./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d0248500070fcb488ef1ad28c8f201e8340587643ff9baf1ad195abca806e8b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:09:47,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:09:47,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:09:47,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:09:47,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:09:47,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:09:47,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:09:47,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:09:47,595 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:09:47,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:09:47,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:09:47,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:09:47,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:09:47,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:09:47,599 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:09:47,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:09:47,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:09:47,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:09:47,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:09:47,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:09:47,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:09:47,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:09:47,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:09:47,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:09:47,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:09:47,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:09:47,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:09:47,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:09:47,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:09:47,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:09:47,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:09:47,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:09:47,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:09:47,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:09:47,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:09:47,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:09:47,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:09:47,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:09:47,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:09:47,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:09:47,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:09:47,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:09:47,614 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/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0248500070fcb488ef1ad28c8f201e8340587643ff9baf1ad195abca806e8b [2024-10-13 06:09:47,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:09:47,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:09:47,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:09:47,943 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:09:47,943 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:09:47,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i [2024-10-13 06:09:49,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:09:49,716 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:09:49,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i [2024-10-13 06:09:49,730 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f526f03a/66376ab654914329b6015b43f7ad8665/FLAG7a5d6ecef [2024-10-13 06:09:49,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f526f03a/66376ab654914329b6015b43f7ad8665 [2024-10-13 06:09:49,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:09:49,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:09:49,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:09:49,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:09:49,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:09:49,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:49" (1/1) ... [2024-10-13 06:09:49,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d88f1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:49, skipping insertion in model container [2024-10-13 06:09:49,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:49" (1/1) ... [2024-10-13 06:09:49,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:09:49,993 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i[917,930] [2024-10-13 06:09:50,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:09:50,136 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:09:50,163 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-59.i[917,930] [2024-10-13 06:09:50,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:09:50,276 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:09:50,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50 WrapperNode [2024-10-13 06:09:50,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:09:50,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:09:50,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:09:50,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:09:50,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,344 INFO L138 Inliner]: procedures = 26, calls = 129, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 362 [2024-10-13 06:09:50,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:09:50,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:09:50,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:09:50,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:09:50,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,398 INFO L175 MemorySlicer]: Split 96 memory accesses to 5 slices as follows [2, 12, 32, 24, 26]. 33 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 4, 3, 3]. The 16 writes are split as follows [0, 2, 6, 4, 4]. [2024-10-13 06:09:50,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:09:50,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:09:50,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:09:50,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:09:50,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (1/1) ... [2024-10-13 06:09:50,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:09:50,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:09:50,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:09:50,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:09:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:09:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:09:50,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:09:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:09:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:09:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:09:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:09:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:09:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:09:50,672 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:09:50,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:09:51,168 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-10-13 06:09:51,169 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:09:51,226 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:09:51,226 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:09:51,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:51 BoogieIcfgContainer [2024-10-13 06:09:51,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:09:51,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:09:51,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:09:51,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:09:51,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:09:49" (1/3) ... [2024-10-13 06:09:51,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cab4dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:51, skipping insertion in model container [2024-10-13 06:09:51,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:50" (2/3) ... [2024-10-13 06:09:51,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cab4dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:51, skipping insertion in model container [2024-10-13 06:09:51,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:51" (3/3) ... [2024-10-13 06:09:51,249 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-59.i [2024-10-13 06:09:51,271 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:09:51,272 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:09:51,353 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:09:51,362 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c48526, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:09:51,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:09:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-13 06:09:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-13 06:09:51,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:51,386 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:51,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:51,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 675290820, now seen corresponding path program 1 times [2024-10-13 06:09:51,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:51,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610662086] [2024-10-13 06:09:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610662086] [2024-10-13 06:09:51,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610662086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:51,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:51,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:09:51,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062636944] [2024-10-13 06:09:51,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:51,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:09:51,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:09:51,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:09:51,984 INFO L87 Difference]: Start difference. First operand has 77 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 57 states have internal predecessors, (79), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:52,044 INFO L93 Difference]: Finished difference Result 151 states and 246 transitions. [2024-10-13 06:09:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:09:52,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 126 [2024-10-13 06:09:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:52,058 INFO L225 Difference]: With dead ends: 151 [2024-10-13 06:09:52,059 INFO L226 Difference]: Without dead ends: 75 [2024-10-13 06:09:52,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:09:52,072 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:52,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:09:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-13 06:09:52,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-13 06:09:52,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-13 06:09:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2024-10-13 06:09:52,167 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 126 [2024-10-13 06:09:52,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:52,169 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2024-10-13 06:09:52,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2024-10-13 06:09:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-13 06:09:52,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:52,175 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:52,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:09:52,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:52,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:52,176 INFO L85 PathProgramCache]: Analyzing trace with hash -375430752, now seen corresponding path program 1 times [2024-10-13 06:09:52,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:52,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167028582] [2024-10-13 06:09:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:52,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:52,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:52,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:52,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:53,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:53,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167028582] [2024-10-13 06:09:53,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167028582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:53,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:53,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:09:53,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915170594] [2024-10-13 06:09:53,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:53,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:09:53,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:53,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:09:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:53,199 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:09:53,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:53,570 INFO L93 Difference]: Finished difference Result 224 states and 329 transitions. [2024-10-13 06:09:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:09:53,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2024-10-13 06:09:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:53,574 INFO L225 Difference]: With dead ends: 224 [2024-10-13 06:09:53,574 INFO L226 Difference]: Without dead ends: 150 [2024-10-13 06:09:53,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:53,577 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 119 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:53,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 266 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:09:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-13 06:09:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2024-10-13 06:09:53,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 102 states have internal predecessors, (135), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-13 06:09:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-10-13 06:09:53,637 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 207 transitions. Word has length 126 [2024-10-13 06:09:53,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:53,638 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-10-13 06:09:53,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:09:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 207 transitions. [2024-10-13 06:09:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:53,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:53,642 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:53,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:09:53,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:53,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash 24518000, now seen corresponding path program 1 times [2024-10-13 06:09:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:53,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311666903] [2024-10-13 06:09:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:53,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:53,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311666903] [2024-10-13 06:09:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311666903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:53,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:09:53,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525705897] [2024-10-13 06:09:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:09:53,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:53,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:09:53,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:09:53,879 INFO L87 Difference]: Start difference. First operand 141 states and 207 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:09:53,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:53,925 INFO L93 Difference]: Finished difference Result 238 states and 353 transitions. [2024-10-13 06:09:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:09:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-10-13 06:09:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:53,930 INFO L225 Difference]: With dead ends: 238 [2024-10-13 06:09:53,930 INFO L226 Difference]: Without dead ends: 143 [2024-10-13 06:09:53,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:09:53,935 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:53,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:09:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-13 06:09:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-13 06:09:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 104 states have internal predecessors, (137), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-13 06:09:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 209 transitions. [2024-10-13 06:09:53,973 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 209 transitions. Word has length 128 [2024-10-13 06:09:53,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:53,973 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 209 transitions. [2024-10-13 06:09:53,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:09:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 209 transitions. [2024-10-13 06:09:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:53,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:53,975 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:53,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:09:53,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:53,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1563829902, now seen corresponding path program 1 times [2024-10-13 06:09:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198572125] [2024-10-13 06:09:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:54,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:54,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198572125] [2024-10-13 06:09:54,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198572125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:54,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:54,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:09:54,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960146551] [2024-10-13 06:09:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:54,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:09:54,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:54,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:09:54,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:09:54,604 INFO L87 Difference]: Start difference. First operand 143 states and 209 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:54,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:54,842 INFO L93 Difference]: Finished difference Result 309 states and 454 transitions. [2024-10-13 06:09:54,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:09:54,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2024-10-13 06:09:54,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:54,845 INFO L225 Difference]: With dead ends: 309 [2024-10-13 06:09:54,849 INFO L226 Difference]: Without dead ends: 218 [2024-10-13 06:09:54,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:54,851 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 118 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:54,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 235 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:09:54,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-13 06:09:54,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2024-10-13 06:09:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 158 states have (on average 1.3164556962025316) internal successors, (208), 158 states have internal predecessors, (208), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 06:09:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 316 transitions. [2024-10-13 06:09:54,906 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 316 transitions. Word has length 128 [2024-10-13 06:09:54,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:54,906 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 316 transitions. [2024-10-13 06:09:54,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 316 transitions. [2024-10-13 06:09:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:54,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:54,909 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:54,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:09:54,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1305664464, now seen corresponding path program 1 times [2024-10-13 06:09:54,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:54,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187170149] [2024-10-13 06:09:54,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:55,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187170149] [2024-10-13 06:09:55,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187170149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:55,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:55,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:09:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660549398] [2024-10-13 06:09:55,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:55,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:09:55,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:09:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:09:55,120 INFO L87 Difference]: Start difference. First operand 216 states and 316 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:09:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:55,277 INFO L93 Difference]: Finished difference Result 442 states and 641 transitions. [2024-10-13 06:09:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:09:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 128 [2024-10-13 06:09:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:55,280 INFO L225 Difference]: With dead ends: 442 [2024-10-13 06:09:55,281 INFO L226 Difference]: Without dead ends: 281 [2024-10-13 06:09:55,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:09:55,283 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:55,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 287 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:09:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-10-13 06:09:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-10-13 06:09:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 203 states have (on average 1.29064039408867) internal successors, (262), 204 states have internal predecessors, (262), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:09:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 398 transitions. [2024-10-13 06:09:55,318 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 398 transitions. Word has length 128 [2024-10-13 06:09:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:55,318 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 398 transitions. [2024-10-13 06:09:55,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:09:55,320 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 398 transitions. [2024-10-13 06:09:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:55,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:55,323 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:55,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:09:55,324 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:55,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -625606094, now seen corresponding path program 1 times [2024-10-13 06:09:55,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:55,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241136144] [2024-10-13 06:09:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:55,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:56,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:56,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241136144] [2024-10-13 06:09:56,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241136144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:56,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:56,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:09:56,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588087585] [2024-10-13 06:09:56,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:56,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:09:56,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:09:56,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:09:56,347 INFO L87 Difference]: Start difference. First operand 278 states and 398 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:09:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:56,849 INFO L93 Difference]: Finished difference Result 617 states and 882 transitions. [2024-10-13 06:09:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:09:56,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 128 [2024-10-13 06:09:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:56,856 INFO L225 Difference]: With dead ends: 617 [2024-10-13 06:09:56,858 INFO L226 Difference]: Without dead ends: 405 [2024-10-13 06:09:56,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:09:56,860 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 274 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:56,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 313 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:09:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-10-13 06:09:56,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 400. [2024-10-13 06:09:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 310 states have (on average 1.3129032258064517) internal successors, (407), 314 states have internal predecessors, (407), 80 states have call successors, (80), 9 states have call predecessors, (80), 9 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:09:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 567 transitions. [2024-10-13 06:09:56,943 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 567 transitions. Word has length 128 [2024-10-13 06:09:56,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:56,944 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 567 transitions. [2024-10-13 06:09:56,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:09:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 567 transitions. [2024-10-13 06:09:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:56,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:56,945 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:56,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:09:56,946 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:56,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1434952720, now seen corresponding path program 1 times [2024-10-13 06:09:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049063017] [2024-10-13 06:09:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:56,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:57,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:57,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049063017] [2024-10-13 06:09:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049063017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:57,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:57,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:09:57,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95915290] [2024-10-13 06:09:57,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:09:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:57,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:09:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:57,289 INFO L87 Difference]: Start difference. First operand 400 states and 567 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:57,534 INFO L93 Difference]: Finished difference Result 848 states and 1207 transitions. [2024-10-13 06:09:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:09:57,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2024-10-13 06:09:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:57,541 INFO L225 Difference]: With dead ends: 848 [2024-10-13 06:09:57,542 INFO L226 Difference]: Without dead ends: 513 [2024-10-13 06:09:57,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:57,544 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 119 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:57,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 335 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:09:57,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-10-13 06:09:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 417. [2024-10-13 06:09:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 327 states have (on average 1.308868501529052) internal successors, (428), 331 states have internal predecessors, (428), 80 states have call successors, (80), 9 states have call predecessors, (80), 9 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:09:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 588 transitions. [2024-10-13 06:09:57,615 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 588 transitions. Word has length 128 [2024-10-13 06:09:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:57,616 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 588 transitions. [2024-10-13 06:09:57,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 588 transitions. [2024-10-13 06:09:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:09:57,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:57,619 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:57,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:09:57,619 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:57,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:57,620 INFO L85 PathProgramCache]: Analyzing trace with hash 75458484, now seen corresponding path program 1 times [2024-10-13 06:09:57,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:57,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552587322] [2024-10-13 06:09:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:57,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:57,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:57,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552587322] [2024-10-13 06:09:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552587322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:57,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:57,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:09:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625564468] [2024-10-13 06:09:57,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:57,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:09:57,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:09:57,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:09:57,908 INFO L87 Difference]: Start difference. First operand 417 states and 588 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:58,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:58,141 INFO L93 Difference]: Finished difference Result 824 states and 1164 transitions. [2024-10-13 06:09:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:09:58,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2024-10-13 06:09:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:58,146 INFO L225 Difference]: With dead ends: 824 [2024-10-13 06:09:58,147 INFO L226 Difference]: Without dead ends: 479 [2024-10-13 06:09:58,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:09:58,152 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 98 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:58,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 367 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:09:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-10-13 06:09:58,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 399. [2024-10-13 06:09:58,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 309 states have (on average 1.3009708737864079) internal successors, (402), 313 states have internal predecessors, (402), 80 states have call successors, (80), 9 states have call predecessors, (80), 9 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:09:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 562 transitions. [2024-10-13 06:09:58,207 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 562 transitions. Word has length 128 [2024-10-13 06:09:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:58,208 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 562 transitions. [2024-10-13 06:09:58,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 562 transitions. [2024-10-13 06:09:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:09:58,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:58,210 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:58,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:09:58,210 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:58,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:58,211 INFO L85 PathProgramCache]: Analyzing trace with hash 118258784, now seen corresponding path program 1 times [2024-10-13 06:09:58,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:58,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471331424] [2024-10-13 06:09:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:58,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:09:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:09:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:09:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:09:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:09:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:09:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:09:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:09:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:09:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:09:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:09:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:09:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:09:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:09:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:09:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:09:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:09:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:09:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:09:58,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:09:58,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471331424] [2024-10-13 06:09:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471331424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:09:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:09:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:09:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919837596] [2024-10-13 06:09:58,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:09:58,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:09:58,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:09:58,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:09:58,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:09:58,869 INFO L87 Difference]: Start difference. First operand 399 states and 562 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:09:59,273 INFO L93 Difference]: Finished difference Result 994 states and 1394 transitions. [2024-10-13 06:09:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:09:59,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2024-10-13 06:09:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:09:59,279 INFO L225 Difference]: With dead ends: 994 [2024-10-13 06:09:59,280 INFO L226 Difference]: Without dead ends: 667 [2024-10-13 06:09:59,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:09:59,282 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 257 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:09:59,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 475 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:09:59,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-10-13 06:09:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 473. [2024-10-13 06:09:59,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 383 states have (on average 1.3028720626631853) internal successors, (499), 387 states have internal predecessors, (499), 80 states have call successors, (80), 9 states have call predecessors, (80), 9 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:09:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 659 transitions. [2024-10-13 06:09:59,370 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 659 transitions. Word has length 130 [2024-10-13 06:09:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:09:59,370 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 659 transitions. [2024-10-13 06:09:59,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:09:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 659 transitions. [2024-10-13 06:09:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-13 06:09:59,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:09:59,372 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:09:59,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 06:09:59,373 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:09:59,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:09:59,373 INFO L85 PathProgramCache]: Analyzing trace with hash -832602497, now seen corresponding path program 1 times [2024-10-13 06:09:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:09:59,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142646477] [2024-10-13 06:09:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:09:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 06:09:59,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433174416] [2024-10-13 06:09:59,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:09:59,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:09:59,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:09:59,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:09:59,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 06:09:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:09:59,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 06:09:59,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:01,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:02,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-10-13 06:10:02,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:02,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:02,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 20 [2024-10-13 06:10:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:03,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:03,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2024-10-13 06:10:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-10-13 06:10:03,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:10:03,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2024-10-13 06:10:03,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-10-13 06:10:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142646477] [2024-10-13 06:10:10,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 06:10:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433174416] [2024-10-13 06:10:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433174416] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:10,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 06:10:10,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 06:10:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8814878] [2024-10-13 06:10:10,830 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 06:10:10,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:10:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:10,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:10:10,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2024-10-13 06:10:10,832 INFO L87 Difference]: Start difference. First operand 473 states and 659 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:11,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:11,654 INFO L93 Difference]: Finished difference Result 896 states and 1249 transitions. [2024-10-13 06:10:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:10:11,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2024-10-13 06:10:11,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:11,659 INFO L225 Difference]: With dead ends: 896 [2024-10-13 06:10:11,659 INFO L226 Difference]: Without dead ends: 500 [2024-10-13 06:10:11,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=92, Invalid=249, Unknown=1, NotChecked=0, Total=342 [2024-10-13 06:10:11,662 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 137 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:11,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 441 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:10:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-10-13 06:10:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 473. [2024-10-13 06:10:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 383 states have (on average 1.3002610966057442) internal successors, (498), 387 states have internal predecessors, (498), 80 states have call successors, (80), 9 states have call predecessors, (80), 9 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:10:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 658 transitions. [2024-10-13 06:10:11,717 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 658 transitions. Word has length 131 [2024-10-13 06:10:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:11,718 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 658 transitions. [2024-10-13 06:10:11,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 658 transitions. [2024-10-13 06:10:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-13 06:10:11,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:11,720 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:11,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 06:10:11,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 06:10:11,921 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:11,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 377629819, now seen corresponding path program 1 times [2024-10-13 06:10:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:11,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443928508] [2024-10-13 06:10:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:11,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 06:10:12,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277715486] [2024-10-13 06:10:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:12,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:12,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:10:12,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 06:10:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:12,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-13 06:10:12,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:13,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:14,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:15,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-10-13 06:10:15,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 20 [2024-10-13 06:10:15,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:15,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2024-10-13 06:10:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-10-13 06:10:15,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:10:15,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2024-10-13 06:10:15,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2024-10-13 06:10:18,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:18,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443928508] [2024-10-13 06:10:18,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 06:10:18,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277715486] [2024-10-13 06:10:18,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277715486] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:18,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 06:10:18,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 06:10:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883643510] [2024-10-13 06:10:18,930 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 06:10:18,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:10:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:18,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:10:18,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:10:18,932 INFO L87 Difference]: Start difference. First operand 473 states and 658 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:19,724 INFO L93 Difference]: Finished difference Result 897 states and 1247 transitions. [2024-10-13 06:10:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:10:19,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2024-10-13 06:10:19,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:19,730 INFO L225 Difference]: With dead ends: 897 [2024-10-13 06:10:19,730 INFO L226 Difference]: Without dead ends: 499 [2024-10-13 06:10:19,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:10:19,733 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 132 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:19,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 512 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:10:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-13 06:10:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 477. [2024-10-13 06:10:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 386 states have (on average 1.2953367875647668) internal successors, (500), 390 states have internal predecessors, (500), 80 states have call successors, (80), 10 states have call predecessors, (80), 10 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:10:19,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 660 transitions. [2024-10-13 06:10:19,782 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 660 transitions. Word has length 132 [2024-10-13 06:10:19,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:19,783 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 660 transitions. [2024-10-13 06:10:19,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 660 transitions. [2024-10-13 06:10:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:10:19,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:19,785 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:19,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 06:10:19,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 06:10:19,989 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:19,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1427972826, now seen corresponding path program 1 times [2024-10-13 06:10:19,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394102448] [2024-10-13 06:10:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:19,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:22,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:22,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394102448] [2024-10-13 06:10:22,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394102448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:22,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:22,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:10:22,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160444725] [2024-10-13 06:10:22,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:22,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:10:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:22,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:10:22,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:10:22,321 INFO L87 Difference]: Start difference. First operand 477 states and 660 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:10:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:23,160 INFO L93 Difference]: Finished difference Result 1141 states and 1582 transitions. [2024-10-13 06:10:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:10:23,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 133 [2024-10-13 06:10:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:23,167 INFO L225 Difference]: With dead ends: 1141 [2024-10-13 06:10:23,167 INFO L226 Difference]: Without dead ends: 752 [2024-10-13 06:10:23,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:10:23,170 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 230 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:23,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 636 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:10:23,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-10-13 06:10:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 547. [2024-10-13 06:10:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 456 states have (on average 1.3070175438596492) internal successors, (596), 460 states have internal predecessors, (596), 80 states have call successors, (80), 10 states have call predecessors, (80), 10 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:10:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 756 transitions. [2024-10-13 06:10:23,250 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 756 transitions. Word has length 133 [2024-10-13 06:10:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:23,250 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 756 transitions. [2024-10-13 06:10:23,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-13 06:10:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 756 transitions. [2024-10-13 06:10:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:10:23,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:23,253 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:23,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:10:23,253 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:23,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash 618626200, now seen corresponding path program 1 times [2024-10-13 06:10:23,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:23,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13954849] [2024-10-13 06:10:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:23,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:23,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:23,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13954849] [2024-10-13 06:10:23,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13954849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:23,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:23,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:10:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271833359] [2024-10-13 06:10:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:23,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:10:23,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:10:23,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:10:23,649 INFO L87 Difference]: Start difference. First operand 547 states and 756 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:23,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:23,994 INFO L93 Difference]: Finished difference Result 1063 states and 1479 transitions. [2024-10-13 06:10:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:23,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-10-13 06:10:23,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:23,999 INFO L225 Difference]: With dead ends: 1063 [2024-10-13 06:10:23,999 INFO L226 Difference]: Without dead ends: 607 [2024-10-13 06:10:24,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:10:24,001 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 161 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:24,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 343 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:10:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-10-13 06:10:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 547. [2024-10-13 06:10:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 456 states have (on average 1.2982456140350878) internal successors, (592), 460 states have internal predecessors, (592), 80 states have call successors, (80), 10 states have call predecessors, (80), 10 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:10:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 752 transitions. [2024-10-13 06:10:24,079 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 752 transitions. Word has length 133 [2024-10-13 06:10:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:24,080 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 752 transitions. [2024-10-13 06:10:24,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 752 transitions. [2024-10-13 06:10:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:10:24,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:24,083 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:24,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:10:24,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:24,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash -566171880, now seen corresponding path program 1 times [2024-10-13 06:10:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677158781] [2024-10-13 06:10:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:24,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:24,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:24,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677158781] [2024-10-13 06:10:24,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677158781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:24,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:24,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:10:24,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418620858] [2024-10-13 06:10:24,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:24,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:10:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:10:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:10:24,472 INFO L87 Difference]: Start difference. First operand 547 states and 752 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:24,841 INFO L93 Difference]: Finished difference Result 1057 states and 1469 transitions. [2024-10-13 06:10:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-10-13 06:10:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:24,847 INFO L225 Difference]: With dead ends: 1057 [2024-10-13 06:10:24,847 INFO L226 Difference]: Without dead ends: 601 [2024-10-13 06:10:24,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:10:24,850 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 130 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:24,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 375 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:10:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-10-13 06:10:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 550. [2024-10-13 06:10:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 459 states have (on average 1.2875816993464053) internal successors, (591), 463 states have internal predecessors, (591), 80 states have call successors, (80), 10 states have call predecessors, (80), 10 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-13 06:10:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 751 transitions. [2024-10-13 06:10:24,947 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 751 transitions. Word has length 133 [2024-10-13 06:10:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:24,948 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 751 transitions. [2024-10-13 06:10:24,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 751 transitions. [2024-10-13 06:10:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:10:24,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:24,951 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:24,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 06:10:24,951 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:24,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:24,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1375518506, now seen corresponding path program 1 times [2024-10-13 06:10:24,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:24,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291703825] [2024-10-13 06:10:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:24,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:25,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:25,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291703825] [2024-10-13 06:10:25,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291703825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:25,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:25,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:10:25,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168202756] [2024-10-13 06:10:25,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:25,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:10:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:25,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:10:25,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:10:25,455 INFO L87 Difference]: Start difference. First operand 550 states and 751 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:25,872 INFO L93 Difference]: Finished difference Result 1118 states and 1529 transitions. [2024-10-13 06:10:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:10:25,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 133 [2024-10-13 06:10:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:25,877 INFO L225 Difference]: With dead ends: 1118 [2024-10-13 06:10:25,877 INFO L226 Difference]: Without dead ends: 667 [2024-10-13 06:10:25,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:10:25,881 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 192 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:25,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 698 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:10:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-10-13 06:10:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 468. [2024-10-13 06:10:25,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 389 states have (on average 1.275064267352185) internal successors, (496), 390 states have internal predecessors, (496), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 632 transitions. [2024-10-13 06:10:25,954 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 632 transitions. Word has length 133 [2024-10-13 06:10:25,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:25,954 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 632 transitions. [2024-10-13 06:10:25,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-13 06:10:25,955 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 632 transitions. [2024-10-13 06:10:25,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 06:10:25,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:25,956 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:25,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:10:25,956 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:25,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1662788159, now seen corresponding path program 1 times [2024-10-13 06:10:25,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:25,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372238864] [2024-10-13 06:10:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:26,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372238864] [2024-10-13 06:10:26,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372238864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:26,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:26,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:10:26,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979289834] [2024-10-13 06:10:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:26,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:10:26,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:26,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:10:26,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:10:26,058 INFO L87 Difference]: Start difference. First operand 468 states and 632 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:26,138 INFO L93 Difference]: Finished difference Result 845 states and 1156 transitions. [2024-10-13 06:10:26,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:10:26,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-13 06:10:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:26,143 INFO L225 Difference]: With dead ends: 845 [2024-10-13 06:10:26,144 INFO L226 Difference]: Without dead ends: 472 [2024-10-13 06:10:26,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:10:26,146 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:26,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-13 06:10:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-10-13 06:10:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 393 states have (on average 1.272264631043257) internal successors, (500), 394 states have internal predecessors, (500), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 636 transitions. [2024-10-13 06:10:26,216 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 636 transitions. Word has length 135 [2024-10-13 06:10:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:26,217 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 636 transitions. [2024-10-13 06:10:26,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 636 transitions. [2024-10-13 06:10:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 06:10:26,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:26,219 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:26,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:10:26,219 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:26,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:26,219 INFO L85 PathProgramCache]: Analyzing trace with hash -857171775, now seen corresponding path program 1 times [2024-10-13 06:10:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:26,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751363372] [2024-10-13 06:10:26,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:26,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:26,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751363372] [2024-10-13 06:10:26,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751363372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:26,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:26,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:10:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872243715] [2024-10-13 06:10:26,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:26,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:10:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:26,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:10:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:26,418 INFO L87 Difference]: Start difference. First operand 472 states and 636 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:26,541 INFO L93 Difference]: Finished difference Result 486 states and 652 transitions. [2024-10-13 06:10:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-13 06:10:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:26,545 INFO L225 Difference]: With dead ends: 486 [2024-10-13 06:10:26,546 INFO L226 Difference]: Without dead ends: 484 [2024-10-13 06:10:26,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:26,547 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:26,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 504 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:26,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-13 06:10:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-10-13 06:10:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 405 states have (on average 1.2641975308641975) internal successors, (512), 406 states have internal predecessors, (512), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 648 transitions. [2024-10-13 06:10:26,616 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 648 transitions. Word has length 135 [2024-10-13 06:10:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:26,617 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 648 transitions. [2024-10-13 06:10:26,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 648 transitions. [2024-10-13 06:10:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-13 06:10:26,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:26,618 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:26,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:10:26,619 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:26,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash 441324358, now seen corresponding path program 1 times [2024-10-13 06:10:26,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:26,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542307189] [2024-10-13 06:10:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 06:10:26,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:26,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542307189] [2024-10-13 06:10:26,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542307189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:26,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:26,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:10:26,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560212041] [2024-10-13 06:10:26,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:26,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:10:26,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:26,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:10:26,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:10:26,844 INFO L87 Difference]: Start difference. First operand 484 states and 648 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:26,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:26,949 INFO L93 Difference]: Finished difference Result 501 states and 667 transitions. [2024-10-13 06:10:26,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:10:26,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-10-13 06:10:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:26,953 INFO L225 Difference]: With dead ends: 501 [2024-10-13 06:10:26,954 INFO L226 Difference]: Without dead ends: 499 [2024-10-13 06:10:26,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:10:26,955 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:26,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:26,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-13 06:10:27,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 487. [2024-10-13 06:10:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 408 states have (on average 1.2622549019607843) internal successors, (515), 409 states have internal predecessors, (515), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 651 transitions. [2024-10-13 06:10:27,022 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 651 transitions. Word has length 137 [2024-10-13 06:10:27,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:27,023 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 651 transitions. [2024-10-13 06:10:27,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:27,023 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 651 transitions. [2024-10-13 06:10:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-13 06:10:27,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:27,027 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-10-13 06:10:27,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:10:27,028 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:27,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1504930795, now seen corresponding path program 1 times [2024-10-13 06:10:27,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642730754] [2024-10-13 06:10:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-10-13 06:10:27,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642730754] [2024-10-13 06:10:27,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642730754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:27,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:27,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:27,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60731916] [2024-10-13 06:10:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:27,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:27,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:27,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:27,370 INFO L87 Difference]: Start difference. First operand 487 states and 651 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:27,517 INFO L93 Difference]: Finished difference Result 794 states and 1073 transitions. [2024-10-13 06:10:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:27,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 260 [2024-10-13 06:10:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:27,521 INFO L225 Difference]: With dead ends: 794 [2024-10-13 06:10:27,521 INFO L226 Difference]: Without dead ends: 529 [2024-10-13 06:10:27,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:27,523 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 32 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:27,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 442 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:10:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-10-13 06:10:27,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 487. [2024-10-13 06:10:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 408 states have (on average 1.2622549019607843) internal successors, (515), 409 states have internal predecessors, (515), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 651 transitions. [2024-10-13 06:10:27,585 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 651 transitions. Word has length 260 [2024-10-13 06:10:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:27,586 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 651 transitions. [2024-10-13 06:10:27,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 651 transitions. [2024-10-13 06:10:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-13 06:10:27,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:27,589 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-10-13 06:10:27,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:10:27,589 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:27,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1279625297, now seen corresponding path program 1 times [2024-10-13 06:10:27,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:27,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496319876] [2024-10-13 06:10:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:27,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-10-13 06:10:27,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496319876] [2024-10-13 06:10:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496319876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:27,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:27,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:27,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006290756] [2024-10-13 06:10:27,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:27,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:27,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:27,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:27,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:27,902 INFO L87 Difference]: Start difference. First operand 487 states and 651 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:28,064 INFO L93 Difference]: Finished difference Result 794 states and 1073 transitions. [2024-10-13 06:10:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 260 [2024-10-13 06:10:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:28,069 INFO L225 Difference]: With dead ends: 794 [2024-10-13 06:10:28,069 INFO L226 Difference]: Without dead ends: 529 [2024-10-13 06:10:28,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:28,072 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 32 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:28,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 345 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:10:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-10-13 06:10:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 490. [2024-10-13 06:10:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 411 states have (on average 1.2603406326034063) internal successors, (518), 412 states have internal predecessors, (518), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:10:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 654 transitions. [2024-10-13 06:10:28,172 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 654 transitions. Word has length 260 [2024-10-13 06:10:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:28,173 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 654 transitions. [2024-10-13 06:10:28,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 654 transitions. [2024-10-13 06:10:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-13 06:10:28,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:28,177 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-10-13 06:10:28,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:10:28,178 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:28,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2088971923, now seen corresponding path program 1 times [2024-10-13 06:10:28,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:28,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116226278] [2024-10-13 06:10:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:28,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 4 proven. 41 refuted. 0 times theorem prover too weak. 2527 trivial. 0 not checked. [2024-10-13 06:10:29,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116226278] [2024-10-13 06:10:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116226278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:29,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233118826] [2024-10-13 06:10:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:29,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:29,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:29,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:10:29,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 06:10:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:29,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 06:10:29,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:31,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:32,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-10-13 06:10:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 4 proven. 743 refuted. 0 times theorem prover too weak. 1825 trivial. 0 not checked. [2024-10-13 06:10:32,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:10:32,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2024-10-13 06:10:32,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233118826] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:32,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:10:32,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2024-10-13 06:10:32,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754775855] [2024-10-13 06:10:32,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 06:10:32,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:10:32,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:10:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:10:32,387 INFO L87 Difference]: Start difference. First operand 490 states and 654 transitions. Second operand has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2024-10-13 06:10:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:33,048 INFO L93 Difference]: Finished difference Result 1111 states and 1495 transitions. [2024-10-13 06:10:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:10:33,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) Word has length 260 [2024-10-13 06:10:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:33,054 INFO L225 Difference]: With dead ends: 1111 [2024-10-13 06:10:33,054 INFO L226 Difference]: Without dead ends: 717 [2024-10-13 06:10:33,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2024-10-13 06:10:33,057 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 146 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:33,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 724 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:10:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-10-13 06:10:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 712. [2024-10-13 06:10:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 591 states have (on average 1.2470389170896785) internal successors, (737), 595 states have internal predecessors, (737), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:33,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 945 transitions. [2024-10-13 06:10:33,176 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 945 transitions. Word has length 260 [2024-10-13 06:10:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:33,177 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 945 transitions. [2024-10-13 06:10:33,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 6 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2024-10-13 06:10:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 945 transitions. [2024-10-13 06:10:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-13 06:10:33,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:33,181 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-10-13 06:10:33,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 06:10:33,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:33,386 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:33,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:33,386 INFO L85 PathProgramCache]: Analyzing trace with hash -599566927, now seen corresponding path program 1 times [2024-10-13 06:10:33,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:33,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600976686] [2024-10-13 06:10:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:33,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-10-13 06:10:33,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600976686] [2024-10-13 06:10:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600976686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:33,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:33,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:10:33,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529093290] [2024-10-13 06:10:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:33,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:10:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:10:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:33,717 INFO L87 Difference]: Start difference. First operand 712 states and 945 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:33,961 INFO L93 Difference]: Finished difference Result 1124 states and 1499 transitions. [2024-10-13 06:10:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 260 [2024-10-13 06:10:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:33,967 INFO L225 Difference]: With dead ends: 1124 [2024-10-13 06:10:33,968 INFO L226 Difference]: Without dead ends: 705 [2024-10-13 06:10:33,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:10:33,971 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 30 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:33,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 555 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:10:33,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-10-13 06:10:34,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 700. [2024-10-13 06:10:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 579 states have (on average 1.2366148531951642) internal successors, (716), 583 states have internal predecessors, (716), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 924 transitions. [2024-10-13 06:10:34,079 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 924 transitions. Word has length 260 [2024-10-13 06:10:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:34,080 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 924 transitions. [2024-10-13 06:10:34,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 924 transitions. [2024-10-13 06:10:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-10-13 06:10:34,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:34,084 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:34,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:10:34,084 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:34,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2099256637, now seen corresponding path program 1 times [2024-10-13 06:10:34,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:34,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114342404] [2024-10-13 06:10:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:34,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2574 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-10-13 06:10:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:34,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114342404] [2024-10-13 06:10:34,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114342404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:34,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:34,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177015809] [2024-10-13 06:10:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:34,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:34,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:34,314 INFO L87 Difference]: Start difference. First operand 700 states and 924 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:34,465 INFO L93 Difference]: Finished difference Result 1387 states and 1829 transitions. [2024-10-13 06:10:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:34,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 262 [2024-10-13 06:10:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:34,471 INFO L225 Difference]: With dead ends: 1387 [2024-10-13 06:10:34,471 INFO L226 Difference]: Without dead ends: 783 [2024-10-13 06:10:34,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:34,473 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 41 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:34,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 346 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-10-13 06:10:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 679. [2024-10-13 06:10:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 558 states have (on average 1.2240143369175627) internal successors, (683), 562 states have internal predecessors, (683), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 891 transitions. [2024-10-13 06:10:34,633 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 891 transitions. Word has length 262 [2024-10-13 06:10:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:34,634 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 891 transitions. [2024-10-13 06:10:34,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 891 transitions. [2024-10-13 06:10:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-10-13 06:10:34,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:34,638 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:10:34,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:10:34,639 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:34,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash -685299455, now seen corresponding path program 1 times [2024-10-13 06:10:34,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:34,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845393548] [2024-10-13 06:10:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:34,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2574 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-10-13 06:10:34,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:34,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845393548] [2024-10-13 06:10:34,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845393548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:34,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:34,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:34,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487080522] [2024-10-13 06:10:34,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:34,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:34,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:34,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:34,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:34,931 INFO L87 Difference]: Start difference. First operand 679 states and 891 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:35,076 INFO L93 Difference]: Finished difference Result 1252 states and 1648 transitions. [2024-10-13 06:10:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 262 [2024-10-13 06:10:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:35,081 INFO L225 Difference]: With dead ends: 1252 [2024-10-13 06:10:35,082 INFO L226 Difference]: Without dead ends: 669 [2024-10-13 06:10:35,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:35,085 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 27 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:35,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 379 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-13 06:10:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2024-10-13 06:10:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 546 states have (on average 1.2032967032967032) internal successors, (657), 550 states have internal predecessors, (657), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 865 transitions. [2024-10-13 06:10:35,189 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 865 transitions. Word has length 262 [2024-10-13 06:10:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:35,189 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 865 transitions. [2024-10-13 06:10:35,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 865 transitions. [2024-10-13 06:10:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-10-13 06:10:35,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:35,193 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 06:10:35,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:10:35,195 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:35,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1847414564, now seen corresponding path program 1 times [2024-10-13 06:10:35,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:35,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3267913] [2024-10-13 06:10:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 06:10:35,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524262507] [2024-10-13 06:10:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:35,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:35,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:35,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:10:35,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 06:10:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-13 06:10:35,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:38,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 06:10:39,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 06:10:40,268 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-10-13 06:10:40,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-10-13 06:10:40,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-13 06:10:41,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-13 06:10:42,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:43,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2024-10-13 06:10:43,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2024-10-13 06:10:44,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:44,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 18 [2024-10-13 06:10:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2574 backedges. 5 proven. 1632 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-10-13 06:10:44,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:10:44,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 57 [2024-10-13 06:10:44,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 49 [2024-10-13 06:10:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3267913] [2024-10-13 06:10:44,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 06:10:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524262507] [2024-10-13 06:10:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524262507] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:44,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 06:10:44,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 06:10:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583294602] [2024-10-13 06:10:44,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 06:10:44,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:10:44,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:44,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:10:44,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:10:44,764 INFO L87 Difference]: Start difference. First operand 667 states and 865 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-10-13 06:10:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:46,648 INFO L93 Difference]: Finished difference Result 1611 states and 2086 transitions. [2024-10-13 06:10:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:10:46,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 263 [2024-10-13 06:10:46,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:46,658 INFO L225 Difference]: With dead ends: 1611 [2024-10-13 06:10:46,659 INFO L226 Difference]: Without dead ends: 1040 [2024-10-13 06:10:46,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2024-10-13 06:10:46,666 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 306 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:46,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 414 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 06:10:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-10-13 06:10:46,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 751. [2024-10-13 06:10:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 630 states have (on average 1.2079365079365079) internal successors, (761), 634 states have internal predecessors, (761), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 969 transitions. [2024-10-13 06:10:46,777 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 969 transitions. Word has length 263 [2024-10-13 06:10:46,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:46,778 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 969 transitions. [2024-10-13 06:10:46,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-10-13 06:10:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 969 transitions. [2024-10-13 06:10:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-10-13 06:10:46,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:46,782 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-10-13 06:10:46,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 06:10:46,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:46,984 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:46,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash 567501661, now seen corresponding path program 1 times [2024-10-13 06:10:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:46,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282391425] [2024-10-13 06:10:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:46,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:10:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:10:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:10:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:10:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 06:10:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 06:10:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 06:10:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 06:10:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 06:10:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 06:10:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 06:10:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 06:10:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-13 06:10:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 06:10:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 06:10:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-13 06:10:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 06:10:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 06:10:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 06:10:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 06:10:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-13 06:10:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-13 06:10:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2574 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2563 trivial. 0 not checked. [2024-10-13 06:10:47,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:47,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282391425] [2024-10-13 06:10:47,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282391425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:47,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:47,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:10:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061174046] [2024-10-13 06:10:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:47,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:10:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:10:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:47,298 INFO L87 Difference]: Start difference. First operand 751 states and 969 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:47,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:47,512 INFO L93 Difference]: Finished difference Result 1248 states and 1607 transitions. [2024-10-13 06:10:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:10:47,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 263 [2024-10-13 06:10:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:47,518 INFO L225 Difference]: With dead ends: 1248 [2024-10-13 06:10:47,518 INFO L226 Difference]: Without dead ends: 859 [2024-10-13 06:10:47,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:10:47,521 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 40 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:47,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 569 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:10:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-10-13 06:10:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 726. [2024-10-13 06:10:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 605 states have (on average 1.1917355371900826) internal successors, (721), 609 states have internal predecessors, (721), 104 states have call successors, (104), 16 states have call predecessors, (104), 16 states have return successors, (104), 100 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-13 06:10:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 929 transitions. [2024-10-13 06:10:47,632 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 929 transitions. Word has length 263 [2024-10-13 06:10:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:47,633 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 929 transitions. [2024-10-13 06:10:47,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-13 06:10:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 929 transitions. [2024-10-13 06:10:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-13 06:10:47,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:47,635 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-10-13 06:10:47,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 06:10:47,636 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:47,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:47,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1855011082, now seen corresponding path program 1 times [2024-10-13 06:10:47,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:47,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740880641] [2024-10-13 06:10:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 06:10:47,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805729283] [2024-10-13 06:10:47,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:47,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:47,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:47,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:10:47,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 06:10:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-10-13 06:10:48,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:51,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:52,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:10:52,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 06:10:53,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-13 06:10:53,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2024-10-13 06:10:54,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2024-10-13 06:10:54,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-13 06:10:54,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-10-13 06:10:54,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:54,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7