./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/protection-local/popl20-more-buffer-mult.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c ./goblint.2024-08-08_07-59-58.files/protection-local/popl20-more-buffer-mult.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 10:37:14,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 10:37:14,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-14 10:37:14,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 10:37:14,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 10:37:15,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 10:37:15,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 10:37:15,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 10:37:15,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 10:37:15,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 10:37:15,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 10:37:15,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 10:37:15,007 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 10:37:15,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 10:37:15,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 10:37:15,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 10:37:15,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 10:37:15,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 10:37:15,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 10:37:15,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 10:37:15,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 10:37:15,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 10:37:15,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 10:37:15,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 10:37:15,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 10:37:15,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 10:37:15,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 10:37:15,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 10:37:15,016 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 10:37:15,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 10:37:15,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 10:37:15,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 10:37:15,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 10:37:15,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 10:37:15,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 10:37:15,019 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 10:37:15,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 10:37:15,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 10:37:15,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 10:37:15,019 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 10:37:15,020 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 10:37:15,020 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 10:37:15,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-14 10:37:15,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 10:37:15,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 10:37:15,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 10:37:15,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 10:37:15,277 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 10:37:15,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2024-08-14 10:37:16,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 10:37:16,875 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 10:37:16,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2024-08-14 10:37:16,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4283f5063/bebe2204252d4af19d120f3415bc43ac/FLAG13889b342 [2024-08-14 10:37:16,905 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4283f5063/bebe2204252d4af19d120f3415bc43ac [2024-08-14 10:37:16,909 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 10:37:16,910 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 10:37:16,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-local/popl20-more-buffer-mult.wvr.yml/witness.yml [2024-08-14 10:37:17,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 10:37:17,064 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 10:37:17,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 10:37:17,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 10:37:17,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 10:37:17,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:37:16" (1/2) ... [2024-08-14 10:37:17,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2eef24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:37:17, skipping insertion in model container [2024-08-14 10:37:17,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:37:16" (1/2) ... [2024-08-14 10:37:17,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41a9fde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:37:17, skipping insertion in model container [2024-08-14 10:37:17,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:37:17" (2/2) ... [2024-08-14 10:37:17,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2eef24 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17, skipping insertion in model container [2024-08-14 10:37:17,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:37:17" (2/2) ... [2024-08-14 10:37:17,073 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-14 10:37:17,103 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 10:37:17,104 INFO L97 edCorrectnessWitness]: Location invariant before [L113-L113] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,104 INFO L97 edCorrectnessWitness]: Location invariant before [L74-L74] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,104 INFO L97 edCorrectnessWitness]: Location invariant before [L61-L61] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L70-L70] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L91-L91] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L49-L49] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L82-L82] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L58-L58] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,105 INFO L97 edCorrectnessWitness]: Location invariant before [L109-L109] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,106 INFO L97 edCorrectnessWitness]: Location invariant before [L53-L53] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,106 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,106 INFO L97 edCorrectnessWitness]: Location invariant before [L118-L118] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,106 INFO L97 edCorrectnessWitness]: Location invariant before [L79-L79] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,106 INFO L97 edCorrectnessWitness]: Location invariant before [L100-L100] (0 <= i) && (0 <= j) [2024-08-14 10:37:17,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 10:37:17,337 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4270,4283] [2024-08-14 10:37:17,348 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 10:37:17,355 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-14 10:37:17,420 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4270,4283] [2024-08-14 10:37:17,424 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 10:37:17,445 INFO L206 MainTranslator]: Completed translation [2024-08-14 10:37:17,449 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17 WrapperNode [2024-08-14 10:37:17,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 10:37:17,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-14 10:37:17,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-14 10:37:17,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-14 10:37:17,459 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 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,470 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 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,520 INFO L138 Inliner]: procedures = 26, calls = 60, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 310 [2024-08-14 10:37:17,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-14 10:37:17,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 10:37:17,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 10:37:17,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 10:37:17,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 10:37:17,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-14 10:37:17,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-14 10:37:17,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-14 10:37:17,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (1/1) ... [2024-08-14 10:37:17,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 10:37:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:17,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-14 10:37:17,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-14 10:37:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 10:37:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-14 10:37:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-14 10:37:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-14 10:37:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-14 10:37:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-14 10:37:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-14 10:37:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-14 10:37:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-14 10:37:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-08-14 10:37:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-08-14 10:37:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-14 10:37:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-14 10:37:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-14 10:37:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 10:37:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 10:37:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 10:37:17,652 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-14 10:37:17,759 INFO L244 CfgBuilder]: Building ICFG [2024-08-14 10:37:17,762 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 10:37:18,256 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-14 10:37:18,256 INFO L293 CfgBuilder]: Performing block encoding [2024-08-14 10:37:18,630 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 10:37:18,631 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-08-14 10:37:18,631 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:37:18 BoogieIcfgContainer [2024-08-14 10:37:18,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-14 10:37:18,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 10:37:18,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 10:37:18,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 10:37:18,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 10:37:16" (1/4) ... [2024-08-14 10:37:18,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7d3829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 10:37:18, skipping insertion in model container [2024-08-14 10:37:18,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 10:37:17" (2/4) ... [2024-08-14 10:37:18,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7d3829 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 10:37:18, skipping insertion in model container [2024-08-14 10:37:18,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 10:37:17" (3/4) ... [2024-08-14 10:37:18,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7d3829 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 10:37:18, skipping insertion in model container [2024-08-14 10:37:18,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:37:18" (4/4) ... [2024-08-14 10:37:18,641 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2024-08-14 10:37:18,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 10:37:18,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-08-14 10:37:18,660 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-14 10:37:18,740 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-14 10:37:18,785 