./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0a77b23de3110741cf9e339cfb9f72e965f6bc6bc082cff0044fedc6c4916cfb --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 00:03:09,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 00:03:09,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-24 00:03:09,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 00:03:09,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 00:03:09,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 00:03:09,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 00:03:09,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 00:03:09,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 00:03:09,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 00:03:09,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 00:03:09,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 00:03:09,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 00:03:09,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 00:03:09,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 00:03:09,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 00:03:09,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 00:03:09,493 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 00:03:09,493 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 -> /storage/repos/ultimate-jdk21/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 -> 0a77b23de3110741cf9e339cfb9f72e965f6bc6bc082cff0044fedc6c4916cfb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-24 00:03:09,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 00:03:09,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 00:03:09,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 00:03:09,722 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 00:03:09,722 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 00:03:09,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2025-01-24 00:03:10,883 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/892d7d4b7/ce4d8d5a7736433691d1efda4afc5dbd/FLAG74d65f81c [2025-01-24 00:03:11,113 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 00:03:11,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2025-01-24 00:03:11,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/892d7d4b7/ce4d8d5a7736433691d1efda4afc5dbd/FLAG74d65f81c [2025-01-24 00:03:11,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/892d7d4b7/ce4d8d5a7736433691d1efda4afc5dbd [2025-01-24 00:03:11,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 00:03:11,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 00:03:11,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 00:03:11,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 00:03:11,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 00:03:11,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:03:11" (1/1) ... [2025-01-24 00:03:11,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1e278c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:11, skipping insertion in model container [2025-01-24 00:03:11,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:03:11" (1/1) ... [2025-01-24 00:03:11,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 00:03:11,928 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63614,63627] [2025-01-24 00:03:11,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 00:03:11,961 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 00:03:12,072 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63614,63627] [2025-01-24 00:03:12,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 00:03:12,151 INFO L204 MainTranslator]: Completed translation [2025-01-24 00:03:12,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12 WrapperNode [2025-01-24 00:03:12,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 00:03:12,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 00:03:12,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 00:03:12,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 00:03:12,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,268 INFO L138 Inliner]: procedures = 396, calls = 206, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3772 [2025-01-24 00:03:12,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 00:03:12,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 00:03:12,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 00:03:12,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 00:03:12,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,408 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 00:03:12,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 00:03:12,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 00:03:12,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 00:03:12,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (1/1) ... [2025-01-24 00:03:12,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 00:03:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 00:03:12,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-24 00:03:12,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2025-01-24 00:03:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2025-01-24 00:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2025-01-24 00:03:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2025-01-24 00:03:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-24 00:03:12,541 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 00:03:12,832 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 00:03:12,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 00:03:15,488 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 00:03:15,488 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 00:03:17,763 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 00:03:17,764 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-24 00:03:17,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:03:17 BoogieIcfgContainer [2025-01-24 00:03:17,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 00:03:17,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 00:03:17,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 00:03:17,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 00:03:17,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:03:11" (1/3) ... [2025-01-24 00:03:17,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a57c1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:03:17, skipping insertion in model container [2025-01-24 00:03:17,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:03:12" (2/3) ... [2025-01-24 00:03:17,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a57c1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:03:17, skipping insertion in model container [2025-01-24 00:03:17,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:03:17" (3/3) ... [2025-01-24 00:03:17,772 INFO L128 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2025-01-24 00:03:17,784 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 00:03:17,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elimination_backoff_stack.i that has 8 procedures, 409 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-01-24 00:03:17,785 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 00:03:18,492 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-24 00:03:18,551 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 00:03:18,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 00:03:18,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 00:03:18,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-24 00:03:18,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-24 00:03:18,895 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 00:03:18,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == instrPop3Thread1of1ForFork3 ======== [2025-01-24 00:03:18,917 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;@3ebc0666, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 00:03:18,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-24 00:03:50,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:03:50,717 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:03:50,717 INFO L139 ounterexampleChecker]: Examining path program with hash -273392060, occurence #1 [2025-01-24 00:03:50,717 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:03:50,717 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:03:50,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:03:50,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1002006877, now seen corresponding path program 1 times [2025-01-24 00:03:50,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:03:50,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514170074] [2025-01-24 00:03:50,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:03:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:03:50,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-24 00:03:50,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-24 00:03:50,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:03:50,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:03:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:03:51,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:03:51,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514170074] [2025-01-24 00:03:51,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514170074] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:03:51,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:03:51,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 00:03:51,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639683417] [2025-01-24 00:03:51,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:03:51,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 00:03:51,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:03:51,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 00:03:51,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 00:03:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:51,417 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:03:51,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) [2025-01-24 00:03:51,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:51,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-24 00:03:51,660 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:03:51,661 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:03:51,661 INFO L139 ounterexampleChecker]: Examining path program with hash 613955697, occurence #1 [2025-01-24 00:03:51,661 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:03:51,661 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:03:51,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:03:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1421527601, now seen corresponding path program 1 times [2025-01-24 00:03:51,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:03:51,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459382740] [2025-01-24 00:03:51,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:03:51,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:03:51,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-24 