./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a849f68 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/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-25 16:20:19,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 16:20:19,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-25 16:20:19,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 16:20:19,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 16:20:19,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 16:20:19,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 16:20:19,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 16:20:19,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-25 16:20:19,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-25 16:20:19,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 16:20:19,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 16:20:19,237 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 16:20:19,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 16:20:19,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-25 16:20:19,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 16:20:19,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 16:20:19,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 16:20:19,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 16:20:19,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-25 16:20:19,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-25 16:20:19,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-25 16:20:19,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 16:20:19,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 16:20:19,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 16:20:19,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 16:20:19,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 16:20:19,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 16:20:19,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-25 16:20:19,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-25 16:20:19,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 16:20:19,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 16:20:19,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-25 16:20:19,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-25 16:20:19,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 16:20:19,248 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-25 16:20:19,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-25 16:20:19,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-25 16:20:19,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-25 16:20:19,249 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-25 16:20:19,249 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-25 16:20:19,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 [2024-10-25 16:20:19,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 16:20:19,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 16:20:19,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 16:20:19,489 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 16:20:19,489 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 16:20:19,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-10-25 16:20:20,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 16:20:21,067 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 16:20:21,068 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-10-25 16:20:21,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d0a3b902a/a3d55e7cc160429d86cd3e72bd1b5ac9/FLAG7856d9d08 [2024-10-25 16:20:21,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d0a3b902a/a3d55e7cc160429d86cd3e72bd1b5ac9 [2024-10-25 16:20:21,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 16:20:21,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 16:20:21,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 16:20:21,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 16:20:21,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 16:20:21,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fdb3485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21, skipping insertion in model container [2024-10-25 16:20:21,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 16:20:21,291 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x6.wvr.c[2505,2518] [2024-10-25 16:20:21,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 16:20:21,303 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 16:20:21,323 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x6.wvr.c[2505,2518] [2024-10-25 16:20:21,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 16:20:21,340 INFO L204 MainTranslator]: Completed translation [2024-10-25 16:20:21,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21 WrapperNode [2024-10-25 16:20:21,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 16:20:21,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 16:20:21,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 16:20:21,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 16:20:21,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,374 INFO L138 Inliner]: procedures = 19, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-10-25 16:20:21,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 16:20:21,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 16:20:21,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 16:20:21,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 16:20:21,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 16:20:21,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 16:20:21,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 16:20:21,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 16:20:21,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (1/1) ... [2024-10-25 16:20:21,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 16:20:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 16:20:21,442 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) [2024-10-25 16:20:21,444 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 [2024-10-25 16:20:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 16:20:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-25 16:20:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-25 16:20:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-25 16:20:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-25 16:20:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-25 16:20:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-25 16:20:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-25 16:20:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-25 16:20:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-25 16:20:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 16:20:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 16:20:21,496 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-25 16:20:21,616 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 16:20:21,618 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 16:20:21,851 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-25 16:20:21,851 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 16:20:22,027 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 16:20:22,027 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-25 16:20:22,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 04:20:22 BoogieIcfgContainer [2024-10-25 16:20:22,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 16:20:22,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-25 16:20:22,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-25 16:20:22,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-25 16:20:22,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 04:20:21" (1/3) ... [2024-10-25 16:20:22,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfc5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 04:20:22, skipping insertion in model container [2024-10-25 16:20:22,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 04:20:21" (2/3) ... [2024-10-25 16:20:22,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfc5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 04:20:22, skipping insertion in model container [2024-10-25 16:20:22,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 04:20:22" (3/3) ... [2024-10-25 16:20:22,042 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2024-10-25 16:20:22,061 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-25 16:20:22,061 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-25 16:20:22,061 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-25 16:20:22,107 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-25 16:20:22,154 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 16:20:22,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-25 16:20:22,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 16:20:22,157 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) [2024-10-25 16:20:22,159 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 [2024-10-25 16:20:22,188 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-25 16:20:22,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-25 16:20:22,206 INFO L333 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4469eb30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 16:20:22,206 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-25 16:20:22,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 16:20:22,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 16:20:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -387186802, now seen corresponding path program 1 times [2024-10-25 16:20:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 16:20:22,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395421105] [2024-10-25 16:20:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:20:22,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 16:20:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 16:20:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-25 16:20:23,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 16:20:23,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395421105] [2024-10-25 16:20:23,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395421105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 16:20:23,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 16:20:23,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 16:20:23,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445773534] [2024-10-25 16:20:23,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 16:20:23,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-25 16:20:23,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 16:20:23,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-25 16:20:23,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-25 16:20:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:23,336 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 