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:18,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:37:18,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:18,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:37:18,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-14 10:37:18,826 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:37:18,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-08-14 10:37:18,849 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;@36a120fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:18,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:37:18,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:18,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1892907507, now seen corresponding path program 1 times [2024-08-14 10:37:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590832226] [2024-08-14 10:37:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:19,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:19,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:19,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590832226] [2024-08-14 10:37:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590832226] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:19,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:19,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:37:19,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888839405] [2024-08-14 10:37:19,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:19,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:37:19,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:19,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:37:19,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:37:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:19,412 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:19,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2024-08-14 10:37:19,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:19,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:19,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 10:37:19,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:19,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:19,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1308028154, now seen corresponding path program 1 times [2024-08-14 10:37:19,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:19,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964929358] [2024-08-14 10:37:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:19,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:19,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:19,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964929358] [2024-08-14 10:37:19,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964929358] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:19,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:19,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:37:19,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068562312] [2024-08-14 10:37:19,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:19,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:37:19,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:37:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:37:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:19,858 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:19,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:19,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:19,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:20,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 10:37:20,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:20,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1409407459, now seen corresponding path program 1 times [2024-08-14 10:37:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:20,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251064479] [2024-08-14 10:37:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:20,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:20,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251064479] [2024-08-14 10:37:20,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251064479] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:20,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:20,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:37:20,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992286769] [2024-08-14 10:37:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:20,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:37:20,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:37:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:37:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:20,183 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:20,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2024-08-14 10:37:20,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:20,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:20,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:22,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:37:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:37:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:37:22,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-08-14 10:37:22,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-14 10:37:22,491 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-08-14 10:37:22,493 INFO L308 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE (1/5) [2024-08-14 10:37:22,496 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:22,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:37:22,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:22,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:37:22,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-14 10:37:22,504 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:37:22,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork1 ======== [2024-08-14 10:37:22,505 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;@36a120fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:22,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-14 10:37:22,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-14 10:37:22,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:22,553 INFO L85 PathProgramCache]: Analyzing trace with hash -860373771, now seen corresponding path program 1 times [2024-08-14 10:37:22,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:22,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219076361] [2024-08-14 10:37:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:22,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:22,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:22,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219076361] [2024-08-14 10:37:22,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219076361] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:22,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:37:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514893244] [2024-08-14 10:37:22,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:22,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:37:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:22,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:37:22,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:37:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:22,641 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:22,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:22,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-14 10:37:22,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-14 10:37:22,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:22,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1880885982, now seen corresponding path program 1 times [2024-08-14 10:37:22,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289312668] [2024-08-14 10:37:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:22,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:22,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289312668] [2024-08-14 10:37:22,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289312668] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:22,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:22,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:37:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135415387] [2024-08-14 10:37:22,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:22,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:37:22,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:22,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:37:22,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:37:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:22,918 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:22,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 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) [2024-08-14 10:37:22,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:22,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:23,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-14 10:37:23,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-14 10:37:23,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1748239743, now seen corresponding path program 1 times [2024-08-14 10:37:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:23,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218416000] [2024-08-14 10:37:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:23,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:23,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:23,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218416000] [2024-08-14 10:37:23,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218416000] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:23,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:23,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:37:23,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097335197] [2024-08-14 10:37:23,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:23,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:37:23,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:23,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:37:23,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:37:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:23,137 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:23,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 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) [2024-08-14 10:37:23,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:23,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:23,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:25,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-08-14 10:37:25,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-14 10:37:25,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-08-14 10:37:25,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-14 10:37:25,221 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-08-14 10:37:25,221 INFO L308 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork1 was SAFE,SAFE,SAFE (2/5) [2024-08-14 10:37:25,227 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:25,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:37:25,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:25,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:37:25,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-08-14 10:37:25,236 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:37:25,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2024-08-14 10:37:25,236 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;@36a120fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:25,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-14 10:37:25,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:25,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1273683164, now seen corresponding path program 1 times [2024-08-14 