00:03:51,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-24 00:03:51,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:03:51,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:03:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:03:51,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:03:51,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459382740] [2025-01-24 00:03:51,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459382740] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:03:51,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:03:51,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 00:03:51,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831097542] [2025-01-24 00:03:51,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:03:51,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 00:03:51,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:03:51,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 00:03:51,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 00:03:51,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:51,915 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:03:51,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 00:03:51,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:51,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-24 00:03:52,097 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:03:52,097 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:03:52,097 INFO L139 ounterexampleChecker]: Examining path program with hash -188829131, occurence #1 [2025-01-24 00:03:52,097 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:03:52,097 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:03:52,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:03:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1059839677, now seen corresponding path program 1 times [2025-01-24 00:03:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:03:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902651078] [2025-01-24 00:03:52,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:03:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:03:52,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-24 00:03:52,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-24 00:03:52,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:03:52,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:03:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:03:52,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:03:52,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902651078] [2025-01-24 00:03:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902651078] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:03:52,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:03:52,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 00:03:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036080447] [2025-01-24 00:03:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:03:52,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 00:03:52,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:03:52,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 00:03:52,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 00:03:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:52,281 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:03:52,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2025-01-24 00:03:52,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:52,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-24 00:03:52,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:03:52,478 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:03:52,478 INFO L139 ounterexampleChecker]: Examining path program with hash 22273712, occurence #1 [2025-01-24 00:03:52,478 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:03:52,478 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:03:52,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:03:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2032328823, now seen corresponding path program 1 times [2025-01-24 00:03:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:03:52,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161935138] [2025-01-24 00:03:52,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:03:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:03:52,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-24 00:03:53,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-24 00:03:53,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:03:53,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:03:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:03:55,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:03:55,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161935138] [2025-01-24 00:03:55,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161935138] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:03:55,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:03:55,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-24 00:03:55,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047339565] [2025-01-24 00:03:55,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:03:55,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-24 00:03:55,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:03:55,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-24 00:03:55,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-24 00:03:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:55,454 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:03:55,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2025-01-24 00:03:55,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:03:55,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-24 00:03:55,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:03:55,807 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:03:55,807 INFO L139 ounterexampleChecker]: Examining path program with hash 1567072823, occurence #1 [2025-01-24 00:03:55,807 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:03:55,807 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:03:55,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:03:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash -512429321, now seen corresponding path program 1 times [2025-01-24 00:03:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:03:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302354760] [2025-01-24 00:03:55,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:03:55,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:03:55,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-24 00:03:56,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-24 00:03:56,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:03:56,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:03:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:03:59,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:03:59,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302354760] [2025-01-24 00:03:59,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302354760] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:03:59,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:03:59,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-24 00:03:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690275740] [2025-01-24 00:03:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:03:59,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-24 00:03:59,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:03:59,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-24 00:03:59,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-24 00:03:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:03:59,604 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:03:59,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 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) [2025-01-24 00:03:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:03:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:03:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:00,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-24 00:04:00,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:00,572 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:00,572 INFO L139 ounterexampleChecker]: Examining path program with hash -479096653, occurence #1 [2025-01-24 00:04:00,573 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:00,573 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:00,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2058660073, now seen corresponding path program 1 times [2025-01-24 00:04:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739785263] [2025-01-24 00:04:00,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:00,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-24 00:04:00,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-24 00:04:00,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:00,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739785263] [2025-01-24 00:04:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739785263] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:03,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:03,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-01-24 00:04:03,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32328767] [2025-01-24 00:04:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:03,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-24 00:04:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:03,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-24 00:04:03,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2025-01-24 00:04:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:03,569 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:03,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 15 states have internal predecessors, (68), 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) [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:04,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-24 00:04:04,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:04,352 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:04,352 INFO L139 ounterexampleChecker]: Examining path program with hash 1574031832, occurence #1 [2025-01-24 00:04:04,352 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:04,352 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:04,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:04,352 INFO L85 PathProgramCache]: Analyzing trace with hash -94242929, now seen corresponding path program 1 times [2025-01-24 00:04:04,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:04,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702315107] [2025-01-24 00:04:04,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:04,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:04,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-24 