./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/recHanoi01.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi01.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 03:10:43,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 03:10:43,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 03:10:43,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 03:10:43,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 03:10:43,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 03:10:43,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 03:10:43,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 03:10:43,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 03:10:43,685 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 03:10:43,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 03:10:43,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 03:10:43,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 03:10:43,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 03:10:43,686 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 03:10:43,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 03:10:43,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 03:10:43,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 03:10:43,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 03:10:43,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 03:10:43,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 03:10:43,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 03:10:43,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 03:10:43,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 03:10:43,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 03:10:43,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 03:10:43,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 03:10:43,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 03:10:43,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 03:10:43,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 03:10:43,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 03:10:43,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 03:10:43,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 03:10:43,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 03:10:43,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 03:10:43,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 03:10:43,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 03:10:43,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 03:10:43,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 03:10:43,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 03:10:43,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 03:10:43,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 03:10:43,696 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-13 03:10:43,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 03:10:43,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 03:10:43,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 03:10:43,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 03:10:43,894 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 03:10:43,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/recHanoi01.c [2024-09-13 03:10:45,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 03:10:45,114 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 03:10:45,251 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 03:10:45,252 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c [2024-09-13 03:10:45,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/efe01a2d3/c735af03259143c5913b490ebac8a100/FLAG350cfc33f [2024-09-13 03:10:45,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/efe01a2d3/c735af03259143c5913b490ebac8a100 [2024-09-13 03:10:45,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 03:10:45,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-13 03:10:45,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 03:10:45,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 03:10:45,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 03:10:45,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8413bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45, skipping insertion in model container [2024-09-13 03:10:45,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 03:10:45,405 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c[1213,1226] [2024-09-13 03:10:45,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 03:10:45,415 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 03:10:45,426 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c[1213,1226] [2024-09-13 03:10:45,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 03:10:45,438 INFO L204 MainTranslator]: Completed translation [2024-09-13 03:10:45,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45 WrapperNode [2024-09-13 03:10:45,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 03:10:45,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 03:10:45,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 03:10:45,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 03:10:45,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,473 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-13 03:10:45,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 03:10:45,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 03:10:45,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 03:10:45,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 03:10:45,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,516 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 03:10:45,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 03:10:45,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 03:10:45,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 03:10:45,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 03:10:45,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (1/1) ... [2024-09-13 03:10:45,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 03:10:45,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:45,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 03:10:45,573 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 03:10:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 03:10:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2024-09-13 03:10:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2024-09-13 03:10:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-09-13 03:10:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-09-13 03:10:45,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 03:10:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 03:10:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 03:10:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 03:10:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 03:10:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 03:10:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 03:10:45,663 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 03:10:45,665 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 03:10:45,796 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-13 03:10:45,796 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 03:10:45,818 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 03:10:45,819 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 03:10:45,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 03:10:45 BoogieIcfgContainer [2024-09-13 03:10:45,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 03:10:45,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 03:10:45,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 03:10:45,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 03:10:45,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 03:10:45" (1/3) ... [2024-09-13 03:10:45,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f60a235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 03:10:45, skipping insertion in model container [2024-09-13 03:10:45,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:10:45" (2/3) ... [2024-09-13 03:10:45,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f60a235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 03:10:45, skipping insertion in model container [2024-09-13 03:10:45,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 03:10:45" (3/3) ... [2024-09-13 03:10:45,827 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2024-09-13 03:10:45,839 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 03:10:45,839 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-13 03:10:45,885 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 03:10:45,889 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@292c235d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 03:10:45,890 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-13 03:10:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-13 03:10:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-13 03:10:45,900 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:45,900 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:45,900 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:45,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1116782284, now seen corresponding path program 1 times [2024-09-13 03:10:45,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:45,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969029687] [2024-09-13 03:10:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-13 03:10:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 03:10:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969029687] [2024-09-13 03:10:46,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969029687] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 03:10:46,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 03:10:46,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-13 03:10:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986806823] [2024-09-13 03:10:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 03:10:46,152 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-13 03:10:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-13 03:10:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-13 03:10:46,168 INFO L87 Difference]: Start difference. First operand has 28 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-13 03:10:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:46,292 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-09-13 03:10:46,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-13 03:10:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2024-09-13 03:10:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:46,301 INFO L225 Difference]: With dead ends: 47 [2024-09-13 03:10:46,301 INFO L226 Difference]: Without dead ends: 26 [2024-09-13 03:10:46,303 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-13 03:10:46,305 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:46,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 76 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:10:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-09-13 03:10:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-09-13 03:10:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-13 03:10:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-09-13 03:10:46,341 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2024-09-13 03:10:46,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:46,342 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-09-13 03:10:46,342 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-13 03:10:46,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-09-13 03:10:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-13 03:10:46,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:46,346 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:46,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 03:10:46,346 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:46,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash -715877671, now seen corresponding path program 1 times [2024-09-13 03:10:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816402625] [2024-09-13 03:10:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-13 