10:37:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:25,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987384920] [2024-08-14 10:37:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:25,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:25,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987384920] [2024-08-14 10:37:25,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987384920] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:25,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:25,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-14 10:37:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935510702] [2024-08-14 10:37:25,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:25,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 10:37:25,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:25,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 10:37:25,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 10:37:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,329 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:25,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:25,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:25,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-14 10:37:25,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:25,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -852269256, now seen corresponding path program 1 times [2024-08-14 10:37:25,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:25,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893180780] [2024-08-14 10:37:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:25,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:25,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:25,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893180780] [2024-08-14 10:37:25,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893180780] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:25,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:25,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 10:37:25,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276884125] [2024-08-14 10:37:25,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:25,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:37:25,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:25,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:37:25,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:37:25,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,540 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:25,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:25,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:25,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:25,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-14 10:37:25,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-14 10:37:25,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash -726151005, now seen corresponding path program 1 times [2024-08-14 10:37:25,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:25,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773641023] [2024-08-14 10:37:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:25,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 10:37:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:25,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773641023] [2024-08-14 10:37:25,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773641023] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:25,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:25,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:37:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644871742] [2024-08-14 10:37:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:25,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:37:25,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:25,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:37:25,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 10:37:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:25,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:25,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:25,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 10:37:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-14 10:37:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-14 10:37:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-14 10:37:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-08-14 10:37:27,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-14 10:37:27,387 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-08-14 10:37:27,387 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (3/5) [2024-08-14 10:37:27,389 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:27,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 10:37:27,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:27,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 10:37:27,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-08-14 10:37:27,395 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 10:37:27,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-14 10:37:27,397 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;@36a120fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 10:37:27,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-14 10:37:28,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:28,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1178564007, now seen corresponding path program 1 times [2024-08-14 10:37:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:28,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270030642] [2024-08-14 10:37:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:28,844 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-08-14 10:37:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270030642] [2024-08-14 10:37:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270030642] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:28,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:28,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 10:37:28,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8861448] [2024-08-14 10:37:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:28,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:37:28,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:37:28,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:37:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:28,848 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:28,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:28,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:29,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:29,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-14 10:37:29,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:29,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:29,311 INFO L85 PathProgramCache]: Analyzing trace with hash -993014904, now seen corresponding path program 1 times [2024-08-14 10:37:29,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:29,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648311427] [2024-08-14 10:37:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-08-14 10:37:29,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:29,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648311427] [2024-08-14 10:37:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648311427] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:29,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 10:37:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 10:37:29,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128561385] [2024-08-14 10:37:29,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:29,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 10:37:29,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:29,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 10:37:29,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 10:37:29,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:29,597 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:29,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:29,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:29,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:30,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-14 10:37:30,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:30,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1093987490, now seen corresponding path program 1 times [2024-08-14 10:37:30,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:30,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424364919] [2024-08-14 10:37:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:30,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-08-14 10:37:30,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424364919] [2024-08-14 10:37:30,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424364919] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71942961] [2024-08-14 10:37:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:30,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:30,521 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:30,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-14 10:37:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:30,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 10:37:30,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-08-14 10:37:30,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-08-14 10:37:31,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71942961] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:31,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:31,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-08-14 10:37:31,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816448467] [2024-08-14 10:37:31,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:31,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-14 10:37:31,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:31,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-14 10:37:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-08-14 10:37:31,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:31,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:31,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:31,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:31,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:31,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:31,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-14 10:37:31,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-08-14 10:37:31,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:31,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -981950959, now seen corresponding path program 2 times [2024-08-14 10:37:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:31,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967624613] [2024-08-14 10:37:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:31,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 26 proven. 