00:04:04,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-24 00:04:04,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:04,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:05,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:05,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702315107] [2025-01-24 00:04:05,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702315107] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:05,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:05,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-24 00:04:05,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814594958] [2025-01-24 00:04:05,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:05,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-24 00:04:05,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:05,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-24 00:04:05,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-24 00:04:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:05,756 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:05,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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) [2025-01-24 00:04:05,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:05,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:05,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:05,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:05,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:05,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:05,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:07,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-24 00:04:07,479 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:07,479 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:07,480 INFO L139 ounterexampleChecker]: Examining path program with hash 317800889, occurence #1 [2025-01-24 00:04:07,480 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:07,480 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:07,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1803476547, now seen corresponding path program 1 times [2025-01-24 00:04:07,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:07,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460694521] [2025-01-24 00:04:07,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:07,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:07,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-24 00:04:07,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-24 00:04:07,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:07,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:08,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:08,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460694521] [2025-01-24 00:04:08,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460694521] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:08,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-24 00:04:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89062908] [2025-01-24 00:04:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-24 00:04:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:08,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-24 00:04:08,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-24 00:04:08,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:08,012 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:08,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 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) [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:08,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:08,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:08,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:08,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-24 00:04:08,353 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:08,353 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:08,354 INFO L139 ounterexampleChecker]: Examining path program with hash 1205148646, occurence #1 [2025-01-24 00:04:08,354 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:08,354 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:08,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:08,354 INFO L85 PathProgramCache]: Analyzing trace with hash 488673017, now seen corresponding path program 1 times [2025-01-24 00:04:08,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:08,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455005786] [2025-01-24 00:04:08,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:08,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:08,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-24 00:04:08,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-24 00:04:08,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:08,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:08,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455005786] [2025-01-24 00:04:08,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455005786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:08,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:08,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-24 00:04:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416511667] [2025-01-24 00:04:08,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:08,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-24 00:04:08,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:08,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-24 00:04:08,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-24 00:04:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:08,998 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:08,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 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) [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:11,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-24 00:04:11,510 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:11,510 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:11,510 INFO L139 ounterexampleChecker]: Examining path program with hash -334714980, occurence #1 [2025-01-24 00:04:11,510 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:11,510 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:11,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:11,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1505729122, now seen corresponding path program 1 times [2025-01-24 00:04:11,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:11,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626524889] [2025-01-24 00:04:11,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:11,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:11,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-24 00:04:11,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-24 00:04:11,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:11,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:14,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626524889] [2025-01-24 00:04:14,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626524889] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:14,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:14,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-24 00:04:14,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712378502] [2025-01-24 00:04:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:14,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-24 00:04:14,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:14,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-24 00:04:14,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-01-24 00:04:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:14,439 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:14,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 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) [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:14,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:15,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-24 00:04:15,082 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:15,082 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:15,082 INFO L139 ounterexampleChecker]: Examining path program with hash -1972674432, occurence #1 [2025-01-24 00:04:15,082 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:15,082 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:15,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:15,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1661867362, now seen corresponding path program 1 times [2025-01-24 00:04:15,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:15,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903073975] [2025-01-24 00:04:15,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:15,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:15,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-24 00:04:15,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-24 00:04:15,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:15,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:19,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:19,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903073975] [2025-01-24 00:04:19,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903073975] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:19,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:19,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2025-01-24 00:04:19,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217096144] [2025-01-24 00:04:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:19,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-24 00:04:19,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:19,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-24 00:04:19,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2025-01-24 00:04:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:19,285 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:19,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 20 states have internal predecessors, (72), 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) [2025-01-24 00:04:19,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:19,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:19,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:19,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:19,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:19,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:20,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-24 00:04:20,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:20,743 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:20,744 INFO L139 ounterexampleChecker]: Examining path program with hash -1965715423, occurence #1 [2025-01-24 00:04:20,744 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:20,744 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:20,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2050763578, now seen corresponding path program 1 times [2025-01-24 00:04:20,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:20,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174969821] [2025-01-24 00:04:20,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:20,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:20,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-24 00:04:21,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-24 00:04:21,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:21,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:22,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:22,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174969821] [2025-01-24 00:04:22,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174969821] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:22,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:22,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-24 00:04:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503608379] [2025-01-24 00:04:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:22,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-24 00:04:22,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:22,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-24 00:04:22,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-24 00:04:22,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:22,405 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:22,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 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) [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:22,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:22,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:22,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:22,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:22,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:22,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:24,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-24 00:04:24,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:24,162 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:24,162 INFO L139 ounterexampleChecker]: Examining path program with hash -1195670981, occurence #1 [2025-01-24 00:04:24,162 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:24,162 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:24,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:24,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1492433563, now seen corresponding path program 1 times [2025-01-24 00:04:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:24,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054448898] [2025-01-24 00:04:24,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:24,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-24 00:04:24,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-24 00:04:24,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:24,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:24,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054448898] [2025-01-24 00:04:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054448898] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:24,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-24 00:04:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172326435] [2025-01-24 00:04:24,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:24,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-24 00:04:24,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:24,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-24 00:04:24,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-24 00:04:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:24,623 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:24,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 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) [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:24,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:25,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-24 00:04:25,019 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:25,019 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:25,019 INFO L139 ounterexampleChecker]: Examining path program with hash -1407407022, occurence #1 [2025-01-24 00:04:25,019 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:25,019 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:25,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:25,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1652882383, now seen corresponding path program 1 times [2025-01-24 00:04:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:25,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034263562] [2025-01-24 00:04:25,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:25,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-24 00:04:25,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-24 00:04:25,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:25,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:25,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034263562] [2025-01-24 00:04:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034263562] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-01-24 00:04:25,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670646793] [2025-01-24 00:04:25,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:25,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-24 00:04:25,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:25,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-24 00:04:25,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-01-24 00:04:25,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:25,807 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:25,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 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) [2025-01-24 00:04:25,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:25,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:25,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 00:04:27,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-24 00:04:27,935 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:27,935 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:27,936 INFO L139 ounterexampleChecker]: Examining path program with hash 894891838, occurence #1 [2025-01-24 00:04:27,936 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:27,936 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:27,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:27,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1380348184, now seen corresponding path program 1 times [2025-01-24 00:04:27,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:27,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939039395] [2025-01-24 00:04:27,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:27,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:27,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-24 00:04:28,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-24 00:04:28,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:28,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:33,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:33,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939039395] [2025-01-24 00:04:33,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939039395] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:33,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:33,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2025-01-24 00:04:33,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678141372] [2025-01-24 00:04:33,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:33,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-24 00:04:33,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:33,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-24 00:04:33,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=650, Unknown=0, NotChecked=0, Total=812 [2025-01-24 00:04:33,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:33,290 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:33,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 00:04:33,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 00:04:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-24 00:04:35,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-24 00:04:35,143 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop3Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-24 00:04:35,143 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 00:04:35,143 INFO L139 ounterexampleChecker]: Examining path program with hash -1346946973, occurence #1 [2025-01-24 00:04:35,143 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 00:04:35,143 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 00:04:35,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 00:04:35,143 INFO L85 PathProgramCache]: Analyzing trace with hash -859169362, now seen corresponding path program 1 times [2025-01-24 00:04:35,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 00:04:35,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025464880] [2025-01-24 00:04:35,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 00:04:35,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 00:04:35,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-24 00:04:35,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-24 00:04:35,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 00:04:35,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 00:04:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 00:04:37,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 00:04:37,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025464880] [2025-01-24 00:04:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025464880] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 00:04:37,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 00:04:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-24 00:04:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685558458] [2025-01-24 00:04:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 00:04:37,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-24 00:04:37,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 00:04:37,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-24 00:04:37,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-24 00:04:37,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 00:04:37,162 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 00:04:37,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 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) [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-24 00:04:37,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15