./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.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/popl20-proofs-counter-add-4-semi-Q67.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 34bb015d05a3d6b765805bee36bd4c1bc3f74929c05e61a51973bc9a4fc2cfc0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-25 18:46:21,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 18:46:21,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-25 18:46:21,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 18:46:21,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 18:46:21,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 18:46:21,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 18:46:21,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 18:46:21,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-25 18:46:21,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-25 18:46:21,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 18:46:21,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 18:46:21,208 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 18:46:21,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 18:46:21,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-25 18:46:21,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 18:46:21,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 18:46:21,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 18:46:21,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 18:46:21,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-25 18:46:21,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-25 18:46:21,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 18:46:21,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 18:46:21,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 18:46:21,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 18:46:21,215 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-25 18:46:21,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-25 18:46:21,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-25 18:46:21,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-25 18:46:21,216 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-25 18:46:21,216 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-25 18:46:21,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34bb015d05a3d6b765805bee36bd4c1bc3f74929c05e61a51973bc9a4fc2cfc0 [2024-10-25 18:46:21,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 18:46:21,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 18:46:21,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 18:46:21,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 18:46:21,444 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 18:46:21,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-10-25 18:46:22,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 18:46:22,874 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 18:46:22,875 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-10-25 18:46:22,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ff856ac27/d3058868652b4b8b8661a60b2a1290df/FLAG6fc1de6a5 [2024-10-25 18:46:23,282 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ff856ac27/d3058868652b4b8b8661a60b2a1290df [2024-10-25 18:46:23,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 18:46:23,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 18:46:23,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 18:46:23,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 18:46:23,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 18:46:23,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63841735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23, skipping insertion in model container [2024-10-25 18:46:23,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 18:46:23,494 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/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-10-25 18:46:23,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 18:46:23,507 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 18:46:23,525 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/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-10-25 18:46:23,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 18:46:23,546 INFO L204 MainTranslator]: Completed translation [2024-10-25 18:46:23,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23 WrapperNode [2024-10-25 18:46:23,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 18:46:23,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 18:46:23,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 18:46:23,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 18:46:23,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,573 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 114 [2024-10-25 18:46:23,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 18:46:23,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 18:46:23,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 18:46:23,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 18:46:23,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 18:46:23,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 18:46:23,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 18:46:23,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 18:46:23,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (1/1) ... [2024-10-25 18:46:23,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 18:46:23,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:23,650 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 18:46:23,652 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 18:46:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 18:46:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-25 18:46:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-25 18:46:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-25 18:46:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-25 18:46:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-25 18:46:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-25 18:46:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-25 18:46:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-25 18:46:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-25 18:46:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-25 18:46:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-25 18:46:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 18:46:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 18:46:23,695 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 18:46:23,784 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 18:46:23,785 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 18:46:23,919 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-25 18:46:23,919 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 18:46:24,059 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 18:46:24,060 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-25 18:46:24,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 06:46:24 BoogieIcfgContainer [2024-10-25 18:46:24,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 18:46:24,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-25 18:46:24,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-25 18:46:24,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-25 18:46:24,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 06:46:23" (1/3) ... [2024-10-25 18:46:24,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600e9dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 06:46:24, skipping insertion in model container [2024-10-25 18:46:24,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 06:46:23" (2/3) ... [2024-10-25 18:46:24,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600e9dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 06:46:24, skipping insertion in model container [2024-10-25 18:46:24,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 06:46:24" (3/3) ... [2024-10-25 18:46:24,069 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-10-25 18:46:24,083 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-25 18:46:24,083 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-25 18:46:24,083 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-25 18:46:24,118 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-25 18:46:24,150 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 18:46:24,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-25 18:46:24,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:24,153 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 18:46:24,154 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 18:46:24,187 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-25 18:46:24,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-25 18:46:24,202 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;@74507b42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 18:46:24,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-25 18:46:25,017 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 18:46:25,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:46:25,023 INFO L85 PathProgramCache]: Analyzing trace with hash -604330587, now seen corresponding path program 1 times [2024-10-25 18:46:25,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:46:25,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955182419] [2024-10-25 18:46:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:25,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:46:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:46:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:46:25,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955182419] [2024-10-25 18:46:25,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955182419] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:46:25,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703387363] [2024-10-25 18:46:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:25,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:25,685 