31 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-08-14 10:37:32,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:32,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967624613] [2024-08-14 10:37:32,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967624613] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:32,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278724184] [2024-08-14 10:37:32,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:37:32,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:32,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:32,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:32,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-14 10:37:32,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:37:32,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:32,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 10:37:32,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-08-14 10:37:32,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-08-14 10:37:32,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278724184] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:32,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-08-14 10:37:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277373708] [2024-08-14 10:37:32,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-14 10:37:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-14 10:37:32,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-08-14 10:37:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:32,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:32,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:33,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-14 10:37:33,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-08-14 10:37:33,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:33,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1436969785, now seen corresponding path program 3 times [2024-08-14 10:37:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:33,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696540745] [2024-08-14 10:37:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:33,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-08-14 10:37:33,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:33,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696540745] [2024-08-14 10:37:33,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696540745] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:33,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991322265] [2024-08-14 10:37:33,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-14 10:37:33,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:33,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:33,750 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:33,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-14 10:37:33,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-14 10:37:33,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:33,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-14 10:37:33,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 42 proven. 34 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-08-14 10:37:34,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 31 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-08-14 10:37:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991322265] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:34,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2024-08-14 10:37:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277568617] [2024-08-14 10:37:34,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:34,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-08-14 10:37:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-08-14 10:37:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-08-14 10:37:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:34,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:34,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.423076923076923) internal successors, (193), 26 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:34,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:34,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:34,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:34,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:34,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:35,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-14 10:37:35,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-14 10:37:35,878 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:35,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:35,879 INFO L85 PathProgramCache]: Analyzing trace with hash 957288096, now seen corresponding path program 4 times [2024-08-14 10:37:35,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:35,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591061637] [2024-08-14 10:37:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 54 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-08-14 10:37:36,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:36,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591061637] [2024-08-14 10:37:36,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591061637] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:36,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378022306] [2024-08-14 10:37:36,268 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-14 10:37:36,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:36,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:36,270 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:36,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-14 10:37:36,420 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-14 10:37:36,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:36,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-14 10:37:36,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:36,730 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 90 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-08-14 10:37:36,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:37,016 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 58 proven. 35 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-08-14 10:37:37,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378022306] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:37,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:37,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 22 [2024-08-14 10:37:37,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436592835] [2024-08-14 10:37:37,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-14 10:37:37,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-14 10:37:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-08-14 10:37:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:37,019 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:37,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.0) internal successors, (184), 22 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:37,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:37,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-14 10:37:37,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:37,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:37,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash -338647441, now seen corresponding path program 5 times [2024-08-14 10:37:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:37,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798923558] [2024-08-14 10:37:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:37,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 65 proven. 19 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-08-14 10:37:38,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:38,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798923558] [2024-08-14 10:37:38,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798923558] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:38,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516383272] [2024-08-14 10:37:38,263 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-14 10:37:38,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:38,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:38,265 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:38,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-14 10:37:38,386 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-08-14 10:37:38,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:38,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-14 10:37:38,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 5 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-08-14 10:37:38,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 68 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-08-14 10:37:38,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516383272] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:38,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:38,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-08-14 10:37:38,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531576421] [2024-08-14 10:37:38,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:38,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-14 10:37:38,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:38,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-14 10:37:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-08-14 10:37:38,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:38,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:38,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.705882352941176) internal successors, (148), 17 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:38,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:38,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:38,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:38,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:38,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:44,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-14 10:37:44,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-14 10:37:44,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:44,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1352228100, now seen corresponding path program 6 times [2024-08-14 10:37:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:44,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574723065] [2024-08-14 10:37:44,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:44,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 88 proven. 88 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-14 10:37:45,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:45,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574723065] [2024-08-14 10:37:45,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574723065] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:45,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265399084] [2024-08-14 10:37:45,121 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-14 10:37:45,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:45,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:45,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:45,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-14 10:37:45,291 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-08-14 10:37:45,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:45,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjunts are in the unsatisfiable core [2024-08-14 10:37:45,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 49 proven. 24 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-08-14 10:37:45,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-08-14 10:37:45,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265399084] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:45,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-14 10:37:45,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 6] total 21 [2024-08-14 10:37:45,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749760857] [2024-08-14 10:37:45,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:45,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:37:45,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:37:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-08-14 10:37:45,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:45,440 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:45,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:47,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-14 10:37:47,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-14 10:37:47,534 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:47,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 422139184, now seen corresponding path program 7 times [2024-08-14 10:37:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:47,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472275549] [2024-08-14 10:37:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:47,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 80 proven. 