./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca --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 e872da92455c9ab0fe125378ae9802f1d4dfc806cea229583fb74f8b758e929f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:33:13,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:33:13,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:33:13,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:33:13,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:33:13,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:33:13,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:33:13,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:33:13,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:33:13,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:33:13,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:33:13,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:33:13,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:33:13,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:33:13,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:33:13,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:33:13,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:33:13,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:33:13,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:33:13,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:33:13,342 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:33:13,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca 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 -> e872da92455c9ab0fe125378ae9802f1d4dfc806cea229583fb74f8b758e929f [2024-11-23 11:33:13,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:33:13,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:33:13,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:33:13,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:33:13,709 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:33:13,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i [2024-11-23 11:33:16,956 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/data/7a713a5c0/ae28efdf250941ceae9d2f7c238f4bcd/FLAG1769cece1 [2024-11-23 11:33:17,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:33:17,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i [2024-11-23 11:33:17,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/data/7a713a5c0/ae28efdf250941ceae9d2f7c238f4bcd/FLAG1769cece1 [2024-11-23 11:33:17,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/data/7a713a5c0/ae28efdf250941ceae9d2f7c238f4bcd [2024-11-23 11:33:17,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:33:17,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:33:17,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:33:17,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:33:17,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:33:17,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:17" (1/1) ... [2024-11-23 11:33:17,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bead49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:17, skipping insertion in model container [2024-11-23 11:33:17,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:17" (1/1) ... [2024-11-23 11:33:17,652 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:33:17,904 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i[995,1008] [2024-11-23 11:33:18,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:33:18,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:33:18,228 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/sv-benchmarks/c/pthread-wmm/safe000_power.oepc.i[995,1008] [2024-11-23 11:33:18,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:33:18,360 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:33:18,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18 WrapperNode [2024-11-23 11:33:18,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:33:18,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:33:18,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:33:18,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:33:18,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,426 INFO L138 Inliner]: procedures = 175, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2024-11-23 11:33:18,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:33:18,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:33:18,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:33:18,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:33:18,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,459 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:33:18,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:33:18,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:33:18,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:33:18,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (1/1) ... [2024-11-23 11:33:18,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:33:18,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:18,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:33:18,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:33:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:33:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:33:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:33:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:33:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-23 11:33:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-23 11:33:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-23 11:33:18,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-23 11:33:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-23 11:33:18,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-23 11:33:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:33:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:33:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:33:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:33:18,565 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:33:18,794 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:33:18,797 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:33:19,519 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:33:19,521 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:33:20,185 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:33:20,186 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 11:33:20,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:20 BoogieIcfgContainer [2024-11-23 11:33:20,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:33:20,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:33:20,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:33:20,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:33:20,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:33:17" (1/3) ... [2024-11-23 11:33:20,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15627113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:20, skipping insertion in model container [2024-11-23 11:33:20,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:18" (2/3) ... [2024-11-23 11:33:20,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15627113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:20, skipping insertion in model container [2024-11-23 11:33:20,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:20" (3/3) ... [2024-11-23 11:33:20,203 INFO L128 eAbstractionObserver]: Analyzing ICFG safe000_power.oepc.i [2024-11-23 11:33:20,222 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:33:20,227 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe000_power.oepc.i that has 4 procedures, 38 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 11:33:20,227 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:33:20,353 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 11:33:20,429 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:33:20,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:33:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:20,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:33:20,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a273fc8-1a3f-4e01-b646-8321d4681740/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:33:20,563 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:33:20,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:33:20,592 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;@68929ba7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:33:20,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 11:34:27,723 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 1 more)] === [2024-11-23 11:34:27,723 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:27,724 INFO L139 ounterexampleChecker]: Examining path program with hash 2135786507, occurence #1 [2024-11-23 11:34:27,724 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:34:27,724 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:27,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:27,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2019036552, now seen corresponding path program 1 times [2024-11-23 11:34:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:27,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497862336] [2024-11-23 11:34:27,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:34:27,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:34:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:29,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:34:29,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497862336] [2024-11-23 11:34:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497862336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:34:29,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:34:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:34:29,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196758415] [2024-11-23 11:34:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:34:29,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:34:29,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:29,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:34:29,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 11:34:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:29,260 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:29,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:34:29,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:24,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:40:24,142 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 1 more)] === [2024-11-23 11:40:24,142 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:24,142 INFO L139 ounterexampleChecker]: Examining path program with hash 451061689, occurence #1 [2024-11-23 11:40:24,142 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:24,142 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:24,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -766210349, now seen corresponding path program 1 times [2024-11-23 11:40:24,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:40:24,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729473395] [2024-11-23 11:40:24,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:40:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:40:25,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:40:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729473395] [2024-11-23 11:40:25,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729473395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:40:25,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:40:25,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:40:25,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233917010] [2024-11-23 11:40:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:40:25,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:40:25,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:40:25,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:40:25,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 11:40:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:25,262 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:25,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:40:25,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:25,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:41:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:41:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:41:53,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:41:53,341 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 1 more)] === [2024-11-23 11:41:53,341 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:41:53,344 INFO L139 ounterexampleChecker]: Examining path program with hash 724245221, occurence #1 [2024-11-23 11:41:53,344 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:41:53,344 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:41:53,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:41:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1909582899, now seen corresponding path program 2 times [2024-11-23 11:41:53,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:41:53,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989941670] [2024-11-23 11:41:53,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:41:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:41:53,504 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:41:53,504 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:41:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:41:55,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:41:55,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989941670] [2024-11-23 11:41:55,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989941670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:41:55,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:41:55,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 11:41:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379383838] [2024-11-23 11:41:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:41:55,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:41:55,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:41:55,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:41:55,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 11:41:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:41:55,267 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:41:55,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:41:55,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:41:55,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:41:55,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:44:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:44:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:44:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:44:38,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 11:44:38,567 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 1 more)] === [2024-11-23 11:44:38,567 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:44:38,567 INFO L139 ounterexampleChecker]: Examining path program with hash 393873536, occurence #1 [2024-11-23 11:44:38,567 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:44:38,567 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:44:38,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:44:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1505128209, now seen corresponding path program 3 times [2024-11-23 11:44:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:44:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151157733] [2024-11-23 11:44:38,568 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:44:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:44:38,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 11:44:38,662 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:44:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:44:39,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:44:39,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151157733] [2024-11-23 11:44:39,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151157733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:44:39,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:44:39,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 11:44:39,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228701866] [2024-11-23 11:44:39,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:44:39,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:44:39,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:44:39,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:44:39,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 11:44:39,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:44:39,969 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:44:39,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:44:39,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:44:39,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:44:39,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:44:39,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.