03:10:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-13 03:10:46,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816402625] [2024-09-13 03:10:46,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816402625] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76437682] [2024-09-13 03:10:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:46,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:46,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:46,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:46,719 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 03:10:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:46,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-13 03:10:46,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-13 03:10:46,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-13 03:10:47,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76437682] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:47,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:47,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-09-13 03:10:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209338456] [2024-09-13 03:10:47,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:47,107 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-13 03:10:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:47,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-13 03:10:47,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-13 03:10:47,111 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-13 03:10:47,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:47,462 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2024-09-13 03:10:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-13 03:10:47,463 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 29 [2024-09-13 03:10:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:47,465 INFO L225 Difference]: With dead ends: 77 [2024-09-13 03:10:47,466 INFO L226 Difference]: Without dead ends: 71 [2024-09-13 03:10:47,467 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:10:47,468 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:47,469 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 123 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:10:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-13 03:10:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2024-09-13 03:10:47,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 34 states have internal predecessors, (36), 16 states have call successors, (16), 8 states have call predecessors, (16), 12 states have return successors, (34), 17 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-13 03:10:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 86 transitions. [2024-09-13 03:10:47,487 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 86 transitions. Word has length 29 [2024-09-13 03:10:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:47,487 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 86 transitions. [2024-09-13 03:10:47,487 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-13 03:10:47,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2024-09-13 03:10:47,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-13 03:10:47,489 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:47,489 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:47,502 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-13 03:10:47,689 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:47,690 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:47,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 334206910, now seen corresponding path program 2 times [2024-09-13 03:10:47,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:47,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180253454] [2024-09-13 03:10:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:47,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-13 03:10:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-13 03:10:47,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:47,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180253454] [2024-09-13 03:10:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180253454] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:47,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432131728] [2024-09-13 03:10:47,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:10:47,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:47,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:47,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:47,840 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-13 03:10:47,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:10:47,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:47,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-13 03:10:47,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-13 03:10:47,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-13 03:10:48,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432131728] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:48,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:48,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2024-09-13 03:10:48,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614826361] [2024-09-13 03:10:48,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:48,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-13 03:10:48,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:48,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-13 03:10:48,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-13 03:10:48,309 INFO L87 Difference]: Start difference. First operand 60 states and 86 transitions. Second operand has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-13 03:10:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:48,556 INFO L93 Difference]: Finished difference Result 111 states and 172 transitions. [2024-09-13 03:10:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-13 03:10:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) Word has length 39 [2024-09-13 03:10:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:48,558 INFO L225 Difference]: With dead ends: 111 [2024-09-13 03:10:48,558 INFO L226 Difference]: Without dead ends: 77 [2024-09-13 03:10:48,559 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-09-13 03:10:48,560 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 32 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:48,560 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 148 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:10:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-13 03:10:48,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 58. [2024-09-13 03:10:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 33 states have internal predecessors, (38), 13 states have call successors, (13), 11 states have call predecessors, (13), 10 states have return successors, (21), 13 states have call predecessors, (21), 12 states have call successors, (21) [2024-09-13 03:10:48,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2024-09-13 03:10:48,571 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 39 [2024-09-13 03:10:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:48,571 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2024-09-13 03:10:48,571 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-13 03:10:48,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2024-09-13 03:10:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-13 03:10:48,572 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:48,572 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:48,585 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-13 03:10:48,773 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:48,773 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:48,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2051145677, now seen corresponding path program 1 times [2024-09-13 03:10:48,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:48,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37074228] [2024-09-13 03:10:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:48,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-13 03:10:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-13 03:10:48,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:48,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37074228] [2024-09-13 03:10:48,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37074228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:48,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675314006] [2024-09-13 03:10:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:48,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:48,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:48,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:48,947 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-13 03:10:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:48,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-13 03:10:48,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-13 03:10:49,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-13 03:10:49,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675314006] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:49,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:49,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 20 [2024-09-13 03:10:49,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385822534] [2024-09-13 03:10:49,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:49,284 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-13 03:10:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-13 03:10:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-13 03:10:49,285 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-13 03:10:49,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:49,460 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-09-13 03:10:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-13 03:10:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) Word has length 35 [2024-09-13 03:10:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:49,461 INFO L225 Difference]: With dead ends: 65 [2024-09-13 03:10:49,461 INFO L226 Difference]: Without dead ends: 53 [2024-09-13 03:10:49,462 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:10:49,463 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:49,463 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:10:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-13 03:10:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-09-13 03:10:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.1) internal successors, (33), 29 states have internal predecessors, (33), 12 states have call successors, (12), 10 states have call predecessors, (12), 8 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-09-13 03:10:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2024-09-13 03:10:49,477 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 35 [2024-09-13 03:10:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:49,477 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2024-09-13 03:10:49,477 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-13 03:10:49,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2024-09-13 03:10:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-13 03:10:49,480 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:49,480 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:49,493 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-13 03:10:49,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:49,681 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:49,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:49,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2007684205, now seen corresponding path program 2 times [2024-09-13 03:10:49,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:49,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470885587] [2024-09-13 