./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/queue.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/queue.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/queue.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-17 16:10:58,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 16:10:58,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 16:10:58,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 16:10:58,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 16:10:58,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 16:10:58,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 16:10:58,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 16:10:58,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 16:10:58,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 16:10:58,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 16:10:58,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 16:10:58,335 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 16:10:58,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 16:10:58,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 16:10:58,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 16:10:58,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 16:10:58,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 16:10:58,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 16:10:58,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 16:10:58,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 16:10:58,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 16:10:58,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 16:10:58,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 16:10:58,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 16:10:58,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 16:10:58,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 16:10:58,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 16:10:58,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 16:10:58,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 16:10:58,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 16:10:58,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 16:10:58,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 16:10:58,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 16:10:58,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 16:10:58,343 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 16:10:58,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 16:10:58,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 16:10:58,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 16:10:58,344 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 16:10:58,345 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 16:10:58,345 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 16:10:58,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-07-17 16:10:58,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 16:10:58,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 16:10:58,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 16:10:58,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 16:10:58,676 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 16:10:58,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue.i [2024-07-17 16:10:59,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 16:11:00,044 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 16:11:00,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i [2024-07-17 16:11:00,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/861da8c7d/a6b2ea98c88743f99a5d04cc250f5355/FLAG20adea11a [2024-07-17 16:11:00,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/861da8c7d/a6b2ea98c88743f99a5d04cc250f5355 [2024-07-17 16:11:00,082 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-17 16:11:00,082 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-17 16:11:00,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/queue.yml/witness.yml [2024-07-17 16:11:00,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 16:11:00,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 16:11:00,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 16:11:00,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 16:11:00,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 16:11:00,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:11:00" (1/2) ... [2024-07-17 16:11:00,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640da29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:11:00, skipping insertion in model container [2024-07-17 16:11:00,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:11:00" (1/2) ... [2024-07-17 16:11:00,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ffd2bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:11:00, skipping insertion in model container [2024-07-17 16:11:00,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:11:00" (2/2) ... [2024-07-17 16:11:00,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640da29d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00, skipping insertion in model container [2024-07-17 16:11:00,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:11:00" (2/2) ... [2024-07-17 16:11:00,181 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-17 16:11:00,213 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-17 16:11:00,214 INFO L97 edCorrectnessWitness]: Location invariant before [L1065-L1065] ! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL)) [2024-07-17 16:11:00,214 INFO L97 edCorrectnessWitness]: Location invariant before [L1064-L1064] ! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL)) [2024-07-17 16:11:00,214 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-07-17 16:11:00,214 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-17 16:11:00,215 INFO L106 edCorrectnessWitness]: ghost_update [L1020-L1020] m_locked = 1; [2024-07-17 16:11:00,215 INFO L106 edCorrectnessWitness]: ghost_update [L1048-L1048] m_locked = 0; [2024-07-17 16:11:00,215 INFO L106 edCorrectnessWitness]: ghost_update [L1029-L1029] m_locked = 0; [2024-07-17 16:11:00,215 INFO L106 edCorrectnessWitness]: ghost_update [L1063-L1063] multithreaded = 1; [2024-07-17 16:11:00,215 INFO L106 edCorrectnessWitness]: ghost_update [L1039-L1039] m_locked = 1; [2024-07-17 16:11:00,216 INFO L106 edCorrectnessWitness]: ghost_update [L1008-L1008] m_locked = 1; [2024-07-17 16:11:00,216 INFO L106 edCorrectnessWitness]: ghost_update [L1017-L1017] m_locked = 0; [2024-07-17 16:11:00,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 16:11:00,629 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 16:11:00,640 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-17 16:11:00,736 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 16:11:00,794 INFO L206 MainTranslator]: Completed translation [2024-07-17 16:11:00,796 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00 WrapperNode [2024-07-17 16:11:00,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 16:11:00,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 16:11:00,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 16:11:00,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 16:11:00,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,872 INFO L138 Inliner]: procedures = 274, calls = 64, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 266 [2024-07-17 16:11:00,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 16:11:00,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 16:11:00,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 16:11:00,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 16:11:00,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 16:11:00,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 16:11:00,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 16:11:00,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 16:11:00,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (1/1) ... [2024-07-17 16:11:00,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 16:11:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:11:00,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-07-17 16:11:01,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-07-17 16:11:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-07-17 16:11:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-07-17 16:11:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-07-17 16:11:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-07-17 16:11:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-17 16:11:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-07-17 16:11:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-07-17 16:11:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-17 16:11:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 16:11:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 16:11:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 16:11:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 16:11:01,035 