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 18:46:25,687 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 18:46:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:25,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-25 18:46:25,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:46:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-25 18:46:25,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:46:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-25 18:46:26,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703387363] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:46:26,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:46:26,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 18 [2024-10-25 18:46:26,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074091701] [2024-10-25 18:46:26,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:46:26,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-25 18:46:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:46:26,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-25 18:46:26,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-25 18:46:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:26,133 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:46:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 18 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 18:46:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:26,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-25 18:46:27,094 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,SelfDestructingSolverStorable0 [2024-10-25 18:46:27,095 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 18:46:27,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:46:27,096 INFO L85 PathProgramCache]: Analyzing trace with hash -791974385, now seen corresponding path program 2 times [2024-10-25 18:46:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:46:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274600281] [2024-10-25 18:46:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:46:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 85 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-25 18:46:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:46:27,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274600281] [2024-10-25 18:46:27,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274600281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:46:27,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893700115] [2024-10-25 18:46:27,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-25 18:46:27,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:27,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:27,378 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 18:46:27,379 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 18:46:27,455 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-25 18:46:27,455 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:46:27,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-25 18:46:27,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:46:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 59 proven. 60 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-25 18:46:27,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:46:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 59 proven. 60 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-25 18:46:28,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893700115] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:46:28,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:46:28,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 26 [2024-10-25 18:46:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71212205] [2024-10-25 18:46:28,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:46:28,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-25 18:46:28,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:46:28,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-25 18:46:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2024-10-25 18:46:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:28,026 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:46:28,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.481481481481482) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 18:46:28,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:28,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:30,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-25 18:46:30,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:30,212 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 18:46:30,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:46:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1267116445, now seen corresponding path program 3 times [2024-10-25 18:46:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:46:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734372636] [2024-10-25 18:46:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:46:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 241 proven. 171 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2024-10-25 18:46:31,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:46:31,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734372636] [2024-10-25 18:46:31,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734372636] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:46:31,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918303894] [2024-10-25 18:46:31,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-25 18:46:31,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:31,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:31,044 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 18:46:31,044 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 18:46:31,150 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-10-25 18:46:31,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:46:31,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-25 18:46:31,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:46:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 89 proven. 742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:46:31,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:46:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 358 proven. 473 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:46:32,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918303894] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:46:32,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:46:32,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 30, 30] total 63 [2024-10-25 18:46:32,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009763602] [2024-10-25 18:46:32,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:46:32,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-25 18:46:32,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:46:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-25 18:46:32,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1046, Invalid=2986, Unknown=0, NotChecked=0, Total=4032 [2024-10-25 18:46:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:32,762 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:46:32,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.765625) internal successors, (305), 63 states have internal predecessors, (305), 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 18:46:32,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:32,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:32,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-10-25 18:46:37,606 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 18:46:37,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:37,795 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 18:46:37,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:46:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash 760638567, now seen corresponding path program 4 times [2024-10-25 18:46:37,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:46:37,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276475855] [2024-10-25 18:46:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:46:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3831 backedges. 191 proven. 886 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2024-10-25 18:46:40,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:46:40,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276475855] [2024-10-25 18:46:40,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276475855] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:46:40,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975195853] [2024-10-25 18:46:40,202 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-25 18:46:40,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:40,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-25 18:46:40,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-25 18:46:40,328 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-25 18:46:40,328 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:46:40,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-10-25 18:46:40,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:46:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3831 backedges. 191 proven. 830 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-10-25 18:46:40,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:46:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3831 backedges. 191 proven. 830 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-10-25 18:46:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975195853] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:46:40,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:46:40,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2024-10-25 18:46:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536723992] [2024-10-25 18:46:40,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:46:40,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-25 18:46:40,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:46:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-25 18:46:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-25 18:46:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:40,995 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:46:40,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 18:46:40,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:40,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:40,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2024-10-25 18:46:40,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-10-25 18:46:41,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:46:41,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-25 18:46:41,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:41,352 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 18:46:41,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:46:41,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1783968291, now seen corresponding path program 5 times [2024-10-25 18:46:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:46:41,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224020726] [2024-10-25 18:46:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:46:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:46:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:46:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3703 backedges. 443 proven. 1025 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2024-10-25 18:46:43,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:46:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224020726] [2024-10-25 18:46:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224020726] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:46:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369188125] [2024-10-25 18:46:43,219 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-25 18:46:43,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:46:43,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:46:43,221 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) [2024-10-25 18:46:43,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-25 18:46:43,373 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-10-25 18:46:43,374 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:46:43,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-10-25 18:46:43,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:46:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3703 backedges. 197 proven. 3504 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-25 18:46:45,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:46:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3703 backedges. 325 proven. 3376 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-25 18:46:48,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369188125] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:46:48,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:46:48,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 66, 66] total 144 [2024-10-25 18:46:48,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921337140] [2024-10-25 18:46:48,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:46:48,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-10-25 18:46:48,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:46:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-10-25 18:46:48,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4675, Invalid=16205, Unknown=0, NotChecked=0, Total=20880 [2024-10-25 18:46:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:46:48,595 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:46:48,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 3.9655172413793105) internal successors, (575), 144 states have internal predecessors, (575), 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 18:46:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:46:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2024-10-25 18:46:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2024-10-25 18:46:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:46:48,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:47:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:47:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-10-25 18:47:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:47:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:47:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2024-10-25 18:47:26,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-25 18:47:26,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:47:26,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 18:47:26,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:47:26,680 INFO L85 PathProgramCache]: Analyzing trace with hash 771338649, now seen corresponding path program 6 times [2024-10-25 18:47:26,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:47:26,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244235995] [2024-10-25 18:47:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:47:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:47:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:47:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 173 proven. 499 refuted. 0 times theorem prover too weak. 12009 trivial. 0 not checked. [2024-10-25 18:47:29,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:47:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244235995] [2024-10-25 18:47:29,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244235995] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:47:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585544797] [2024-10-25 18:47:29,891 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-25 18:47:29,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:47:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:47:29,895 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) [2024-10-25 18:47:29,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-25 18:47:30,156 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2024-10-25 18:47:30,156 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:47:30,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-10-25 18:47:30,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:47:33,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 173 proven. 12508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:47:33,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:47:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 230 proven. 12451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:47:38,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585544797] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:47:38,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:47:38,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 117, 117] total 237 [2024-10-25 18:47:38,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045242422] [2024-10-25 18:47:38,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:47:38,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 238 states [2024-10-25 18:47:38,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:47:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 238 interpolants. [2024-10-25 18:47:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11373, Invalid=45033, Unknown=0, NotChecked=0, Total=56406 [2024-10-25 18:47:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:47:38,637 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:47:38,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 238 states, 238 states have (on average 4.067226890756302) internal successors, (968), 237 states have internal predecessors, (968), 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 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2024-10-25 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 341 states. [2024-10-25 18:47:38,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:48:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:48:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-10-25 18:48:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:48:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:48:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-10-25 18:48:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:48:32,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-25 18:48:32,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-25 18:48:32,952 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 18:48:32,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:48:32,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1765436419, now seen corresponding path program 7 times [2024-10-25 18:48:32,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:48:32,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760729016] [2024-10-25 18:48:32,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:48:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:48:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:48:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16801 backedges. 133 proven. 512 refuted. 0 times theorem prover too weak. 16156 trivial. 0 not checked. [2024-10-25 18:48:37,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:48:37,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760729016] [2024-10-25 18:48:37,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760729016] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:48:37,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990500160] [2024-10-25 18:48:37,062 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-25 18:48:37,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:48:37,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:48:37,063 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) [2024-10-25 18:48:37,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-25 18:48:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:48:37,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 137 conjuncts are in the unsatisfiable core [2024-10-25 18:48:37,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:48:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 16801 backedges. 133 proven. 16668 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:48:41,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:48:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16801 backedges. 133 proven. 16668 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 18:48:47,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990500160] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:48:47,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:48:47,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 135, 135] total 273 [2024-10-25 18:48:47,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367661922] [2024-10-25 18:48:47,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:48:47,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 274 states [2024-10-25 18:48:47,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:48:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 274 interpolants. [2024-10-25 18:48:47,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14683, Invalid=60119, Unknown=0, NotChecked=0, Total=74802 [2024-10-25 18:48:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:48:47,942 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:48:47,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 274 states, 274 states have (on average 4.025547445255475) internal successors, (1103), 273 states have internal predecessors, (1103), 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 18:48:47,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:48:47,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2024-10-25 18:48:47,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:48:47,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:48:47,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-10-25 18:48:47,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:48:47,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:50:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2024-10-25 18:50:10,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-25 18:50:10,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:50:10,886 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 18:50:10,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:50:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1004413781, now seen corresponding path program 8 times [2024-10-25 18:50:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:50:10,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532148404] [2024-10-25 18:50:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:50:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:50:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:50:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 22244 backedges. 231 proven. 1109 refuted. 0 times theorem prover too weak. 20904 trivial. 0 not checked. [2024-10-25 18:50:20,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:50:20,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532148404] [2024-10-25 18:50:20,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532148404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:50:20,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921469584] [2024-10-25 18:50:20,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-25 18:50:20,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:50:20,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:50:20,916 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) [2024-10-25 18:50:20,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-25 18:50:21,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-25 18:50:21,163 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:50:21,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 155 conjuncts are in the unsatisfiable core [2024-10-25 18:50:21,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:50:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 22244 backedges. 677 proven. 21561 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-25 18:50:26,955 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:50:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22244 backedges. 752 proven. 21486 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-25 18:50:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921469584] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:50:41,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:50:41,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 153, 153] total 315 [2024-10-25 18:50:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996303161] [2024-10-25 18:50:41,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:50:41,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 316 states [2024-10-25 18:50:41,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:50:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 316 interpolants. [2024-10-25 18:50:41,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18347, Invalid=81193, Unknown=0, NotChecked=0, Total=99540 [2024-10-25 18:50:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:50:41,572 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:50:41,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 316 states, 316 states have (on average 3.9936708860759493) internal successors, (1262), 315 states have internal predecessors, (1262), 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 18:50:41,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-10-25 18:50:41,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2024-10-25 18:50:41,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:50:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:50:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-10-25 18:50:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:50:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 281 states. [2024-10-25 18:50:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:56:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-25 18:56:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2024-10-25 18:56:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 992 states. [2024-10-25 18:56:47,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-25 18:56:47,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:56:47,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-25 18:56:47,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 18:56:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash -871179861, now seen corresponding path program 9 times [2024-10-25 18:56:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 18:56:47,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022180960] [2024-10-25 18:56:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 18:56:47,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 18:56:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 18:57:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 93345 backedges. 466 proven. 2278 refuted. 0 times theorem prover too weak. 90601 trivial. 0 not checked. [2024-10-25 18:57:52,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 18:57:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022180960] [2024-10-25 18:57:52,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022180960] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-25 18:57:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150093268] [2024-10-25 18:57:52,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-25 18:57:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-25 18:57:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 18:57:52,438 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) [2024-10-25 18:57:52,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-25 18:57:55,532 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 153 check-sat command(s) [2024-10-25 18:57:55,532 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-25 18:57:55,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 3531 conjuncts, 306 conjuncts are in the unsatisfiable core [2024-10-25 18:57:55,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 18:58:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 93345 backedges. 2719 proven. 90601 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-25 18:58:14,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-25 18:59:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 93345 backedges. 2870 proven. 90450 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-25 18:59:03,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150093268] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-25 18:59:03,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-25 18:59:03,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 304, 304] total 618 [2024-10-25 18:59:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194024634] [2024-10-25 18:59:03,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-25 18:59:03,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 619 states [2024-10-25 18:59:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 18:59:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 619 interpolants. [2024-10-25 18:59:03,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93664, Invalid=288878, Unknown=0, NotChecked=0, Total=382542 [2024-10-25 18:59:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 18:59:03,927 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 18:59:03,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 619 states, 619 states have (on average 4.030694668820678) internal successors, (2495), 618 states have internal predecessors, (2495), 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 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 352 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 353 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 281 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 992 states. [2024-10-25 18:59:03,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15