03:10:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:49,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:49,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:49,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:49,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:49,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:49,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-13 03:10:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-13 03:10:50,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:50,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470885587] [2024-09-13 03:10:50,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470885587] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:50,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443915790] [2024-09-13 03:10:50,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:10:50,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:50,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:50,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:50,151 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-13 03:10:50,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:10:50,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:50,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-13 03:10:50,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-09-13 03:10:50,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-13 03:10:50,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443915790] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:50,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:50,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 18] total 34 [2024-09-13 03:10:50,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252536298] [2024-09-13 03:10:50,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:50,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-13 03:10:50,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-13 03:10:50,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-09-13 03:10:50,792 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-13 03:10:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:51,623 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2024-09-13 03:10:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-13 03:10:51,623 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) Word has length 55 [2024-09-13 03:10:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:51,625 INFO L225 Difference]: With dead ends: 104 [2024-09-13 03:10:51,625 INFO L226 Difference]: Without dead ends: 100 [2024-09-13 03:10:51,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=532, Invalid=3250, Unknown=0, NotChecked=0, Total=3782 [2024-09-13 03:10:51,626 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 182 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:51,627 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 194 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-13 03:10:51,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-13 03:10:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2024-09-13 03:10:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 20 states have call successors, (20), 12 states have call predecessors, (20), 17 states have return successors, (45), 25 states have call predecessors, (45), 19 states have call successors, (45) [2024-09-13 03:10:51,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2024-09-13 03:10:51,649 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 55 [2024-09-13 03:10:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:51,649 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2024-09-13 03:10:51,649 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-13 03:10:51,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2024-09-13 03:10:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-13 03:10:51,651 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:51,651 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:51,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-13 03:10:51,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:51,852 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:51,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1984388281, now seen corresponding path program 3 times [2024-09-13 03:10:51,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:51,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877137233] [2024-09-13 03:10:51,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:51,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-13 03:10:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:51,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:52,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 45 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-13 03:10:52,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:52,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877137233] [2024-09-13 03:10:52,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877137233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:52,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638427944] [2024-09-13 03:10:52,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 03:10:52,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:52,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:52,039 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-13 03:10:52,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-13 03:10:52,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:52,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-13 03:10:52,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-13 03:10:52,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-13 03:10:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638427944] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:52,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:52,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-13 03:10:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377342773] [2024-09-13 03:10:52,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:52,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-13 03:10:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-13 03:10:52,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-09-13 03:10:52,630 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-09-13 03:10:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:52,904 INFO L93 Difference]: Finished difference Result 145 states and 223 transitions. [2024-09-13 03:10:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-13 03:10:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) Word has length 61 [2024-09-13 03:10:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:52,905 INFO L225 Difference]: With dead ends: 145 [2024-09-13 03:10:52,905 INFO L226 Difference]: Without dead ends: 79 [2024-09-13 03:10:52,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2024-09-13 03:10:52,907 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:52,907 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 162 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:10:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-13 03:10:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-09-13 03:10:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 19 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (36), 22 states have call predecessors, (36), 18 states have call successors, (36) [2024-09-13 03:10:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-09-13 03:10:52,919 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 61 [2024-09-13 03:10:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:52,919 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-09-13 03:10:52,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-09-13 03:10:52,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-09-13 03:10:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-13 03:10:52,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:52,921 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 6, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:52,936 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-13 03:10:53,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-13 03:10:53,125 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:53,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash 617404749, now seen corresponding path program 4 times [2024-09-13 03:10:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371001971] [2024-09-13 03:10:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:10:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-13 03:10:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 71 proven. 69 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-09-13 03:10:53,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371001971] [2024-09-13 03:10:53,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371001971] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081205987] [2024-09-13 03:10:53,335 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 03:10:53,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:53,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:53,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:53,337 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-13 03:10:53,396 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 03:10:53,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:53,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-13 03:10:53,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 70 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-09-13 03:10:53,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 75 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-13 03:10:53,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081205987] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:53,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:53,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 19 [2024-09-13 03:10:53,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240236554] [2024-09-13 03:10:53,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:53,854 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-13 03:10:53,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:53,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-13 03:10:53,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-09-13 03:10:53,855 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) [2024-09-13 03:10:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:54,058 INFO L93 Difference]: Finished difference Result 122 states and 179 transitions. [2024-09-13 03:10:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-13 03:10:54,058 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) Word has length 75 [2024-09-13 03:10:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:54,060 INFO L225 Difference]: With dead ends: 122 [2024-09-13 03:10:54,060 INFO L226 Difference]: Without dead ends: 76 [2024-09-13 03:10:54,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 163 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2024-09-13 03:10:54,061 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 28 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:54,062 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:10:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-13 03:10:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2024-09-13 03:10:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (32), 19 states have call predecessors, (32), 18 states have call successors, (32) [2024-09-13 03:10:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-09-13 03:10:54,079 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 75 [2024-09-13 03:10:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:54,080 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-09-13 03:10:54,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) [2024-09-13 03:10:54,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:54,080 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-09-13 03:10:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-13 03:10:54,083 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:54,083 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:54,095 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-13 03:10:54,283 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:54,283 