16:20:23,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-10-25 16:20:23,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:20:23,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-25 16:20:23,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 16:20:23,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 16:20:23,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1417942700, now seen corresponding path program 1 times [2024-10-25 16:20:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 16:20:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522312011] [2024-10-25 16:20:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:20:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 16:20:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 16:20:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-25 16:20:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 16:20:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522312011] [2024-10-25 16:20:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522312011] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 16:20:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12992525] [2024-10-25 16:20:23,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:20:23,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 16:20:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 16:20:23,856 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) [2024-10-25 16:20:23,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-25 16:20:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 16:20:24,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-25 16:20:24,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 16:20:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-25 16:20:24,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 16:20:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-25 16:20:25,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12992525] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 16:20:25,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 16:20:25,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-25 16:20:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560823892] [2024-10-25 16:20:25,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 16:20:25,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-25 16:20:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 16:20:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-25 16:20:25,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-25 16:20:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:25,086 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 16:20:25,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 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) [2024-10-25 16:20:25,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:20:25,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:29,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:20:29,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-25 16:20:29,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-25 16:20:29,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-25 16:20:29,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 16:20:29,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 16:20:29,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1024235157, now seen corresponding path program 2 times [2024-10-25 16:20:29,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 16:20:29,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561717373] [2024-10-25 16:20:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:20:29,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 16:20:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 16:20:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-25 16:20:29,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 16:20:29,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561717373] [2024-10-25 16:20:29,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561717373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 16:20:29,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350746992] [2024-10-25 16:20:29,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-25 16:20:29,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 16:20:29,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 16:20:29,640 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) [2024-10-25 16:20:29,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-25 16:20:30,199 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-25 16:20:30,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 16:20:30,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-25 16:20:30,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 16:20:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 16:20:32,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 16:20:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 16:20:36,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350746992] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 16:20:36,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 16:20:36,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 27 [2024-10-25 16:20:36,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951048590] [2024-10-25 16:20:36,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 16:20:36,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-25 16:20:36,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 16:20:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-25 16:20:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2024-10-25 16:20:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:36,576 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 16:20:36,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 27 states have internal predecessors, (96), 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) [2024-10-25 16:20:36,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:20:36,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-25 16:20:36,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:20:46,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:21:00,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:21:02,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:21:03,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:21:19,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:21:26,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-25 16:22:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:22:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-25 16:22:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-10-25 16:22:31,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-25 16:22:31,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 16:22:31,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 16:22:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 16:22:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1340460564, now seen corresponding path program 3 times [2024-10-25 16:22:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 16:22:31,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720635796] [2024-10-25 16:22:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:22:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 16:22:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 16:22:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 123 proven. 122 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-25 16:22:32,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 16:22:32,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720635796] [2024-10-25 16:22:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720635796] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 16:22:32,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34907822] [2024-10-25 16:22:32,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-25 16:22:32,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 16:22:32,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 16:22:32,395 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) [2024-10-25 16:22:32,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-25 16:22:35,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-25 16:22:35,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 16:22:35,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-25 16:22:35,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 16:22:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 224 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-25 16:22:46,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 16:22:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 127 proven. 105 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-25 16:22:48,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34907822] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 16:22:48,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 16:22:48,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19, 19] total 45 [2024-10-25 16:22:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15558266] [2024-10-25 16:22:48,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 16:22:48,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-25 16:22:48,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 16:22:48,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-25 16:22:48,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-10-25 16:22:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:22:48,570 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 16:22:48,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.311111111111111) internal successors, (149), 45 states have internal predecessors, (149), 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) [2024-10-25 16:22:48,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:22:48,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-25 16:22:48,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2024-10-25 16:22:48,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 16:27:18,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-25 16:27:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-25 16:27:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2024-10-25 16:27:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-10-25 16:27:18,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-25 16:27:18,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 16:27:18,348 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 16:27:18,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 16:27:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash 108602418, now seen corresponding path program 4 times [2024-10-25 16:27:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 16:27:18,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202156775] [2024-10-25 16:27:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 16:27:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15