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 16:11:01,139 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 16:11:01,140 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 16:11:01,425 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 16:11:01,425 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 16:11:01,719 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 16:11:01,719 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-07-17 16:11:01,720 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:11:01 BoogieIcfgContainer [2024-07-17 16:11:01,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 16:11:01,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 16:11:01,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 16:11:01,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 16:11:01,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:11:00" (1/4) ... [2024-07-17 16:11:01,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5529e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:11:01, skipping insertion in model container [2024-07-17 16:11:01,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:11:00" (2/4) ... [2024-07-17 16:11:01,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5529e1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 04:11:01, skipping insertion in model container [2024-07-17 16:11:01,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:11:00" (3/4) ... [2024-07-17 16:11:01,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5529e1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 04:11:01, skipping insertion in model container [2024-07-17 16:11:01,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:11:01" (4/4) ... [2024-07-17 16:11:01,769 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-07-17 16:11:01,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 16:11:01,799 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-07-17 16:11:01,799 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 16:11:01,916 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-17 16:11:01,957 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 16:11:01,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 16:11:01,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:11:01,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-17 16:11:01,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-07-17 16:11:02,015 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 16:11:02,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 16:11:02,037 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;@358c81ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 16:11:02,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-07-17 16:11:02,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:02,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash 520513683, now seen corresponding path program 1 times [2024-07-17 16:11:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462162282] [2024-07-17 16:11:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:02,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:02,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462162282] [2024-07-17 16:11:02,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462162282] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:02,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:02,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-17 16:11:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007616598] [2024-07-17 16:11:02,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:02,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-07-17 16:11:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:02,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-07-17 16:11:02,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-07-17 16:11:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,512 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:02,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:02,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 16:11:02,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:02,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1612865520, now seen corresponding path program 1 times [2024-07-17 16:11:02,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:02,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403710625] [2024-07-17 16:11:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:02,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:02,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:02,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403710625] [2024-07-17 16:11:02,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403710625] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:02,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 16:11:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836831258] [2024-07-17 16:11:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:02,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 16:11:02,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 16:11:02,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 16:11:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:02,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:02,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:02,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-17 16:11:02,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:02,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1540840986, now seen corresponding path program 1 times [2024-07-17 16:11:02,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:02,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848331695] [2024-07-17 16:11:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:02,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:02,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:02,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848331695] [2024-07-17 16:11:02,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848331695] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:02,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:02,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 16:11:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882174167] [2024-07-17 16:11:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:02,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-17 16:11:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-17 16:11:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-17 16:11:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,871 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:02,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:02,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:02,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:02,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:03,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-07-17 16:11:03,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:03,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash 221516153, now seen corresponding path program 1 times [2024-07-17 16:11:03,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:03,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623095472] [2024-07-17 16:11:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:03,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:03,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:03,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623095472] [2024-07-17 16:11:03,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623095472] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:03,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:03,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-17 16:11:03,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264499352] [2024-07-17 16:11:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:03,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-07-17 16:11:03,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-07-17 16:11:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-07-17 16:11:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:03,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:03,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:03,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:03,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-07-17 16:11:03,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:03,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1013400420, now seen corresponding path program 1 times [2024-07-17 16:11:03,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:03,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919384921] [2024-07-17 16:11:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:03,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:03,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919384921] [2024-07-17 16:11:03,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919384921] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:03,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:03,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-07-17 16:11:03,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258035935] [2024-07-17 16:11:03,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:03,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 16:11:03,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:03,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 16:11:03,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 16:11:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:03,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:03,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:03,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:03,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-07-17 16:11:03,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:03,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:03,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1894654021, now seen corresponding path program 1 times [2024-07-17 16:11:03,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:03,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682247368] [2024-07-17 16:11:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:04,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:04,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682247368] [2024-07-17 16:11:04,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682247368] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:04,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:04,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-17 16:11:04,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416752817] [2024-07-17 16:11:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:04,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-17 16:11:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-17 16:11:04,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-07-17 16:11:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:04,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:04,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-07-17 16:11:04,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:04,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1298572009, now seen corresponding path program 1 times [2024-07-17 16:11:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:04,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283446270] [2024-07-17 16:11:04,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:04,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:04,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283446270] [2024-07-17 16:11:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283446270] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:04,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:04,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-17 16:11:04,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038216637] [2024-07-17 16:11:04,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:04,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-17 16:11:04,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:04,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-17 16:11:04,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-07-17 16:11:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:04,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:04,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:04,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-07-17 16:11:04,881 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:04,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash -517576684, now seen corresponding path program 2 times [2024-07-17 16:11:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170844114] [2024-07-17 16:11:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:04,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:05,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:05,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170844114] [2024-07-17 16:11:05,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170844114] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:05,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61293790] [2024-07-17 16:11:05,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 16:11:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 16:11:05,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:11:05,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 16:11:05,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-17 16:11:05,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 16:11:05,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 16:11:05,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2024-07-17 16:11:05,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 16:11:05,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 71 [2024-07-17 16:11:05,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 72 treesize of output 48 [2024-07-17 16:11:05,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-07-17 16:11:05,685 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 8 treesize of output 1 [2024-07-17 16:11:05,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 140 [2024-07-17 16:11:05,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-07-17 16:11:05,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 87 [2024-07-17 16:11:05,846 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 8 treesize of output 1 [2024-07-17 16:11:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:06,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 16:11:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:06,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61293790] provided 1 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:06,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-07-17 16:11:06,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 17 [2024-07-17 16:11:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656946962] [2024-07-17 16:11:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:06,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-17 16:11:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:06,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-17 16:11:06,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2024-07-17 16:11:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:06,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:06,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:06,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:06,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:06,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:06,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:08,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-17 16:11:08,252 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,SelfDestructingSolverStorable7 [2024-07-17 16:11:08,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:08,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1218506604, now seen corresponding path program 3 times [2024-07-17 16:11:08,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:08,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655452026] [2024-07-17 16:11:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-17 16:11:08,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:08,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655452026] [2024-07-17 16:11:08,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655452026] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:08,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841785819] [2024-07-17 16:11:08,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-17 16:11:08,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 16:11:08,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:11:08,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 16:11:08,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-17 16:11:08,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-07-17 16:11:08,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 16:11:08,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2024-07-17 16:11:08,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 16:11:08,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 71 [2024-07-17 16:11:08,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 72 treesize of output 48 [2024-07-17 16:11:08,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 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 26 treesize of output 33 [2024-07-17 16:11:08,883 INFO L173 IndexEqualityManager]: detected equality via solver [2024-07-17 16:11:08,886 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-07-17 16:11:08,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-07-17 16:11:08,895 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-07-17 16:11:08,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 5 [2024-07-17 16:11:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:09,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 16:11:09,162 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-07-17 16:11:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-17 16:11:09,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841785819] provided 1 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:09,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-07-17 16:11:09,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 15 [2024-07-17 16:11:09,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563661651] [2024-07-17 16:11:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:09,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-17 16:11:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-17 16:11:09,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-07-17 16:11:09,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:09,512 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:09,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:09,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:09,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-17 16:11:11,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 16:11:11,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:11,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:11,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1676313959, now seen corresponding path program 1 times [2024-07-17 16:11:11,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:11,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110531860] [2024-07-17 16:11:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:11,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:11:11,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110531860] [2024-07-17 16:11:11,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110531860] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:11:11,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:11:11,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-17 16:11:11,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483258003] [2024-07-17 16:11:11,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:11,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-17 16:11:11,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:11,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-17 16:11:11,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-17 16:11:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,581 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:11,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:11,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 16:11:11,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-07-17 16:11:11,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:11:11,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:11:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash -525433187, now seen corresponding path program 4 times [2024-07-17 16:11:11,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:11:11,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777599447] [2024-07-17 16:11:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:11:11,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:11:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:11:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-07-17 16:11:12,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:11:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777599447] [2024-07-17 16:11:12,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777599447] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557426336] [2024-07-17 16:11:12,510 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-17 16:11:12,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 16:11:12,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:11:12,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 16:11:12,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-17 16:11:12,819 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-17 16:11:12,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 16:11:12,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 16 conjunts are in the unsatisfiable core [2024-07-17 16:11:12,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 16:11:12,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 71 [2024-07-17 16:11:12,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 72 treesize of output 48 [2024-07-17 16:11:12,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 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 26 treesize of output 33 [2024-07-17 16:11:12,965 INFO L173 IndexEqualityManager]: detected equality via solver [2024-07-17 16:11:12,968 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-07-17 16:11:12,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-07-17 16:11:12,976 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-07-17 16:11:12,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 5 [2024-07-17 16:11:13,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 72 [2024-07-17 16:11:13,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-07-17 16:11:13,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2024-07-17 16:11:13,076 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 8 treesize of output 1 [2024-07-17 16:11:13,308 INFO L349 Elim1Store]: treesize reduction 29, result has 38.3 percent of original size [2024-07-17 16:11:13,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 139 [2024-07-17 16:11:13,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 16 [2024-07-17 16:11:13,395 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-07-17 16:11:13,407 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-07-17 16:11:13,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 96 [2024-07-17 16:11:13,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2024-07-17 16:11:13,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-07-17 16:11:13,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 147 [2024-07-17 16:11:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-17 16:11:13,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 16:11:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-07-17 16:11:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557426336] provided 1 perfect and 1 imperfect interpolant sequences [2024-07-17 16:11:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-07-17 16:11:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 6] total 14 [2024-07-17 16:11:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933098376] [2024-07-17 16:11:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:11:14,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-07-17 16:11:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:11:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-07-17 16:11:14,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2024-07-17 16:11:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:14,423 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:11:14,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 16:11:14,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:11:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 16:11:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 16:11:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-07-17 16:11:15,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-07-17 16:11:15,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-07-17 16:11:15,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-07-17 16:11:15,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-07-17 16:11:15,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-17 16:11:15,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 16:11:15,954 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2024-07-17 16:11:15,956 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-17 16:11:15,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-17 16:11:15,958 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-07-17 16:11:15,958 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-07-17 16:11:15,959 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:11:15 BasicIcfg [2024-07-17 16:11:15,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-17 16:11:15,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-17 16:11:15,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-17 16:11:15,961 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-17 16:11:15,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:11:01" (4/5) ... [2024-07-17 16:11:15,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-17 16:11:15,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-07-17 16:11:15,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-07-17 16:11:15,970 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 80 nodes and edges [2024-07-17 16:11:15,971 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-07-17 16:11:15,971 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-07-17 16:11:15,971 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-07-17 16:11:15,971 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-07-17 16:11:15,971 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-07-17 16:11:16,016 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/pthread/queue.i-witness.graphml [2024-07-17 16:11:16,017 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/pthread/queue.i-witness.yml [2024-07-17 16:11:16,017 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-17 16:11:16,017 INFO L158 Benchmark]: Toolchain (without parser) took 15846.25ms. Allocated memory was 148.9MB in the beginning and 513.8MB in the end (delta: 364.9MB). Free memory was 113.7MB in the beginning and 382.3MB in the end (delta: -268.7MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,018 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory was 83.9MB in the beginning and 83.9MB in the end (delta: 55.