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:54,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash 747420525, now seen corresponding path program 5 times [2024-09-13 03:10:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301560414] [2024-09-13 03:10:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:54,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:10:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-13 03:10:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 135 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-09-13 03:10:54,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301560414] [2024-09-13 03:10:54,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301560414] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899746361] [2024-09-13 03:10:54,544 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 03:10:54,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:54,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:54,546 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:54,546 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-13 03:10:54,621 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-09-13 03:10:54,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:54,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-13 03:10:54,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 50 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-09-13 03:10:54,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 60 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-09-13 03:10:55,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899746361] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:55,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:55,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-13 03:10:55,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830729883] [2024-09-13 03:10:55,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:55,113 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-13 03:10:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-13 03:10:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-09-13 03:10:55,114 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2024-09-13 03:10:55,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:10:55,407 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2024-09-13 03:10:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-13 03:10:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) Word has length 95 [2024-09-13 03:10:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:10:55,409 INFO L225 Difference]: With dead ends: 78 [2024-09-13 03:10:55,409 INFO L226 Difference]: Without dead ends: 74 [2024-09-13 03:10:55,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 205 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=251, Invalid=1155, Unknown=0, NotChecked=0, Total=1406 [2024-09-13 03:10:55,410 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:10:55,410 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 184 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:10:55,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-13 03:10:55,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2024-09-13 03:10:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 19 states have call successors, (19), 11 states have call predecessors, (19), 12 states have return successors, (33), 20 states have call predecessors, (33), 18 states have call successors, (33) [2024-09-13 03:10:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-09-13 03:10:55,420 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 95 [2024-09-13 03:10:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:10:55,421 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-09-13 03:10:55,421 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2024-09-13 03:10:55,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:55,421 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-09-13 03:10:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-13 03:10:55,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:10:55,423 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:10:55,435 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-13 03:10:55,623 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:55,624 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:10:55,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:10:55,624 INFO L85 PathProgramCache]: Analyzing trace with hash -35650631, now seen corresponding path program 6 times [2024-09-13 03:10:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:10:55,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82476394] [2024-09-13 03:10:55,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:10:55,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:10:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:55,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:10:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:55,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:10:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:10:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:10:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:10:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-13 03:10:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:10:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:10:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 22 proven. 163 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-09-13 03:10:56,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:10:56,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82476394] [2024-09-13 03:10:56,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82476394] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:10:56,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23618260] [2024-09-13 03:10:56,458 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 03:10:56,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:10:56,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:10:56,459 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:10:56,460 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-13 03:10:56,550 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-09-13 03:10:56,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:10:56,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-09-13 03:10:56,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:10:56,822 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-09-13 03:10:56,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:10:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-13 03:10:57,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23618260] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:10:57,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:10:57,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 32] total 54 [2024-09-13 03:10:57,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752190592] [2024-09-13 03:10:57,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:10:57,775 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-09-13 03:10:57,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:10:57,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-09-13 03:10:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2660, Unknown=0, NotChecked=0, Total=2862 [2024-09-13 03:10:57,777 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) [2024-09-13 03:11:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:00,711 INFO L93 Difference]: Finished difference Result 225 states and 326 transitions. [2024-09-13 03:11:00,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-13 03:11:00,712 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) Word has length 101 [2024-09-13 03:11:00,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:00,714 INFO L225 Difference]: With dead ends: 225 [2024-09-13 03:11:00,714 INFO L226 Difference]: Without dead ends: 221 [2024-09-13 03:11:00,717 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3743 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1935, Invalid=12827, Unknown=0, NotChecked=0, Total=14762 [2024-09-13 03:11:00,717 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 394 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 795 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:00,718 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 497 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [795 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-13 03:11:00,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-13 03:11:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 182. [2024-09-13 03:11:00,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 97 states have internal predecessors, (105), 49 states have call successors, (49), 29 states have call predecessors, (49), 34 states have return successors, (105), 55 states have call predecessors, (105), 48 states have call successors, (105) [2024-09-13 03:11:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 259 transitions. [2024-09-13 03:11:00,758 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 259 transitions. Word has length 101 [2024-09-13 03:11:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:00,758 INFO L474 AbstractCegarLoop]: Abstraction has 182 states and 259 transitions. [2024-09-13 03:11:00,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) [2024-09-13 03:11:00,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 259 transitions. [2024-09-13 03:11:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-13 03:11:00,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:00,760 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:00,772 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-13 03:11:00,964 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:00,965 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:00,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:00,965 INFO L85 PathProgramCache]: Analyzing trace with hash 796330413, now seen corresponding path program 7 times [2024-09-13 03:11:00,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:00,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263640501] [2024-09-13 03:11:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-13 03:11:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 150 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-09-13 03:11:01,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:01,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263640501] [2024-09-13 03:11:01,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263640501] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:01,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94802504] [2024-09-13 03:11:01,257 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 03:11:01,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:01,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:01,259 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-13 03:11:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:01,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 03:11:01,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-09-13 03:11:01,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-09-13 03:11:02,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94802504] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:02,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:02,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-13 03:11:02,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380311588] [2024-09-13 03:11:02,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:02,084 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-13 03:11:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:02,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-13 03:11:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:11:02,085 INFO L87 Difference]: Start difference. First operand 182 states and 259 transitions. Second operand has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) [2024-09-13 03:11:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:02,385 INFO L93 Difference]: Finished difference Result 294 states and 473 transitions. [2024-09-13 03:11:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-13 03:11:02,386 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) Word has length 107 [2024-09-13 03:11:02,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:02,387 INFO L225 Difference]: With dead ends: 294 [2024-09-13 03:11:02,387 INFO L226 Difference]: Without dead ends: 184 [2024-09-13 03:11:02,388 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 229 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=352, Invalid=1628, Unknown=0, NotChecked=0, Total=1980 [2024-09-13 03:11:02,389 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:02,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 220 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:11:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-13 03:11:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 160. [2024-09-13 03:11:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 47 states have call successors, (47), 24 states have call predecessors, (47), 30 states have return successors, (89), 53 states have call predecessors, (89), 46 states have call successors, (89) [2024-09-13 03:11:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 223 transitions. [2024-09-13 03:11:02,410 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 223 transitions. Word has length 107 [2024-09-13 03:11:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:02,411 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 223 transitions. [2024-09-13 03:11:02,411 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) [2024-09-13 03:11:02,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 223 transitions. [2024-09-13 03:11:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-13 03:11:02,412 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:02,412 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:02,424 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-13 03:11:02,613 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-13 03:11:02,613 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:02,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash 59611577, now seen corresponding path program 8 times [2024-09-13 03:11:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:02,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053749104] [2024-09-13 03:11:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:02,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-13 03:11:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:03,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:03,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 410 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2024-09-13 03:11:03,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053749104] [2024-09-13 03:11:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053749104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013595304] [2024-09-13 03:11:03,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:11:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:03,056 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:03,056 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-13 03:11:03,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:11:03,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:11:03,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 03:11:03,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2024-09-13 03:11:03,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2024-09-13 03:11:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013595304] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:04,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:04,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-13 03:11:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491041622] [2024-09-13 03:11:04,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:04,052 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-13 03:11:04,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:04,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-13 03:11:04,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:11:04,052 INFO L87 Difference]: Start difference. First operand 160 states and 223 transitions. Second operand has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) [2024-09-13 03:11:04,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:04,392 INFO L93 Difference]: Finished difference Result 243 states and 364 transitions. [2024-09-13 03:11:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-13 03:11:04,392 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) Word has length 181 [2024-09-13 03:11:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:04,394 INFO L225 Difference]: With dead ends: 243 [2024-09-13 03:11:04,394 INFO L226 Difference]: Without dead ends: 173 [2024-09-13 03:11:04,395 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 407 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1708, Unknown=0, NotChecked=0, Total=2070 [2024-09-13 03:11:04,395 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:04,396 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 196 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:11:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-13 03:11:04,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-09-13 03:11:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 83 states have internal predecessors, (88), 47 states have call successors, (47), 25 states have call predecessors, (47), 29 states have return successors, (82), 51 states have call predecessors, (82), 46 states have call successors, (82) [2024-09-13 03:11:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 217 transitions. [2024-09-13 03:11:04,428 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 217 transitions. Word has length 181 [2024-09-13 03:11:04,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:04,429 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 217 transitions. [2024-09-13 03:11:04,429 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) [2024-09-13 03:11:04,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:04,429 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 217 transitions. [2024-09-13 03:11:04,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-09-13 03:11:04,431 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:04,431 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:04,444 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-13 03:11:04,635 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-13 03:11:04,636 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:04,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1713119149, now seen corresponding path program 9 times [2024-09-13 03:11:04,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394884010] [2024-09-13 03:11:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:05,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-13 03:11:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 47 proven. 707 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2024-09-13 03:11:06,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:06,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394884010] [2024-09-13 03:11:06,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394884010] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:06,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207441450] [2024-09-13 03:11:06,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 03:11:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:06,549 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:06,550 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-13 03:11:06,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-09-13 03:11:06,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:11:06,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-09-13 03:11:06,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2024-09-13 03:11:07,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-09-13 03:11:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207441450] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:09,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:09,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 58] total 86 [2024-09-13 03:11:09,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070399208] [2024-09-13 03:11:09,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:09,400 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-13 03:11:09,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-13 03:11:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=6990, Unknown=0, NotChecked=0, Total=7310 [2024-09-13 03:11:09,402 INFO L87 Difference]: Start difference. First operand 160 states and 217 transitions. Second operand has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) [2024-09-13 03:11:24,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:24,700 INFO L93 Difference]: Finished difference Result 527 states and 795 transitions. [2024-09-13 03:11:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-09-13 03:11:24,700 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) Word has length 187 [2024-09-13 03:11:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:24,704 INFO L225 Difference]: With dead ends: 527 [2024-09-13 03:11:24,704 INFO L226 Difference]: Without dead ends: 523 [2024-09-13 03:11:24,711 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17428 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=8192, Invalid=53064, Unknown=0, NotChecked=0, Total=61256 [2024-09-13 03:11:24,711 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 1719 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 3103 mSolverCounterSat, 3562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 6665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3562 IncrementalHoareTripleChecker+Valid, 3103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:24,712 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 873 Invalid, 6665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3562 Valid, 3103 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-13 03:11:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-09-13 03:11:24,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 440. [2024-09-13 03:11:24,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 236 states have (on average 1.0593220338983051) internal successors, (250), 232 states have internal predecessors, (250), 127 states have call successors, (127), 76 states have call predecessors, (127), 76 states have return successors, (257), 131 states have call predecessors, (257), 126 states have call successors, (257) [2024-09-13 03:11:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 634 transitions. [2024-09-13 03:11:24,796 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 634 transitions. Word has length 187 [2024-09-13 03:11:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:24,797 INFO L474 AbstractCegarLoop]: Abstraction has 440 states and 634 transitions. [2024-09-13 03:11:24,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) [2024-09-13 03:11:24,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 634 transitions. [2024-09-13 03:11:24,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-09-13 03:11:24,800 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:24,800 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:24,812 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-13 03:11:25,003 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:25,003 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:25,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:25,004 INFO L85 PathProgramCache]: Analyzing trace with hash -629811463, now seen corresponding path program 10 times [2024-09-13 03:11:25,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:25,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389084810] [2024-09-13 03:11:25,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:25,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-13 03:11:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 431 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-09-13 03:11:25,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:25,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389084810] [2024-09-13 03:11:25,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389084810] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:25,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859648593] [2024-09-13 03:11:25,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 03:11:25,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:25,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:25,475 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:25,476 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-13 03:11:25,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 03:11:25,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:11:25,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-13 03:11:25,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:25,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-09-13 03:11:25,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2024-09-13 03:11:26,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859648593] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:26,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:26,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-13 03:11:26,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418676252] [2024-09-13 03:11:26,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:26,761 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-13 03:11:26,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-13 03:11:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-09-13 03:11:26,762 INFO L87 Difference]: Start difference. First operand 440 states and 634 transitions. Second operand has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) [2024-09-13 03:11:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:27,177 INFO L93 Difference]: Finished difference Result 686 states and 1091 transitions. [2024-09-13 03:11:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-13 03:11:27,178 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) Word has length 193 [2024-09-13 03:11:27,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:27,181 INFO L225 Difference]: With dead ends: 686 [2024-09-13 03:11:27,181 INFO L226 Difference]: Without dead ends: 470 [2024-09-13 03:11:27,183 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 431 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=2272, Unknown=0, NotChecked=0, Total=2756 [2024-09-13 03:11:27,183 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:27,183 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 175 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:11:27,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-09-13 03:11:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 397. [2024-09-13 03:11:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 201 states have (on average 1.0597014925373134) internal successors, (213), 201 states have internal predecessors, (213), 121 states have call successors, (121), 61 states have call predecessors, (121), 74 states have return successors, (220), 134 states have call predecessors, (220), 120 states have call successors, (220) [2024-09-13 03:11:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 554 transitions. [2024-09-13 03:11:27,244 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 554 transitions. Word has length 193 [2024-09-13 03:11:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:27,244 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 554 transitions. [2024-09-13 03:11:27,244 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) [2024-09-13 03:11:27,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 554 transitions. [2024-09-13 03:11:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-09-13 03:11:27,248 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:27,248 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:27,261 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-13 03:11:27,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-13 03:11:27,449 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:27,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1937197997, now seen corresponding path program 11 times [2024-09-13 03:11:27,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:27,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416076953] [2024-09-13 03:11:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:27,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:27,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:27,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:27,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:27,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:11:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-13 03:11:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1105 refuted. 0 times theorem prover too weak. 7423 trivial. 0 not checked. [2024-09-13 03:11:28,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:28,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416076953] [2024-09-13 03:11:28,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416076953] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:28,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347580702] [2024-09-13 03:11:28,357 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 03:11:28,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:28,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:28,358 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:28,360 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-13 03:11:28,641 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2024-09-13 03:11:28,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:11:28,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-13 03:11:28,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2024-09-13 03:11:28,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2024-09-13 03:11:30,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347580702] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:30,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:30,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-13 03:11:30,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723058106] [2024-09-13 03:11:30,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:30,137 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-13 03:11:30,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:30,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-13 03:11:30,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-09-13 03:11:30,138 INFO L87 Difference]: Start difference. First operand 397 states and 554 transitions. Second operand has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) [2024-09-13 03:11:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:11:30,580 INFO L93 Difference]: Finished difference Result 532 states and 789 transitions. [2024-09-13 03:11:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-13 03:11:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) Word has length 347 [2024-09-13 03:11:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:11:30,584 INFO L225 Difference]: With dead ends: 532 [2024-09-13 03:11:30,584 INFO L226 Difference]: Without dead ends: 426 [2024-09-13 03:11:30,585 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 801 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=494, Invalid=2368, Unknown=0, NotChecked=0, Total=2862 [2024-09-13 03:11:30,585 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:11:30,585 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 225 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:11:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-09-13 03:11:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 397. [2024-09-13 03:11:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 202 states have internal predecessors, (214), 121 states have call successors, (121), 62 states have call predecessors, (121), 73 states have return successors, (205), 132 states have call predecessors, (205), 120 states have call successors, (205) [2024-09-13 03:11:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 540 transitions. [2024-09-13 03:11:30,646 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 540 transitions. Word has length 347 [2024-09-13 03:11:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:11:30,647 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 540 transitions. [2024-09-13 03:11:30,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) [2024-09-13 03:11:30,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 540 transitions. [2024-09-13 03:11:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-09-13 03:11:30,649 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:11:30,649 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:11:30,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-13 03:11:30,850 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-13 03:11:30,850 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:11:30,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:11:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash -910163207, now seen corresponding path program 12 times [2024-09-13 03:11:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:11:30,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445907020] [2024-09-13 03:11:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:11:30,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:11:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:32,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:11:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:32,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:11:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:34,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:11:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:11:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:35,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:11:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:11:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:11:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-13 03:11:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:11:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:11:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 96 proven. 2942 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2024-09-13 03:11:36,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:11:36,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445907020] [2024-09-13 03:11:36,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445907020] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:11:36,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111900795] [2024-09-13 03:11:36,302 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 03:11:36,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:11:36,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:11:36,303 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:11:36,304 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-13 03:11:36,606 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2024-09-13 03:11:36,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:11:36,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 339 conjuncts are in the unsatisfiable core [2024-09-13 03:11:36,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:11:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2024-09-13 03:11:37,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:11:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-09-13 03:11:43,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111900795] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:11:43,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:11:43,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 25, 108] total 142 [2024-09-13 03:11:43,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31933774] [2024-09-13 03:11:43,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:11:43,152 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-09-13 03:11:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:11:43,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-09-13 03:11:43,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=19508, Unknown=0, NotChecked=0, Total=20022 [2024-09-13 03:11:43,155 INFO L87 Difference]: Start difference. First operand 397 states and 540 transitions. Second operand has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) [2024-09-13 03:13:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:13:30,341 INFO L93 Difference]: Finished difference Result 1260 states and 1961 transitions. [2024-09-13 03:13:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 396 states. [2024-09-13 03:13:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) Word has length 353 [2024-09-13 03:13:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:13:30,348 INFO L225 Difference]: With dead ends: 1260 [2024-09-13 03:13:30,348 INFO L226 Difference]: Without dead ends: 1256 [2024-09-13 03:13:30,368 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86864 ImplicationChecksByTransitivity, 103.2s TimeCoverageRelationStatistics Valid=37171, Invalid=236881, Unknown=0, NotChecked=0, Total=274052 [2024-09-13 03:13:30,369 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 6735 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 7663 mSolverCounterSat, 16324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6735 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 23987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16324 IncrementalHoareTripleChecker+Valid, 7663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-09-13 03:13:30,369 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6735 Valid, 2253 Invalid, 23987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16324 Valid, 7663 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-09-13 03:13:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-09-13 03:13:30,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1085. [2024-09-13 03:13:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 581 states have (on average 1.0499139414802066) internal successors, (610), 570 states have internal predecessors, (610), 326 states have call successors, (326), 197 states have call predecessors, (326), 177 states have return successors, (645), 317 states have call predecessors, (645), 325 states have call successors, (645) [2024-09-13 03:13:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1581 transitions. [2024-09-13 03:13:30,653 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1581 transitions. Word has length 353 [2024-09-13 03:13:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:13:30,654 INFO L474 AbstractCegarLoop]: Abstraction has 1085 states and 1581 transitions. [2024-09-13 03:13:30,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) [2024-09-13 03:13:30,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1581 transitions. [2024-09-13 03:13:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-09-13 03:13:30,659 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:13:30,660 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:13:30,674 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-13 03:13:30,860 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-13 03:13:30,860 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:13:30,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash -870344211, now seen corresponding path program 13 times [2024-09-13 03:13:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:13:30,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755746700] [2024-09-13 03:13:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:13:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:13:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:13:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:13:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:13:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-13 03:13:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1132 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2024-09-13 03:13:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:13:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755746700] [2024-09-13 03:13:31,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755746700] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:13:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279346165] [2024-09-13 03:13:31,662 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 03:13:31,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:13:31,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:13:31,663 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:13:31,664 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-13 03:13:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:31,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-13 03:13:31,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:13:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2024-09-13 03:13:31,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:13:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2024-09-13 03:13:33,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279346165] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:13:33,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:13:33,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-09-13 03:13:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825974832] [2024-09-13 03:13:33,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:13:33,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-13 03:13:33,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:13:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-13 03:13:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-09-13 03:13:33,686 INFO L87 Difference]: Start difference. First operand 1085 states and 1581 transitions. Second operand has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) [2024-09-13 03:13:34,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:13:34,392 INFO L93 Difference]: Finished difference Result 1655 states and 2599 transitions. [2024-09-13 03:13:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-13 03:13:34,395 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) Word has length 359 [2024-09-13 03:13:34,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:13:34,402 INFO L225 Difference]: With dead ends: 1655 [2024-09-13 03:13:34,402 INFO L226 Difference]: Without dead ends: 1183 [2024-09-13 03:13:34,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 825 SyntacticMatches, 13 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=3023, Unknown=0, NotChecked=0, Total=3660 [2024-09-13 03:13:34,405 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 64 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:13:34,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 265 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:13:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-09-13 03:13:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 980. [2024-09-13 03:13:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 493 states have (on average 1.054766734279919) internal successors, (520), 493 states have internal predecessors, (520), 305 states have call successors, (305), 153 states have call predecessors, (305), 181 states have return successors, (533), 333 states have call predecessors, (533), 304 states have call successors, (533) [2024-09-13 03:13:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1358 transitions. [2024-09-13 03:13:34,616 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1358 transitions. Word has length 359 [2024-09-13 03:13:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:13:34,616 INFO L474 AbstractCegarLoop]: Abstraction has 980 states and 1358 transitions. [2024-09-13 03:13:34,616 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) [2024-09-13 03:13:34,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1358 transitions. [2024-09-13 03:13:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-09-13 03:13:34,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:13:34,621 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 48, 47, 47, 47, 47, 47, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:13:34,636 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-13 03:13:34,821 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-13 03:13:34,822 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:13:34,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2092596487, now seen corresponding path program 14 times [2024-09-13 03:13:34,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:13:34,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49601103] [2024-09-13 03:13:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:13:34,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:13:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:35,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:13:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:35,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:13:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:35,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:35,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:35,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:13:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-13 03:13:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-13 03:13:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1634 proven. 2187 refuted. 0 times theorem prover too weak. 16253 trivial. 0 not checked. [2024-09-13 03:13:36,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:13:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49601103] [2024-09-13 03:13:36,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49601103] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:13:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233957700] [2024-09-13 03:13:36,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:13:36,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:13:36,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:13:36,408 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:13:36,409 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-13 03:13:36,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:13:36,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:13:36,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-13 03:13:36,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:13:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2215 refuted. 0 times theorem prover too weak. 16219 trivial. 0 not checked. [2024-09-13 03:13:36,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:13:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2256 refuted. 0 times theorem prover too weak. 16178 trivial. 0 not checked. [2024-09-13 03:13:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233957700] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:13:39,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:13:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 25] total 31 [2024-09-13 03:13:39,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572488324] [2024-09-13 03:13:39,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:13:39,107 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-13 03:13:39,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:13:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-13 03:13:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2024-09-13 03:13:39,108 INFO L87 Difference]: Start difference. First operand 980 states and 1358 transitions. Second operand has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) [2024-09-13 03:13:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:13:39,681 INFO L93 Difference]: Finished difference Result 1346 states and 1938 transitions. [2024-09-13 03:13:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-13 03:13:39,683 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) Word has length 513 [2024-09-13 03:13:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:13:39,690 INFO L225 Difference]: With dead ends: 1346 [2024-09-13 03:13:39,690 INFO L226 Difference]: Without dead ends: 1180 [2024-09-13 03:13:39,692 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1201 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=900, Invalid=2882, Unknown=0, NotChecked=0, Total=3782 [2024-09-13 03:13:39,692 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 75 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:13:39,692 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 180 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:13:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-09-13 03:13:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 977. [2024-09-13 03:13:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 492 states have (on average 1.0548780487804879) internal successors, (519), 492 states have internal predecessors, (519), 305 states have call successors, (305), 154 states have call predecessors, (305), 179 states have return successors, (501), 330 states have call predecessors, (501), 304 states have call successors, (501) [2024-09-13 03:13:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1325 transitions. [2024-09-13 03:13:39,909 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1325 transitions. Word has length 513 [2024-09-13 03:13:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:13:39,910 INFO L474 AbstractCegarLoop]: Abstraction has 977 states and 1325 transitions. [2024-09-13 03:13:39,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) [2024-09-13 03:13:39,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1325 transitions. [2024-09-13 03:13:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-09-13 03:13:39,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:13:39,915 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:13:39,930 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-13 03:13:40,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:13:40,116 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:13:40,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:40,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1634968839, now seen corresponding path program 15 times [2024-09-13 03:13:40,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:13:40,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846037118] [2024-09-13 03:13:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:13:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:13:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:40,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:13:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:40,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:13:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:13:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-13 03:13:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:13:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:13:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:13:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:13:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:13:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-09-13 03:13:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2772 refuted. 0 times theorem prover too weak. 32665 trivial. 0 not checked. [2024-09-13 03:13:41,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:13:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846037118] [2024-09-13 03:13:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846037118] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:13:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423298345] [2024-09-13 03:13:41,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 03:13:41,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:13:41,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:13:41,928 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:13:41,930 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-13 03:13:42,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-09-13 03:13:42,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:13:42,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-13 03:13:42,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:13:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2446 refuted. 0 times theorem prover too weak. 33024 trivial. 0 not checked. [2024-09-13 03:13:42,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:13:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2487 refuted. 0 times theorem prover too weak. 32983 trivial. 0 not checked. [2024-09-13 03:13:44,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423298345] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:13:44,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:13:44,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16, 25] total 42 [2024-09-13 03:13:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569457859] [2024-09-13 03:13:44,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:13:44,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-13 03:13:44,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:13:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-13 03:13:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1521, Unknown=0, NotChecked=0, Total=1722 [2024-09-13 03:13:44,097 INFO L87 Difference]: Start difference. First operand 977 states and 1325 transitions. Second operand has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) [2024-09-13 03:13:45,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:13:45,472 INFO L93 Difference]: Finished difference Result 1511 states and 1970 transitions. [2024-09-13 03:13:45,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-09-13 03:13:45,473 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) Word has length 673 [2024-09-13 03:13:45,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:13:45,482 INFO L225 Difference]: With dead ends: 1511 [2024-09-13 03:13:45,482 INFO L226 Difference]: Without dead ends: 1507 [2024-09-13 03:13:45,484 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1681 GetRequests, 1586 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2346 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1315, Invalid=7997, Unknown=0, NotChecked=0, Total=9312 [2024-09-13 03:13:45,484 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 153 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-13 03:13:45,485 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 314 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-13 03:13:45,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2024-09-13 03:13:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 980. [2024-09-13 03:13:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 494 states have (on average 1.0546558704453441) internal successors, (521), 494 states have internal predecessors, (521), 305 states have call successors, (305), 154 states have call predecessors, (305), 180 states have return successors, (502), 331 states have call predecessors, (502), 304 states have call successors, (502) [2024-09-13 03:13:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1328 transitions. [2024-09-13 03:13:45,783 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1328 transitions. Word has length 673 [2024-09-13 03:13:45,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:13:45,784 INFO L474 AbstractCegarLoop]: Abstraction has 980 states and 1328 transitions. [2024-09-13 03:13:45,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) [2024-09-13 03:13:45,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1328 transitions. [2024-09-13 03:13:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-09-13 03:13:45,789 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:13:45,789 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:13:45,803 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-13 03:13:45,990 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-13 03:13:45,990 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:13:45,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:13:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash -62262803, now seen corresponding path program 16 times [2024-09-13 03:13:45,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:13:45,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565846722] [2024-09-13 03:13:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:13:45,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:13:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:53,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:13:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:53,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 03:13:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:13:59,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:13:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:00,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:14:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:01,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:14:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:14:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:02,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-13 03:14:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:14:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:04,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-13 03:14:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-13 03:14:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:14:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 03:14:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-13 03:14:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-09-13 03:14:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 03:14:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:14:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 193 proven. 12012 refuted. 0 times theorem prover too weak. 23785 trivial. 0 not checked. [2024-09-13 03:14:05,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:14:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565846722] [2024-09-13 03:14:05,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565846722] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:14:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892524747] [2024-09-13 03:14:05,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 03:14:05,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:14:05,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:14:05,861 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 03:14:05,862 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-13 03:14:06,286 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 03:14:06,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:14:06,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 663 conjuncts are in the unsatisfiable core [2024-09-13 03:14:06,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:14:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 12010 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-09-13 03:14:07,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:14:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 35698 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-09-13 03:14:23,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892524747] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:14:23,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:14:23,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 29, 206] total 246 [2024-09-13 03:14:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885856441] [2024-09-13 03:14:23,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:14:23,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 246 states [2024-09-13 03:14:23,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:14:23,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 246 interpolants. [2024-09-13 03:14:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=856, Invalid=59414, Unknown=0, NotChecked=0, Total=60270 [2024-09-13 03:14:23,152 INFO L87 Difference]: Start difference. First operand 980 states and 1328 transitions. Second operand has 246 states, 178 states have (on average 1.7865168539325842) internal successors, (318), 193 states have internal predecessors, (318), 103 states have call successors, (144), 67 states have call predecessors, (144), 123 states have return successors, (163), 126 states have call predecessors, (163), 103 states have call successors, (163) Killed by 15