124 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-08-14 10:37:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472275549] [2024-08-14 10:37:48,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472275549] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350930994] [2024-08-14 10:37:48,074 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-14 10:37:48,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:48,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:48,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-14 10:37:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:48,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-14 10:37:48,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 202 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-08-14 10:37:48,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 158 proven. 59 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-08-14 10:37:49,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350930994] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:49,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:49,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2024-08-14 10:37:49,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519204114] [2024-08-14 10:37:49,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:49,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-14 10:37:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-14 10:37:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=971, Unknown=0, NotChecked=0, Total=1260 [2024-08-14 10:37:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:49,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:49,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.305555555555555) internal successors, (227), 35 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:49,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:49,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:50,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-08-14 10:37:50,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-14 10:37:50,767 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:50,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:50,767 INFO L85 PathProgramCache]: Analyzing trace with hash 160438879, now seen corresponding path program 8 times [2024-08-14 10:37:50,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:50,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081604533] [2024-08-14 10:37:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:50,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 118 proven. 110 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 10:37:51,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081604533] [2024-08-14 10:37:51,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081604533] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072211577] [2024-08-14 10:37:51,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:37:51,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:51,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:51,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:51,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-14 10:37:51,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:37:51,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:51,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 18 conjunts are in the unsatisfiable core [2024-08-14 10:37:51,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 212 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-14 10:37:51,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 170 proven. 63 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-14 10:37:52,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072211577] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:52,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:52,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41 [2024-08-14 10:37:52,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653083374] [2024-08-14 10:37:52,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:52,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-14 10:37:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:52,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-14 10:37:52,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2024-08-14 10:37:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:52,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:52,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.0476190476190474) internal successors, (254), 41 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:52,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:52,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:52,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:52,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:52,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:53,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:37:53,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-14 10:37:54,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:54,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:54,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash 637664016, now seen corresponding path program 9 times [2024-08-14 10:37:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701547939] [2024-08-14 10:37:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 201 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-14 10:37:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701547939] [2024-08-14 10:37:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701547939] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167474181] [2024-08-14 10:37:54,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-14 10:37:54,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:54,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:54,937 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:54,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-14 10:37:55,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-08-14 10:37:55,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:55,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-14 10:37:55,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-08-14 10:37:55,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 10:37:55,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167474181] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 10:37:55,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 10:37:55,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-08-14 10:37:55,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093023347] [2024-08-14 10:37:55,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:37:55,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 10:37:55,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:55,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 10:37:55,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-08-14 10:37:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:55,238 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:55,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:55,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:37:55,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:37:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:57,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-14 10:37:57,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:57,221 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:37:57,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:37:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1625455692, now seen corresponding path program 10 times [2024-08-14 10:37:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:37:57,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547877299] [2024-08-14 10:37:57,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:37:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:37:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:37:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 160 proven. 130 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-14 10:37:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:37:57,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547877299] [2024-08-14 10:37:57,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547877299] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:37:57,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055102253] [2024-08-14 10:37:57,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-14 10:37:57,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:37:57,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:37:57,868 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:37:57,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-14 10:37:58,028 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-14 10:37:58,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:37:58,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 21 conjunts are in the unsatisfiable core [2024-08-14 10:37:58,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:37:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 270 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-14 10:37:58,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:37:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 204 proven. 94 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-14 10:37:59,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055102253] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:37:59,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:37:59,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 50 [2024-08-14 10:37:59,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002269186] [2024-08-14 10:37:59,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:37:59,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-08-14 10:37:59,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:37:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-08-14 10:37:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=1965, Unknown=0, NotChecked=0, Total=2550 [2024-08-14 10:37:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:37:59,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:37:59,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.96078431372549) internal successors, (304), 50 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:37:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:37:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:00,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-14 10:38:01,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:01,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:38:01,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:38:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1687062060, now seen corresponding path program 11 times [2024-08-14 10:38:01,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:38:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493017320] [2024-08-14 10:38:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:38:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:38:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:38:02,389 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 161 proven. 56 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-08-14 10:38:02,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:38:02,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493017320] [2024-08-14 10:38:02,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493017320] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:38:02,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077910122] [2024-08-14 10:38:02,390 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-14 10:38:02,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:02,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:38:02,392 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:38:02,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-14 10:38:02,608 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-08-14 10:38:02,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:38:02,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-14 10:38:02,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:38:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-08-14 10:38:02,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:38:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-08-14 10:38:02,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077910122] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-14 10:38:02,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-14 10:38:02,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 6] total 23 [2024-08-14 10:38:02,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588395215] [2024-08-14 10:38:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 10:38:02,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 10:38:02,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:38:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 10:38:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-08-14 10:38:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:02,803 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:38:02,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:02,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:05,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-08-14 10:38:05,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:05,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:38:05,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:38:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1429451545, now seen corresponding path program 12 times [2024-08-14 10:38:05,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:38:05,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889137674] [2024-08-14 10:38:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:38:05,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:38:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:38:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 130 proven. 72 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-08-14 10:38:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:38:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889137674] [2024-08-14 10:38:06,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889137674] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:38:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832023755] [2024-08-14 10:38:06,178 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-14 10:38:06,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:06,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:38:06,181 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:38:06,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-14 10:38:06,657 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-08-14 10:38:06,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:38:06,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 25 conjunts are in the unsatisfiable core [2024-08-14 10:38:06,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:38:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 73 proven. 165 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-14 10:38:07,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:38:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 93 proven. 129 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-08-14 10:38:07,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832023755] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:38:07,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:38:07,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 13] total 39 [2024-08-14 10:38:07,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940115589] [2024-08-14 10:38:07,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:38:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-08-14 10:38:07,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:38:07,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-08-14 10:38:07,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1339, Unknown=0, NotChecked=0, Total=1560 [2024-08-14 10:38:07,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:07,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:38:07,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.725) internal successors, (269), 39 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:07,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:07,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 785 states. [2024-08-14 10:38:48,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-08-14 10:38:48,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-08-14 10:38:48,329 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:38:48,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:38:48,329 INFO L85 PathProgramCache]: Analyzing trace with hash -419756778, now seen corresponding path program 13 times [2024-08-14 10:38:48,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:38:48,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809291858] [2024-08-14 10:38:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:38:48,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:38:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:38:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 81 proven. 335 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2024-08-14 10:38:49,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:38:49,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809291858] [2024-08-14 10:38:49,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809291858] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:38:49,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807380570] [2024-08-14 10:38:49,263 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-14 10:38:49,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:38:49,265 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:38:49,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-14 10:38:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:38:49,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-14 10:38:49,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:38:49,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 631 proven. 10 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2024-08-14 10:38:49,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:38:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 557 proven. 84 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2024-08-14 10:38:50,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807380570] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:38:50,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:38:50,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2024-08-14 10:38:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257551355] [2024-08-14 10:38:50,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:38:50,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-08-14 10:38:50,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:38:50,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-08-14 10:38:50,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2024-08-14 10:38:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:50,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:38:50,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.066666666666666) internal successors, (212), 30 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:50,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 785 states. [2024-08-14 10:38:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 785 states. [2024-08-14 10:38:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 10:38:56,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-08-14 10:38:56,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-08-14 10:38:56,734 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:38:56,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:38:56,734 INFO L85 PathProgramCache]: Analyzing trace with hash -406009796, now seen corresponding path program 14 times [2024-08-14 10:38:56,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:38:56,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334607297] [2024-08-14 10:38:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:38:56,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:38:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 10:38:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 81 proven. 428 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-08-14 10:38:57,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 10:38:57,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334607297] [2024-08-14 10:38:57,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334607297] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 10:38:57,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089116833] [2024-08-14 10:38:57,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 10:38:57,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 10:38:57,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 10:38:57,812 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 10:38:57,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-08-14 10:38:58,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 10:38:58,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 10:38:58,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-14 10:38:58,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 10:38:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 726 proven. 15 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-08-14 10:38:58,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 10:38:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 641 proven. 100 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-08-14 10:38:58,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089116833] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 10:38:58,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 10:38:58,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 36 [2024-08-14 10:38:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933274224] [2024-08-14 10:38:58,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 10:38:58,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-14 10:38:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 10:38:58,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-14 10:38:58,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2024-08-14 10:38:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:38:58,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 10:38:58,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.833333333333333) internal successors, (246), 36 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-14 10:38:58,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 785 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-14 10:38:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 10:39:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 785 states. [2024-08-14 10:39:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 10:39:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 10:39:05,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-08-14 10:39:05,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-08-14 10:39:05,444 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-08-14 10:39:05,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 10:39:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash 20146646, now seen corresponding path program 15 times [2024-08-14 10:39:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 10:39:05,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148335795] [2024-08-14 10:39:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 10:39:05,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 10:39:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat