./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/popl20-three-array-max.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c ./goblint.2024-09-02_08-21-23.files/protection-local/popl20-three-array-max.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 18:13:55,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 18:13:56,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 18:13:56,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 18:13:56,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 18:13:56,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 18:13:56,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 18:13:56,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 18:13:56,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 18:13:56,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 18:13:56,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 18:13:56,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 18:13:56,069 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 18:13:56,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 18:13:56,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 18:13:56,070 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 18:13:56,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 18:13:56,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 18:13:56,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 18:13:56,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 18:13:56,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 18:13:56,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 18:13:56,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 18:13:56,073 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 18:13:56,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 18:13:56,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 18:13:56,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 18:13:56,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 18:13:56,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 18:13:56,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 18:13:56,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 18:13:56,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 18:13:56,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 18:13:56,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 18:13:56,076 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 18:13:56,076 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 18:13:56,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 18:13:56,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 18:13:56,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 18:13:56,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 18:13:56,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 18:13:56,306 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 18:13:56,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2024-09-08 18:13:57,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 18:13:57,714 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 18:13:57,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2024-09-08 18:13:57,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6910e46cc/91afa4b9c8104acf909d65fc748299c0/FLAGef2627b56 [2024-09-08 18:13:57,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6910e46cc/91afa4b9c8104acf909d65fc748299c0 [2024-09-08 18:13:57,735 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 18:13:57,735 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 18:13:57,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/popl20-three-array-max.wvr.yml/witness.yml [2024-09-08 18:13:57,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 18:13:57,779 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 18:13:57,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 18:13:57,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 18:13:57,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 18:13:57,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:13:57" (1/2) ... [2024-09-08 18:13:57,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389c725b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:13:57, skipping insertion in model container [2024-09-08 18:13:57,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:13:57" (1/2) ... [2024-09-08 18:13:57,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43351e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:13:57, skipping insertion in model container [2024-09-08 18:13:57,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 06:13:57" (2/2) ... [2024-09-08 18:13:57,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389c725b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:57, skipping insertion in model container [2024-09-08 18:13:57,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 06:13:57" (2/2) ... [2024-09-08 18:13:57,798 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 18:13:57,800 INFO L1541 ArrayList]: Location invariant before [L63-L63] 1 <= p [2024-09-08 18:13:57,800 INFO L1541 ArrayList]: Location invariant before [L79-L81] 1 <= p [2024-09-08 18:13:57,800 INFO L1541 ArrayList]: Location invariant before [L75-L75] 1 <= p [2024-09-08 18:13:57,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 18:13:57,987 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-three-array-max.wvr.c[2862,2875] [2024-09-08 18:13:57,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 18:13:58,004 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 18:13:58,043 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-three-array-max.wvr.c[2862,2875] [2024-09-08 18:13:58,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 18:13:58,062 INFO L204 MainTranslator]: Completed translation [2024-09-08 18:13:58,062 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58 WrapperNode [2024-09-08 18:13:58,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 18:13:58,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 18:13:58,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 18:13:58,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 18:13:58,068 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 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,079 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 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,112 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 224 [2024-09-08 18:13:58,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 18:13:58,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 18:13:58,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 18:13:58,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 18:13:58,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 18:13:58,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 18:13:58,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 18:13:58,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 18:13:58,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (1/1) ... [2024-09-08 18:13:58,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 18:13:58,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:13:58,183 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) [2024-09-08 18:13:58,185 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 [2024-09-08 18:13:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 18:13:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 18:13:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 18:13:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 18:13:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 18:13:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 18:13:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 18:13:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 18:13:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 18:13:58,228 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 18:13:58,340 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 18:13:58,342 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 18:13:58,718 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 18:13:58,718 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 18:13:59,007 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 18:13:59,008 INFO L318 CfgBuilder]: Removed 6 assume(true) statements. [2024-09-08 18:13:59,009 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:13:59 BoogieIcfgContainer [2024-09-08 18:13:59,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 18:13:59,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 18:13:59,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 18:13:59,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 18:13:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:13:57" (1/4) ... [2024-09-08 18:13:59,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5947523e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:13:59, skipping insertion in model container [2024-09-08 18:13:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 06:13:57" (2/4) ... [2024-09-08 18:13:59,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5947523e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 06:13:59, skipping insertion in model container [2024-09-08 18:13:59,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 06:13:58" (3/4) ... [2024-09-08 18:13:59,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5947523e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 06:13:59, skipping insertion in model container [2024-09-08 18:13:59,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:13:59" (4/4) ... [2024-09-08 18:13:59,017 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2024-09-08 18:13:59,037 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 18:13:59,037 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-08 18:13:59,037 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 18:13:59,080 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 18:13:59,118 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 18:13:59,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 18:13:59,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:13:59,121 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) [2024-09-08 18:13:59,122 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 [2024-09-08 18:13:59,149 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 18:13:59,158 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-09-08 18:13:59,163 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@59fb7317, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 18:13:59,164 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 18:13:59,284 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 18:13:59,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:13:59,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1961812838, now seen corresponding path program 1 times [2024-09-08 18:13:59,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:13:59,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710688221] [2024-09-08 18:13:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:13:59,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:13:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:13:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 18:13:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:13:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710688221] [2024-09-08 18:13:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710688221] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:13:59,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 18:13:59,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 18:13:59,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996999519] [2024-09-08 18:13:59,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:13:59,670 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 18:13:59,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:13:59,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 18:13:59,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 18:13:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:13:59,690 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:13:59,691 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 18:13:59,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:13:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:13:59,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 18:13:59,769 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 18:13:59,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:13:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1393727713, now seen corresponding path program 1 times [2024-09-08 18:13:59,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:13:59,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927302960] [2024-09-08 18:13:59,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:13:59,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:13:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:13:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 18:13:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:13:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927302960] [2024-09-08 18:13:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927302960] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:13:59,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 18:13:59,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 18:13:59,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805547358] [2024-09-08 18:13:59,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:13:59,891 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 18:13:59,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:13:59,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 18:13:59,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-08 18:13:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:13:59,892 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:13:59,892 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-09-08 18:13:59,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:13:59,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:00,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 18:14:00,009 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 18:14:00,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:00,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2140654909, now seen corresponding path program 1 times [2024-09-08 18:14:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:00,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920430482] [2024-09-08 18:14:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 18:14:00,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:00,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920430482] [2024-09-08 18:14:00,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920430482] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:00,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466556047] [2024-09-08 18:14:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:00,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:00,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:00,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 18:14:00,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 18:14:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:00,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 18:14:00,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 18:14:00,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 18:14:00,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466556047] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:14:00,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 18:14:00,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-09-08 18:14:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905961675] [2024-09-08 18:14:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:00,337 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 18:14:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:00,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 18:14:00,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 18:14:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:00,338 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:00,338 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-09-08 18:14:00,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:00,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 18:14:00,606 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-09-08 18:14:00,607 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 18:14:00,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:00,608 INFO L85 PathProgramCache]: Analyzing trace with hash 172450325, now seen corresponding path program 1 times [2024-09-08 18:14:00,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:00,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928246959] [2024-09-08 18:14:00,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:00,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 18:14:00,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:00,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928246959] [2024-09-08 18:14:00,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928246959] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751326147] [2024-09-08 18:14:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:00,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:00,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:00,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 18:14:00,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 18:14:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:00,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 18:14:00,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 18:14:00,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 18:14:00,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751326147] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:14:00,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 18:14:00,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-08 18:14:00,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477148024] [2024-09-08 18:14:00,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:00,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 18:14:00,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:00,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 18:14:00,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-08 18:14:00,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:00,899 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:00,899 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 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) [2024-09-08 18:14:00,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:00,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:00,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 18:14:01,185 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:01,185 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 18:14:01,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1290717188, now seen corresponding path program 1 times [2024-09-08 18:14:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988723535] [2024-09-08 18:14:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:01,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 18:14:01,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988723535] [2024-09-08 18:14:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988723535] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:01,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215095218] [2024-09-08 18:14:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:01,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:01,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:01,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 18:14:01,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 18:14:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:01,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 18:14:01,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 18:14:01,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 18:14:01,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215095218] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:01,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:01,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-09-08 18:14:01,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121574238] [2024-09-08 18:14:01,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:01,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 18:14:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:01,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 18:14:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-09-08 18:14:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:01,558 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:01,559 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-09-08 18:14:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 18:14:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 18:14:02,325 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-08 18:14:02,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 18:14:02,526 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:02,532 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-08 18:14:02,534 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE (1/3) [2024-09-08 18:14:02,536 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 18:14:02,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 18:14:02,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:02,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 18:14:02,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-09-08 18:14:02,544 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 18:14:02,545 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 18:14:02,545 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@59fb7317, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 18:14:02,545 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 18:14:02,666 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:02,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 680362004, now seen corresponding path program 1 times [2024-09-08 18:14:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595553295] [2024-09-08 18:14:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 18:14:02,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:02,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595553295] [2024-09-08 18:14:02,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595553295] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:14:02,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 18:14:02,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 18:14:02,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727898733] [2024-09-08 18:14:02,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:02,760 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 18:14:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 18:14:02,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 18:14:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:02,761 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:02,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-09-08 18:14:02,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:02,820 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-08 18:14:02,820 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:02,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:02,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2030237438, now seen corresponding path program 1 times [2024-09-08 18:14:02,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:02,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534529888] [2024-09-08 18:14:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:02,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 18:14:02,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534529888] [2024-09-08 18:14:02,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534529888] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203806974] [2024-09-08 18:14:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:02,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:02,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:02,946 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) [2024-09-08 18:14:02,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 18:14:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:03,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 18:14:03,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 18:14:03,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 18:14:03,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203806974] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:14:03,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 18:14:03,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-08 18:14:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198980839] [2024-09-08 18:14:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:03,046 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 18:14:03,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:03,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 18:14:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-08 18:14:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:03,047 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:03,047 INFO L475 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) [2024-09-08 18:14:03,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:03,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:03,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 18:14:03,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:03,322 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:03,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1942161157, now seen corresponding path program 1 times [2024-09-08 18:14:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:03,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578662754] [2024-09-08 18:14:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 18:14:03,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:03,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578662754] [2024-09-08 18:14:03,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578662754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:03,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496227256] [2024-09-08 18:14:03,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:03,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:03,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:03,466 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) [2024-09-08 18:14:03,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 18:14:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:03,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 18:14:03,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 18:14:03,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 18:14:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496227256] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:03,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-08 18:14:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019987616] [2024-09-08 18:14:03,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:03,682 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 18:14:03,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 18:14:03,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-09-08 18:14:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:03,683 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:03,683 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 18:14:03,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:03,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:03,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:03,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 18:14:04,001 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-08 18:14:04,002 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:04,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:04,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1555559220, now seen corresponding path program 2 times [2024-09-08 18:14:04,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:04,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667227881] [2024-09-08 18:14:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:04,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:04,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 18:14:04,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:04,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667227881] [2024-09-08 18:14:04,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667227881] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:04,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713853129] [2024-09-08 18:14:04,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 18:14:04,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:04,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:04,147 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) [2024-09-08 18:14:04,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 18:14:04,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 18:14:04,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:04,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 18:14:04,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:04,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 18:14:04,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2024-09-08 18:14:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 18:14:04,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 18:14:04,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713853129] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 18:14:04,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 18:14:04,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-08 18:14:04,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795865730] [2024-09-08 18:14:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:04,317 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 18:14:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 18:14:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-08 18:14:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:04,318 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:04,318 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2024-09-08 18:14:04,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:04,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:04,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:04,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:04,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 18:14:04,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:04,564 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:04,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1788412824, now seen corresponding path program 1 times [2024-09-08 18:14:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:04,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358689937] [2024-09-08 18:14:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:04,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:04,771 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 18:14:04,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358689937] [2024-09-08 18:14:04,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358689937] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684735082] [2024-09-08 18:14:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:04,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:04,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:04,775 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) [2024-09-08 18:14:04,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 18:14:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:04,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 18:14:04,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 18:14:04,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:05,019 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 18:14:05,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684735082] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:05,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-08 18:14:05,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2024-09-08 18:14:05,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803526969] [2024-09-08 18:14:05,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 18:14:05,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 18:14:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:05,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 18:14:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-09-08 18:14:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:05,020 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:05,021 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-09-08 18:14:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:05,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 18:14:05,348 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-08 18:14:05,349 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:05,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1235128788, now seen corresponding path program 1 times [2024-09-08 18:14:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234074190] [2024-09-08 18:14:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:05,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 18:14:05,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:05,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234074190] [2024-09-08 18:14:05,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234074190] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48321865] [2024-09-08 18:14:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:05,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:05,537 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) [2024-09-08 18:14:05,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 18:14:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:05,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 18:14:05,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 18:14:05,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 18:14:05,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48321865] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:05,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:05,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-09-08 18:14:05,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866892237] [2024-09-08 18:14:05,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:05,887 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 18:14:05,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:05,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 18:14:05,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-09-08 18:14:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:05,889 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:05,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 states have internal predecessors, (73), 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) [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:05,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:06,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-08 18:14:06,307 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-08 18:14:06,307 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:06,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:06,307 INFO L85 PathProgramCache]: Analyzing trace with hash 992716179, now seen corresponding path program 2 times [2024-09-08 18:14:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:06,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767037794] [2024-09-08 18:14:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 18:14:06,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767037794] [2024-09-08 18:14:06,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767037794] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419522846] [2024-09-08 18:14:06,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 18:14:06,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:06,510 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) [2024-09-08 18:14:06,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 18:14:06,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 18:14:06,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:06,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 18:14:06,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 18:14:06,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 18:14:06,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419522846] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:06,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:06,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-09-08 18:14:06,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120320033] [2024-09-08 18:14:06,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:06,867 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-08 18:14:06,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-08 18:14:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-09-08 18:14:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:06,868 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:06,868 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 17 states have internal predecessors, (76), 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) [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:06,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:07,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-08 18:14:07,311 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:07,312 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:07,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1505954357, now seen corresponding path program 3 times [2024-09-08 18:14:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:07,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577665120] [2024-09-08 18:14:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 18:14:07,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:07,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577665120] [2024-09-08 18:14:07,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577665120] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:07,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869821571] [2024-09-08 18:14:07,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 18:14:07,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:07,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:07,543 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) [2024-09-08 18:14:07,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 18:14:07,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 18:14:07,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:07,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 18:14:07,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 18:14:07,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 18:14:07,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869821571] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:07,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:07,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2024-09-08 18:14:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112359077] [2024-09-08 18:14:07,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:07,839 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 18:14:07,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 18:14:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-09-08 18:14:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:07,840 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:07,840 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 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) [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:08,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-08 18:14:08,735 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-08 18:14:08,736 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:08,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1451740741, now seen corresponding path program 1 times [2024-09-08 18:14:08,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:08,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245876934] [2024-09-08 18:14:08,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:08,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 33 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-08 18:14:08,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:08,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245876934] [2024-09-08 18:14:08,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245876934] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:08,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134229904] [2024-09-08 18:14:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:08,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:08,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:08,984 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) [2024-09-08 18:14:08,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 18:14:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:09,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-08 18:14:09,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-08 18:14:09,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 40 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-08 18:14:09,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134229904] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:09,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:09,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2024-09-08 18:14:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255102763] [2024-09-08 18:14:09,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:09,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-08 18:14:09,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-08 18:14:09,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-09-08 18:14:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:09,382 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:09,382 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.608695652173913) internal successors, (106), 22 states have internal predecessors, (106), 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) [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:09,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-08 18:14:09,873 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-08 18:14:09,873 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:09,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:09,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1908882765, now seen corresponding path program 2 times [2024-09-08 18:14:09,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:09,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915519969] [2024-09-08 18:14:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:09,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 69 proven. 20 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-08 18:14:10,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915519969] [2024-09-08 18:14:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915519969] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702657152] [2024-09-08 18:14:10,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 18:14:10,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:10,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:10,241 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) [2024-09-08 18:14:10,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 18:14:10,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 18:14:10,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:10,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 18:14:10,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-08 18:14:10,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-08 18:14:10,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702657152] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:10,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:10,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 26 [2024-09-08 18:14:10,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125454881] [2024-09-08 18:14:10,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:10,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-08 18:14:10,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-08 18:14:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2024-09-08 18:14:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:10,727 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:10,728 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 26 states have internal predecessors, (126), 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) [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:10,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:10,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-08 18:14:11,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-08 18:14:11,087 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:11,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash 829751066, now seen corresponding path program 3 times [2024-09-08 18:14:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:11,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840703483] [2024-09-08 18:14:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 42 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-08 18:14:11,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:11,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840703483] [2024-09-08 18:14:11,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840703483] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:11,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467478525] [2024-09-08 18:14:11,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 18:14:11,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:11,390 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) [2024-09-08 18:14:11,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 18:14:11,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 18:14:11,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:11,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 18:14:11,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 63 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-09-08 18:14:11,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-08 18:14:11,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467478525] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:11,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:11,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 7] total 25 [2024-09-08 18:14:11,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419776388] [2024-09-08 18:14:11,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:11,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-08 18:14:11,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:11,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-08 18:14:11,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2024-09-08 18:14:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:11,744 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:11,744 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.84) internal successors, (121), 25 states have internal predecessors, (121), 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) [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:11,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:11,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:11,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:11,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:11,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:11,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-09-08 18:14:14,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-08 18:14:14,348 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-08 18:14:14,348 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:14,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:14,348 INFO L85 PathProgramCache]: Analyzing trace with hash 708834514, now seen corresponding path program 4 times [2024-09-08 18:14:14,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:14,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143332305] [2024-09-08 18:14:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 111 proven. 29 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-08 18:14:14,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:14,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143332305] [2024-09-08 18:14:14,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143332305] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:14,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679827434] [2024-09-08 18:14:14,716 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 18:14:14,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:14,718 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) [2024-09-08 18:14:14,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 18:14:14,837 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 18:14:14,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:14,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 18:14:14,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 57 proven. 68 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-08 18:14:15,086 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-09-08 18:14:15,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679827434] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:15,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:15,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 6] total 27 [2024-09-08 18:14:15,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47264765] [2024-09-08 18:14:15,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:15,189 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-08 18:14:15,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:15,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-08 18:14:15,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-09-08 18:14:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:15,190 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:15,190 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.666666666666667) internal successors, (153), 27 states have internal predecessors, (153), 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) [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:15,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:15,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2024-09-08 18:14:15,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-09-08 18:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 18:14:16,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-08 18:14:16,485 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 18:14:16,485 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:16,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:16,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1806254921, now seen corresponding path program 4 times [2024-09-08 18:14:16,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:16,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283251398] [2024-09-08 18:14:16,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:16,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 18:14:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 18:14:16,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 18:14:16,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283251398] [2024-09-08 18:14:16,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283251398] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 18:14:16,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146335251] [2024-09-08 18:14:16,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 18:14:16,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 18:14:16,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 18:14:16,789 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) [2024-09-08 18:14:16,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-08 18:14:16,922 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 18:14:16,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 18:14:16,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 18:14:16,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 18:14:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 23 proven. 70 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 18:14:17,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 18:14:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 29 proven. 64 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 18:14:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146335251] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 18:14:17,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 18:14:17,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 31 [2024-09-08 18:14:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909760180] [2024-09-08 18:14:17,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 18:14:17,332 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-08 18:14:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 18:14:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-08 18:14:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2024-09-08 18:14:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:17,333 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 18:14:17,333 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.40625) internal successors, (141), 31 states have internal predecessors, (141), 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) [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 18:14:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 18:14:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 18:14:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-08 18:14:17,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-08 18:14:17,923 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-08 18:14:17,923 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 18:14:17,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 18:14:17,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2146079569, now seen corresponding path program 5 times [2024-09-08 18:14:17,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 18:14:17,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206991003] [2024-09-08 18:14:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 18:14:17,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 18:14:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15