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 16:11:16,018 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 16:11:16,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.95ms. Allocated memory is still 148.9MB. Free memory was 113.1MB in the beginning and 75.2MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.77ms. Allocated memory is still 148.9MB. Free memory was 75.2MB in the beginning and 117.5MB in the end (delta: -42.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,018 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 114.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,021 INFO L158 Benchmark]: RCFGBuilder took 805.89ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 89.3MB in the end (delta: 25.2MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,021 INFO L158 Benchmark]: TraceAbstraction took 14237.31ms. Allocated memory was 148.9MB in the beginning and 513.8MB in the end (delta: 364.9MB). Free memory was 89.3MB in the beginning and 386.7MB in the end (delta: -297.5MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,022 INFO L158 Benchmark]: Witness Printer took 57.26ms. Allocated memory is still 513.8MB. Free memory was 386.7MB in the beginning and 382.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-07-17 16:11:16,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory was 83.9MB in the beginning and 83.9MB in the end (delta: 55.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.95ms. Allocated memory is still 148.9MB. Free memory was 113.1MB in the beginning and 75.2MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.77ms. Allocated memory is still 148.9MB. Free memory was 75.2MB in the beginning and 117.5MB in the end (delta: -42.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 114.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 805.89ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 89.3MB in the end (delta: 25.2MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14237.31ms. Allocated memory was 148.9MB in the beginning and 513.8MB in the end (delta: 364.9MB). Free memory was 89.3MB in the beginning and 386.7MB in the end (delta: -297.5MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Witness Printer took 57.26ms. Allocated memory is still 513.8MB. Free memory was 386.7MB in the beginning and 382.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9450, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 825, dependent conditional: 786, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8707, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 82, dependent conditional: 43, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8707, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 82, dependent conditional: 43, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 972, dependent unconditional: 1011, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 810, dependent unconditional: 1173, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 810, dependent unconditional: 1173, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 773, independent: 652, independent conditional: 44, independent unconditional: 608, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 773, independent: 585, independent conditional: 0, independent unconditional: 585, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 188, independent: 67, independent conditional: 44, independent unconditional: 23, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 188, independent: 67, independent conditional: 44, independent unconditional: 23, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4454, independent: 329, independent conditional: 207, independent unconditional: 122, dependent: 603, dependent conditional: 376, dependent unconditional: 227, unknown: 3522, unknown conditional: 3310, unknown unconditional: 213] , Protected Queries: 0 ], Cache Queries: [ total: 10824, independent: 7896, independent conditional: 810, independent unconditional: 7086, dependent: 1879, dependent conditional: 745, dependent unconditional: 1134, unknown: 1049, unknown conditional: 400, unknown unconditional: 649] , Statistics on independence cache: Total cache size (in pairs): 756, Positive cache size: 652, Positive conditional cache size: 44, Positive unconditional cache size: 608, Negative cache size: 104, Negative conditional cache size: 65, Negative unconditional cache size: 39, Unknown cache size: 17, Unknown conditional cache size: 15, Unknown unconditional cache size: 2, Eliminated conditions: 162, Maximal queried relation: 9, Independence queries for same thread: 743 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 181, Number of trivial persistent sets: 159, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 705, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9450, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 825, dependent conditional: 786, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8707, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 82, dependent conditional: 43, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8707, independent: 8548, independent conditional: 7884, independent unconditional: 664, dependent: 82, dependent conditional: 43, dependent unconditional: 39, unknown: 77, unknown conditional: 75, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 972, dependent unconditional: 1011, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 810, dependent unconditional: 1173, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10824, independent: 8548, independent conditional: 854, independent unconditional: 7694, dependent: 1983, dependent conditional: 810, dependent unconditional: 1173, unknown: 293, unknown conditional: 291, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 773, independent: 652, independent conditional: 44, independent unconditional: 608, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 773, independent: 585, independent conditional: 0, independent unconditional: 585, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 188, independent: 67, independent conditional: 44, independent unconditional: 23, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 188, independent: 67, independent conditional: 44, independent unconditional: 23, dependent: 104, dependent conditional: 65, dependent unconditional: 39, unknown: 17, unknown conditional: 15, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4454, independent: 329, independent conditional: 207, independent unconditional: 122, dependent: 603, dependent conditional: 376, dependent unconditional: 227, unknown: 3522, unknown conditional: 3310, unknown unconditional: 213] , Protected Queries: 0 ], Cache Queries: [ total: 10824, independent: 7896, independent conditional: 810, independent unconditional: 7086, dependent: 1879, dependent conditional: 745, dependent unconditional: 1134, unknown: 1049, unknown conditional: 400, unknown unconditional: 649] , Statistics on independence cache: Total cache size (in pairs): 756, Positive cache size: 652, Positive conditional cache size: 44, Positive unconditional cache size: 608, Negative cache size: 104, Negative conditional cache size: 65, Negative unconditional cache size: 39, Unknown cache size: 17, Unknown conditional cache size: 15, Unknown unconditional cache size: 2, Eliminated conditions: 162, Maximal queried relation: 9, Independence queries for same thread: 743 - PositiveResult [Line: 1064]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1065]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 14.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 5.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 425 ConstructedInterpolants, 10 QuantifiedInterpolants, 4722 SizeOfPredicates, 151 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 54/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-07-17 16:11:16,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-07-17 16:11:16,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE