./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-66.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-66.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 d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:10:29,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:10:29,424 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:10:29,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:10:29,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:10:29,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:10:29,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:10:29,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:10:29,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:10:29,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:10:29,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:10:29,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:10:29,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:10:29,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:10:29,464 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:10:29,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:10:29,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:10:29,467 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:10:29,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:10:29,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:10:29,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:10:29,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:10:29,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:10:29,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:10:29,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:10:29,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:10:29,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:10:29,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:10:29,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:10:29,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:10:29,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:10:29,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:10:29,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:10:29,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:10:29,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:10:29,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:10:29,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:10:29,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 [2024-10-13 06:10:29,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:10:29,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:10:29,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:10:29,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:10:29,747 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:10:29,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-13 06:10:31,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:10:31,637 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:10:31,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-13 06:10:31,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0efdab1b0/a6d80aededb74b89adc0f65247870346/FLAGc75118e5e [2024-10-13 06:10:31,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0efdab1b0/a6d80aededb74b89adc0f65247870346 [2024-10-13 06:10:32,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:10:32,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:10:32,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:10:32,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:10:32,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:10:32,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:31" (1/1) ... [2024-10-13 06:10:32,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d39a1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32, skipping insertion in model container [2024-10-13 06:10:32,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:10:31" (1/1) ... [2024-10-13 06:10:32,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:10:32,279 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-66.i[917,930] [2024-10-13 06:10:32,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:10:32,387 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:10:32,400 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-66.i[917,930] [2024-10-13 06:10:32,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:10:32,485 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:10:32,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32 WrapperNode [2024-10-13 06:10:32,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:10:32,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:10:32,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:10:32,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:10:32,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,542 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2024-10-13 06:10:32,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:10:32,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:10:32,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:10:32,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:10:32,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,588 INFO L175 MemorySlicer]: Split 123 memory accesses to 6 slices as follows [2, 8, 8, 73, 7, 25]. 59 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 6, 1, 3]. The 16 writes are split as follows [0, 1, 3, 7, 1, 4]. [2024-10-13 06:10:32,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:10:32,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:10:32,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:10:32,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:10:32,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (1/1) ... [2024-10-13 06:10:32,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:10:32,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:32,653 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 06:10:32,655 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 06:10:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:10:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:10:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:10:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 06:10:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:10:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:10:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:10:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 06:10:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:10:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:10:32,844 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:10:32,847 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:10:33,203 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-13 06:10:33,204 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:10:33,242 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:10:33,243 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:10:33,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:33 BoogieIcfgContainer [2024-10-13 06:10:33,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:10:33,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:10:33,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:10:33,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:10:33,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:10:31" (1/3) ... [2024-10-13 06:10:33,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590c5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:33, skipping insertion in model container [2024-10-13 06:10:33,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:10:32" (2/3) ... [2024-10-13 06:10:33,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590c5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:10:33, skipping insertion in model container [2024-10-13 06:10:33,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:10:33" (3/3) ... [2024-10-13 06:10:33,250 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-13 06:10:33,264 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:10:33,264 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:10:33,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:10:33,338 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;@47a0b0e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:10:33,338 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:10:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:10:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:33,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:33,355 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:33,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:33,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1512914370, now seen corresponding path program 1 times [2024-10-13 06:10:33,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:33,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688270911] [2024-10-13 06:10:33,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:33,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:33,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:33,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688270911] [2024-10-13 06:10:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688270911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:33,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:33,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:10:33,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732259547] [2024-10-13 06:10:33,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:33,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:10:33,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:34,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:10:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:10:34,034 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:10:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:34,120 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2024-10-13 06:10:34,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:10:34,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-13 06:10:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:34,135 INFO L225 Difference]: With dead ends: 155 [2024-10-13 06:10:34,135 INFO L226 Difference]: Without dead ends: 77 [2024-10-13 06:10:34,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 06:10:34,144 INFO L432 NwaCegarLoop]: 109 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, 109 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 06:10:34,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-13 06:10:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-13 06:10:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:10:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2024-10-13 06:10:34,186 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2024-10-13 06:10:34,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:34,187 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2024-10-13 06:10:34,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:10:34,188 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2024-10-13 06:10:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:34,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:34,191 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:34,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:10:34,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:34,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2134161318, now seen corresponding path program 1 times [2024-10-13 06:10:34,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:34,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234681405] [2024-10-13 06:10:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:34,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:34,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:34,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234681405] [2024-10-13 06:10:34,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234681405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:34,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:34,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:10:34,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256291493] [2024-10-13 06:10:34,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:10:34,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:10:34,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:10:34,641 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:34,715 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2024-10-13 06:10:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:10:34,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-13 06:10:34,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:34,720 INFO L225 Difference]: With dead ends: 156 [2024-10-13 06:10:34,720 INFO L226 Difference]: Without dead ends: 80 [2024-10-13 06:10:34,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:10:34,724 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:34,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 311 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:34,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-13 06:10:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2024-10-13 06:10:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:10:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2024-10-13 06:10:34,736 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2024-10-13 06:10:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:34,738 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2024-10-13 06:10:34,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2024-10-13 06:10:34,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:34,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:34,740 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:34,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:10:34,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:34,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2103547676, now seen corresponding path program 1 times [2024-10-13 06:10:34,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:34,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354382360] [2024-10-13 06:10:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:34,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:35,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:35,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354382360] [2024-10-13 06:10:35,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354382360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:35,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:35,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:10:35,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369731558] [2024-10-13 06:10:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:35,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:10:35,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:35,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:10:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:10:35,045 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:35,102 INFO L93 Difference]: Finished difference Result 160 states and 233 transitions. [2024-10-13 06:10:35,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:10:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-13 06:10:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:35,104 INFO L225 Difference]: With dead ends: 160 [2024-10-13 06:10:35,104 INFO L226 Difference]: Without dead ends: 82 [2024-10-13 06:10:35,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:10:35,105 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:35,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 315 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-13 06:10:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-10-13 06:10:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:10:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-10-13 06:10:35,157 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2024-10-13 06:10:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:35,158 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-10-13 06:10:35,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-10-13 06:10:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:35,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:35,165 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:35,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:10:35,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:35,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2103488094, now seen corresponding path program 1 times [2024-10-13 06:10:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531426693] [2024-10-13 06:10:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:35,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:37,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:38,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:38,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531426693] [2024-10-13 06:10:38,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531426693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:38,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:38,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:10:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142386321] [2024-10-13 06:10:38,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:38,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:10:38,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:10:38,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:10:38,079 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:10:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:41,544 INFO L93 Difference]: Finished difference Result 483 states and 679 transitions. [2024-10-13 06:10:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-13 06:10:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2024-10-13 06:10:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:41,555 INFO L225 Difference]: With dead ends: 483 [2024-10-13 06:10:41,556 INFO L226 Difference]: Without dead ends: 403 [2024-10-13 06:10:41,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 06:10:41,562 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 1162 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:41,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 563 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 06:10:41,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-10-13 06:10:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 181. [2024-10-13 06:10:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 146 states have (on average 1.3630136986301369) internal successors, (199), 147 states have internal predecessors, (199), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 06:10:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 259 transitions. [2024-10-13 06:10:41,638 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 259 transitions. Word has length 104 [2024-10-13 06:10:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 259 transitions. [2024-10-13 06:10:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:10:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 259 transitions. [2024-10-13 06:10:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:41,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:41,645 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:41,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:10:41,645 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:41,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:41,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1845322656, now seen corresponding path program 1 times [2024-10-13 06:10:41,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:41,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092849000] [2024-10-13 06:10:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:42,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:42,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092849000] [2024-10-13 06:10:42,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092849000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:42,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:42,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:42,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670991961] [2024-10-13 06:10:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:42,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:42,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:42,152 INFO L87 Difference]: Start difference. First operand 181 states and 259 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:42,368 INFO L93 Difference]: Finished difference Result 382 states and 543 transitions. [2024-10-13 06:10:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-13 06:10:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:42,374 INFO L225 Difference]: With dead ends: 382 [2024-10-13 06:10:42,375 INFO L226 Difference]: Without dead ends: 264 [2024-10-13 06:10:42,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:42,376 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:42,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:10:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-13 06:10:42,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 187. [2024-10-13 06:10:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 152 states have (on average 1.361842105263158) internal successors, (207), 153 states have internal predecessors, (207), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 06:10:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 267 transitions. [2024-10-13 06:10:42,425 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 267 transitions. Word has length 104 [2024-10-13 06:10:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:42,427 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 267 transitions. [2024-10-13 06:10:42,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 267 transitions. [2024-10-13 06:10:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:42,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:42,429 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:42,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:10:42,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:42,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1170410848, now seen corresponding path program 1 times [2024-10-13 06:10:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:42,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261448134] [2024-10-13 06:10:42,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:42,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:42,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:42,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261448134] [2024-10-13 06:10:42,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261448134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:42,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:42,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:10:42,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976478448] [2024-10-13 06:10:42,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:42,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:10:42,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:42,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:10:42,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:42,864 INFO L87 Difference]: Start difference. First operand 187 states and 267 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:43,200 INFO L93 Difference]: Finished difference Result 356 states and 503 transitions. [2024-10-13 06:10:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-13 06:10:43,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:43,205 INFO L225 Difference]: With dead ends: 356 [2024-10-13 06:10:43,205 INFO L226 Difference]: Without dead ends: 232 [2024-10-13 06:10:43,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:10:43,207 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 189 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:43,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 331 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:10:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-13 06:10:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 145. [2024-10-13 06:10:43,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 112 states have (on average 1.3125) internal successors, (147), 112 states have internal predecessors, (147), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:10:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 203 transitions. [2024-10-13 06:10:43,248 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 203 transitions. Word has length 104 [2024-10-13 06:10:43,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:43,249 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 203 transitions. [2024-10-13 06:10:43,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 203 transitions. [2024-10-13 06:10:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-13 06:10:43,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:43,254 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:43,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:10:43,254 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:43,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1428576286, now seen corresponding path program 1 times [2024-10-13 06:10:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226461124] [2024-10-13 06:10:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:44,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:44,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226461124] [2024-10-13 06:10:44,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226461124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:44,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:44,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:10:44,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603304321] [2024-10-13 06:10:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:44,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:10:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:44,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:10:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:10:44,660 INFO L87 Difference]: Start difference. First operand 145 states and 203 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:10:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:45,147 INFO L93 Difference]: Finished difference Result 296 states and 412 transitions. [2024-10-13 06:10:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:10:45,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 104 [2024-10-13 06:10:45,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:45,150 INFO L225 Difference]: With dead ends: 296 [2024-10-13 06:10:45,150 INFO L226 Difference]: Without dead ends: 206 [2024-10-13 06:10:45,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:10:45,152 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 216 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:45,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 892 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:10:45,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-13 06:10:45,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2024-10-13 06:10:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 159 states have internal predecessors, (206), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 282 transitions. [2024-10-13 06:10:45,190 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 282 transitions. Word has length 104 [2024-10-13 06:10:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:45,191 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 282 transitions. [2024-10-13 06:10:45,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:10:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 282 transitions. [2024-10-13 06:10:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-13 06:10:45,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:45,192 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:45,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:10:45,192 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:45,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1594273804, now seen corresponding path program 1 times [2024-10-13 06:10:45,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:45,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169741123] [2024-10-13 06:10:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:45,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:45,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:45,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169741123] [2024-10-13 06:10:45,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169741123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:45,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:45,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:10:45,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478209665] [2024-10-13 06:10:45,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:45,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:10:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:10:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:10:45,272 INFO L87 Difference]: Start difference. First operand 203 states and 282 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:45,315 INFO L93 Difference]: Finished difference Result 353 states and 492 transitions. [2024-10-13 06:10:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:10:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-10-13 06:10:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:45,318 INFO L225 Difference]: With dead ends: 353 [2024-10-13 06:10:45,318 INFO L226 Difference]: Without dead ends: 205 [2024-10-13 06:10:45,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 06:10:45,319 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 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 06:10:45,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-13 06:10:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-13 06:10:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 160 states have (on average 1.3) internal successors, (208), 161 states have internal predecessors, (208), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 284 transitions. [2024-10-13 06:10:45,393 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 284 transitions. Word has length 107 [2024-10-13 06:10:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:45,393 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 284 transitions. [2024-10-13 06:10:45,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 284 transitions. [2024-10-13 06:10:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-13 06:10:45,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:45,395 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:45,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:10:45,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:45,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:45,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1336108366, now seen corresponding path program 1 times [2024-10-13 06:10:45,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:45,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279988076] [2024-10-13 06:10:45,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:45,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:45,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:45,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279988076] [2024-10-13 06:10:45,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279988076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:45,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:45,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:45,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167909325] [2024-10-13 06:10:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:45,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:45,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:45,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:45,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:45,656 INFO L87 Difference]: Start difference. First operand 205 states and 284 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:45,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:45,758 INFO L93 Difference]: Finished difference Result 361 states and 500 transitions. [2024-10-13 06:10:45,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:45,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-10-13 06:10:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:45,761 INFO L225 Difference]: With dead ends: 361 [2024-10-13 06:10:45,761 INFO L226 Difference]: Without dead ends: 211 [2024-10-13 06:10:45,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:45,762 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:45,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 413 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:10:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-13 06:10:45,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-10-13 06:10:45,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2891566265060241) internal successors, (214), 167 states have internal predecessors, (214), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 290 transitions. [2024-10-13 06:10:45,802 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 290 transitions. Word has length 107 [2024-10-13 06:10:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:45,804 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 290 transitions. [2024-10-13 06:10:45,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 290 transitions. [2024-10-13 06:10:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 06:10:45,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:45,806 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:45,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 06:10:45,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:45,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash 476364943, now seen corresponding path program 1 times [2024-10-13 06:10:45,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:45,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805914574] [2024-10-13 06:10:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:45,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:46,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:46,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805914574] [2024-10-13 06:10:46,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805914574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:46,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:46,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:10:46,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811288050] [2024-10-13 06:10:46,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:46,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:10:46,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:46,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:10:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:10:46,440 INFO L87 Difference]: Start difference. First operand 211 states and 290 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:46,794 INFO L93 Difference]: Finished difference Result 527 states and 724 transitions. [2024-10-13 06:10:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:10:46,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-13 06:10:46,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:46,797 INFO L225 Difference]: With dead ends: 527 [2024-10-13 06:10:46,797 INFO L226 Difference]: Without dead ends: 371 [2024-10-13 06:10:46,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:10:46,799 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 125 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:46,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 374 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:10:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-13 06:10:46,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 231. [2024-10-13 06:10:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2956989247311828) internal successors, (241), 187 states have internal predecessors, (241), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 317 transitions. [2024-10-13 06:10:46,850 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 317 transitions. Word has length 109 [2024-10-13 06:10:46,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:46,850 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 317 transitions. [2024-10-13 06:10:46,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:46,851 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 317 transitions. [2024-10-13 06:10:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 06:10:46,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:46,853 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:46,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 06:10:46,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:46,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -534752307, now seen corresponding path program 1 times [2024-10-13 06:10:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:46,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284187026] [2024-10-13 06:10:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:47,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284187026] [2024-10-13 06:10:47,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284187026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:47,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:47,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:10:47,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999197236] [2024-10-13 06:10:47,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:47,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:10:47,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:47,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:10:47,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:10:47,104 INFO L87 Difference]: Start difference. First operand 231 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:47,188 INFO L93 Difference]: Finished difference Result 473 states and 650 transitions. [2024-10-13 06:10:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:10:47,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-13 06:10:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:47,191 INFO L225 Difference]: With dead ends: 473 [2024-10-13 06:10:47,191 INFO L226 Difference]: Without dead ends: 317 [2024-10-13 06:10:47,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:47,193 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 46 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:47,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 446 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:10:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-10-13 06:10:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 253. [2024-10-13 06:10:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 208 states have (on average 1.3125) internal successors, (273), 209 states have internal predecessors, (273), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 349 transitions. [2024-10-13 06:10:47,237 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 349 transitions. Word has length 109 [2024-10-13 06:10:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:47,237 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 349 transitions. [2024-10-13 06:10:47,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 349 transitions. [2024-10-13 06:10:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 06:10:47,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:47,239 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:47,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 06:10:47,239 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1208255749, now seen corresponding path program 1 times [2024-10-13 06:10:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:47,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99270926] [2024-10-13 06:10:47,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:47,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:47,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:47,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99270926] [2024-10-13 06:10:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99270926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:47,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:47,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:10:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366589613] [2024-10-13 06:10:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:47,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:10:47,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:10:47,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:10:47,795 INFO L87 Difference]: Start difference. First operand 253 states and 349 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:48,053 INFO L93 Difference]: Finished difference Result 371 states and 507 transitions. [2024-10-13 06:10:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:48,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-13 06:10:48,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:48,056 INFO L225 Difference]: With dead ends: 371 [2024-10-13 06:10:48,056 INFO L226 Difference]: Without dead ends: 369 [2024-10-13 06:10:48,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:10:48,056 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 56 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:48,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 387 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:10:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-10-13 06:10:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 335. [2024-10-13 06:10:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 290 states have (on average 1.3482758620689654) internal successors, (391), 291 states have internal predecessors, (391), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 467 transitions. [2024-10-13 06:10:48,106 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 467 transitions. Word has length 109 [2024-10-13 06:10:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:48,107 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 467 transitions. [2024-10-13 06:10:48,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:10:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 467 transitions. [2024-10-13 06:10:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 06:10:48,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:48,109 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:48,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:10:48,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:48,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1208196167, now seen corresponding path program 1 times [2024-10-13 06:10:48,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:48,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949379261] [2024-10-13 06:10:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:48,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:10:48,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:48,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949379261] [2024-10-13 06:10:48,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949379261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:10:48,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:10:48,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:10:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472561563] [2024-10-13 06:10:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:10:48,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:10:48,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:48,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:10:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:10:48,746 INFO L87 Difference]: Start difference. First operand 335 states and 467 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:10:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:10:49,061 INFO L93 Difference]: Finished difference Result 669 states and 924 transitions. [2024-10-13 06:10:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:10:49,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-10-13 06:10:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:10:49,067 INFO L225 Difference]: With dead ends: 669 [2024-10-13 06:10:49,067 INFO L226 Difference]: Without dead ends: 419 [2024-10-13 06:10:49,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:10:49,069 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 299 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:10:49,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 302 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:10:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-13 06:10:49,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 381. [2024-10-13 06:10:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 336 states have (on average 1.3541666666666667) internal successors, (455), 337 states have internal predecessors, (455), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-13 06:10:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 531 transitions. [2024-10-13 06:10:49,143 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 531 transitions. Word has length 109 [2024-10-13 06:10:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:10:49,144 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 531 transitions. [2024-10-13 06:10:49,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:10:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 531 transitions. [2024-10-13 06:10:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 06:10:49,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:10:49,146 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:49,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:10:49,146 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:10:49,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:10:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1150937865, now seen corresponding path program 1 times [2024-10-13 06:10:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:10:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639626918] [2024-10-13 06:10:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:10:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:10:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:10:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:10:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:10:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:10:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:10:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:10:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:10:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:10:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:10:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:10:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:10:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:10:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:10:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-13 06:10:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:10:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639626918] [2024-10-13 06:10:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639626918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134070355] [2024-10-13 06:10:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:10:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:10:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:10:49,810 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 06:10:49,816 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 06:10:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:10:49,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-13 06:10:49,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:10:50,828 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 06:10:51,078 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 29 treesize of output 13 [2024-10-13 06:10:51,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:51,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2024-10-13 06:10:51,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 06:10:51,286 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2024-10-13 06:10:51,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 80 [2024-10-13 06:10:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 71 proven. 99 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-10-13 06:10:51,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:10:51,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:10:51,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2024-10-13 06:10:55,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134070355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:10:55,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:10:55,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2024-10-13 06:10:55,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382048868] [2024-10-13 06:10:55,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 06:10:55,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-13 06:10:55,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:10:55,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-13 06:10:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=418, Unknown=1, NotChecked=0, Total=506 [2024-10-13 06:10:55,924 INFO L87 Difference]: Start difference. First operand 381 states and 531 transitions. Second operand has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-10-13 06:11:01,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 06:11:05,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 06:11:10,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 06:11:14,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 06:11:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:14,572 INFO L93 Difference]: Finished difference Result 726 states and 989 transitions. [2024-10-13 06:11:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 06:11:14,573 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) Word has length 109 [2024-10-13 06:11:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:14,577 INFO L225 Difference]: With dead ends: 726 [2024-10-13 06:11:14,577 INFO L226 Difference]: Without dead ends: 412 [2024-10-13 06:11:14,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=327, Invalid=1078, Unknown=1, NotChecked=0, Total=1406 [2024-10-13 06:11:14,583 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 698 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 214 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:14,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 611 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 399 Invalid, 5 Unknown, 0 Unchecked, 17.6s Time] [2024-10-13 06:11:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-13 06:11:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 278. [2024-10-13 06:11:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.3070539419087137) internal successors, (315), 241 states have internal predecessors, (315), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 371 transitions. [2024-10-13 06:11:14,657 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 371 transitions. Word has length 109 [2024-10-13 06:11:14,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:14,658 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 371 transitions. [2024-10-13 06:11:14,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-10-13 06:11:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 371 transitions. [2024-10-13 06:11:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-13 06:11:14,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:14,659 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:14,695 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 06:11:14,860 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,SelfDestructingSolverStorable13 [2024-10-13 06:11:14,861 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:14,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:14,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1550086111, now seen corresponding path program 1 times [2024-10-13 06:11:14,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:14,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219474832] [2024-10-13 06:11:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:14,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:15,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:15,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219474832] [2024-10-13 06:11:15,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219474832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:15,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:15,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:11:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154947790] [2024-10-13 06:11:15,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:15,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:11:15,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:11:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:11:15,135 INFO L87 Difference]: Start difference. First operand 278 states and 371 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:15,252 INFO L93 Difference]: Finished difference Result 491 states and 653 transitions. [2024-10-13 06:11:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:11:15,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-13 06:11:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:15,255 INFO L225 Difference]: With dead ends: 491 [2024-10-13 06:11:15,255 INFO L226 Difference]: Without dead ends: 290 [2024-10-13 06:11:15,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:11:15,258 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:15,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 444 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:11:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-10-13 06:11:15,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278. [2024-10-13 06:11:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.2904564315352698) internal successors, (311), 241 states have internal predecessors, (311), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 367 transitions. [2024-10-13 06:11:15,315 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 367 transitions. Word has length 111 [2024-10-13 06:11:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:15,316 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 367 transitions. [2024-10-13 06:11:15,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 367 transitions. [2024-10-13 06:11:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-13 06:11:15,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:15,319 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:15,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:11:15,320 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:15,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash 732437661, now seen corresponding path program 1 times [2024-10-13 06:11:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:15,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049552360] [2024-10-13 06:11:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:15,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:15,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:16,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:16,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049552360] [2024-10-13 06:11:16,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049552360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:16,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:16,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:11:16,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197385334] [2024-10-13 06:11:16,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:16,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:11:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:11:16,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:11:16,014 INFO L87 Difference]: Start difference. First operand 278 states and 367 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:11:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:16,407 INFO L93 Difference]: Finished difference Result 470 states and 624 transitions. [2024-10-13 06:11:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 111 [2024-10-13 06:11:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:16,410 INFO L225 Difference]: With dead ends: 470 [2024-10-13 06:11:16,410 INFO L226 Difference]: Without dead ends: 278 [2024-10-13 06:11:16,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:11:16,412 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 200 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:16,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 239 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:11:16,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-10-13 06:11:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-10-13 06:11:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.2780082987551866) internal successors, (308), 241 states have internal predecessors, (308), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 364 transitions. [2024-10-13 06:11:16,457 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 364 transitions. Word has length 111 [2024-10-13 06:11:16,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:16,459 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 364 transitions. [2024-10-13 06:11:16,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:11:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 364 transitions. [2024-10-13 06:11:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-13 06:11:16,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:16,461 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:16,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:11:16,462 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:16,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1258050976, now seen corresponding path program 1 times [2024-10-13 06:11:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915738502] [2024-10-13 06:11:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:16,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:16,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:17,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:17,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915738502] [2024-10-13 06:11:17,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915738502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:17,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:17,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:11:17,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470471281] [2024-10-13 06:11:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:17,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:11:17,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:17,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:11:17,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:11:17,003 INFO L87 Difference]: Start difference. First operand 278 states and 364 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:17,431 INFO L93 Difference]: Finished difference Result 494 states and 644 transitions. [2024-10-13 06:11:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:11:17,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-10-13 06:11:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:17,433 INFO L225 Difference]: With dead ends: 494 [2024-10-13 06:11:17,433 INFO L226 Difference]: Without dead ends: 302 [2024-10-13 06:11:17,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:11:17,434 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 154 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:17,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 537 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:11:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-13 06:11:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 279. [2024-10-13 06:11:17,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 242 states have (on average 1.2768595041322315) internal successors, (309), 242 states have internal predecessors, (309), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2024-10-13 06:11:17,467 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 365 transitions. Word has length 112 [2024-10-13 06:11:17,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:17,467 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 365 transitions. [2024-10-13 06:11:17,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 365 transitions. [2024-10-13 06:11:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-13 06:11:17,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:17,468 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:17,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:11:17,468 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:17,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash 879133805, now seen corresponding path program 1 times [2024-10-13 06:11:17,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:17,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509298085] [2024-10-13 06:11:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:17,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:17,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509298085] [2024-10-13 06:11:17,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509298085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:17,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:17,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:11:17,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195336477] [2024-10-13 06:11:17,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:17,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:11:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:11:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:11:17,760 INFO L87 Difference]: Start difference. First operand 279 states and 365 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:17,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:17,913 INFO L93 Difference]: Finished difference Result 484 states and 632 transitions. [2024-10-13 06:11:17,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:17,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-13 06:11:17,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:17,915 INFO L225 Difference]: With dead ends: 484 [2024-10-13 06:11:17,915 INFO L226 Difference]: Without dead ends: 291 [2024-10-13 06:11:17,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:11:17,916 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 216 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:17,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 379 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:11:17,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-13 06:11:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2024-10-13 06:11:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 242 states have (on average 1.2727272727272727) internal successors, (308), 242 states have internal predecessors, (308), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 364 transitions. [2024-10-13 06:11:17,949 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 364 transitions. Word has length 114 [2024-10-13 06:11:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:17,950 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 364 transitions. [2024-10-13 06:11:17,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 364 transitions. [2024-10-13 06:11:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-13 06:11:17,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:17,952 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:17,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:11:17,952 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:17,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1580198383, now seen corresponding path program 1 times [2024-10-13 06:11:17,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:17,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161119330] [2024-10-13 06:11:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:17,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:18,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:19,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:19,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161119330] [2024-10-13 06:11:19,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161119330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:19,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:19,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:11:19,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499137003] [2024-10-13 06:11:19,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:19,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:11:19,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:19,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:11:19,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:11:19,066 INFO L87 Difference]: Start difference. First operand 279 states and 364 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:19,658 INFO L93 Difference]: Finished difference Result 695 states and 896 transitions. [2024-10-13 06:11:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:11:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-13 06:11:19,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:19,661 INFO L225 Difference]: With dead ends: 695 [2024-10-13 06:11:19,661 INFO L226 Difference]: Without dead ends: 502 [2024-10-13 06:11:19,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:11:19,662 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 198 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:19,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 860 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:11:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-10-13 06:11:19,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 415. [2024-10-13 06:11:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 360 states have (on average 1.2444444444444445) internal successors, (448), 360 states have internal predecessors, (448), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 532 transitions. [2024-10-13 06:11:19,716 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 532 transitions. Word has length 114 [2024-10-13 06:11:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:19,717 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 532 transitions. [2024-10-13 06:11:19,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 532 transitions. [2024-10-13 06:11:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-13 06:11:19,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:19,719 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:19,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:11:19,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:19,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:19,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1187171373, now seen corresponding path program 1 times [2024-10-13 06:11:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:19,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627184149] [2024-10-13 06:11:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627184149] [2024-10-13 06:11:20,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627184149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:20,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:20,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:11:20,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275841135] [2024-10-13 06:11:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:20,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:11:20,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:11:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:20,105 INFO L87 Difference]: Start difference. First operand 415 states and 532 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:20,372 INFO L93 Difference]: Finished difference Result 850 states and 1092 transitions. [2024-10-13 06:11:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:20,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-13 06:11:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:20,374 INFO L225 Difference]: With dead ends: 850 [2024-10-13 06:11:20,375 INFO L226 Difference]: Without dead ends: 528 [2024-10-13 06:11:20,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:11:20,376 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 243 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:20,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 765 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:11:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-13 06:11:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 484. [2024-10-13 06:11:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.2517482517482517) internal successors, (537), 429 states have internal predecessors, (537), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2024-10-13 06:11:20,437 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 621 transitions. Word has length 114 [2024-10-13 06:11:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:20,438 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 621 transitions. [2024-10-13 06:11:20,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 621 transitions. [2024-10-13 06:11:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-13 06:11:20,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:20,439 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:20,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:11:20,440 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:20,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1799053101, now seen corresponding path program 1 times [2024-10-13 06:11:20,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:20,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591913394] [2024-10-13 06:11:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:20,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:20,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:20,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591913394] [2024-10-13 06:11:20,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591913394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:20,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:20,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:11:20,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195308350] [2024-10-13 06:11:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:20,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:11:20,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:20,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:11:20,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:11:20,750 INFO L87 Difference]: Start difference. First operand 484 states and 621 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:20,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:20,982 INFO L93 Difference]: Finished difference Result 897 states and 1151 transitions. [2024-10-13 06:11:20,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:11:20,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-13 06:11:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:20,985 INFO L225 Difference]: With dead ends: 897 [2024-10-13 06:11:20,985 INFO L226 Difference]: Without dead ends: 510 [2024-10-13 06:11:20,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:11:20,988 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 158 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:20,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 526 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:11:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-13 06:11:21,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 474. [2024-10-13 06:11:21,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 419 states have (on average 1.243436754176611) internal successors, (521), 419 states have internal predecessors, (521), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 605 transitions. [2024-10-13 06:11:21,055 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 605 transitions. Word has length 114 [2024-10-13 06:11:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:21,056 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 605 transitions. [2024-10-13 06:11:21,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 605 transitions. [2024-10-13 06:11:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-13 06:11:21,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:21,058 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:21,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 06:11:21,058 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:21,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:21,058 INFO L85 PathProgramCache]: Analyzing trace with hash -869107773, now seen corresponding path program 1 times [2024-10-13 06:11:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688206305] [2024-10-13 06:11:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:21,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:21,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:21,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688206305] [2024-10-13 06:11:21,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688206305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:21,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:21,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:11:21,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149640431] [2024-10-13 06:11:21,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:21,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:11:21,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:21,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:11:21,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:11:21,330 INFO L87 Difference]: Start difference. First operand 474 states and 605 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:21,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:21,640 INFO L93 Difference]: Finished difference Result 771 states and 986 transitions. [2024-10-13 06:11:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:11:21,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-10-13 06:11:21,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:21,643 INFO L225 Difference]: With dead ends: 771 [2024-10-13 06:11:21,643 INFO L226 Difference]: Without dead ends: 550 [2024-10-13 06:11:21,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:11:21,645 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 123 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:21,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 401 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:11:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-13 06:11:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 476. [2024-10-13 06:11:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 421 states have (on average 1.2422802850356294) internal successors, (523), 421 states have internal predecessors, (523), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 607 transitions. [2024-10-13 06:11:21,717 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 607 transitions. Word has length 115 [2024-10-13 06:11:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:21,717 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 607 transitions. [2024-10-13 06:11:21,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 607 transitions. [2024-10-13 06:11:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-13 06:11:21,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:21,719 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:21,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:11:21,719 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:21,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1837511621, now seen corresponding path program 1 times [2024-10-13 06:11:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069693004] [2024-10-13 06:11:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:21,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:22,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:22,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069693004] [2024-10-13 06:11:22,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069693004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:22,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:22,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:11:22,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772199232] [2024-10-13 06:11:22,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:22,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:11:22,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:22,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:11:22,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:22,814 INFO L87 Difference]: Start difference. First operand 476 states and 607 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:23,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:23,408 INFO L93 Difference]: Finished difference Result 725 states and 922 transitions. [2024-10-13 06:11:23,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:11:23,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-10-13 06:11:23,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:23,411 INFO L225 Difference]: With dead ends: 725 [2024-10-13 06:11:23,411 INFO L226 Difference]: Without dead ends: 509 [2024-10-13 06:11:23,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:11:23,413 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 231 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:23,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 478 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:11:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-13 06:11:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 465. [2024-10-13 06:11:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 410 states have (on average 1.2317073170731707) internal successors, (505), 410 states have internal predecessors, (505), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 589 transitions. [2024-10-13 06:11:23,490 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 589 transitions. Word has length 115 [2024-10-13 06:11:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:23,490 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 589 transitions. [2024-10-13 06:11:23,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 589 transitions. [2024-10-13 06:11:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-13 06:11:23,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:23,492 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:23,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:11:23,492 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:23,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash 683170697, now seen corresponding path program 1 times [2024-10-13 06:11:23,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:23,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602780334] [2024-10-13 06:11:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:23,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:23,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602780334] [2024-10-13 06:11:23,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602780334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:23,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:23,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:11:23,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049140228] [2024-10-13 06:11:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:23,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:11:23,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:23,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:11:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:23,971 INFO L87 Difference]: Start difference. First operand 465 states and 589 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:24,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:24,448 INFO L93 Difference]: Finished difference Result 714 states and 905 transitions. [2024-10-13 06:11:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:24,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-10-13 06:11:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:24,454 INFO L225 Difference]: With dead ends: 714 [2024-10-13 06:11:24,454 INFO L226 Difference]: Without dead ends: 507 [2024-10-13 06:11:24,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:11:24,455 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 156 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:24,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 530 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:11:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-13 06:11:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 463. [2024-10-13 06:11:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 408 states have internal predecessors, (502), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 586 transitions. [2024-10-13 06:11:24,512 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 586 transitions. Word has length 115 [2024-10-13 06:11:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:24,512 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 586 transitions. [2024-10-13 06:11:24,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 586 transitions. [2024-10-13 06:11:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-13 06:11:24,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:24,514 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:24,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:11:24,516 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:24,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash -327946553, now seen corresponding path program 1 times [2024-10-13 06:11:24,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:24,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327596817] [2024-10-13 06:11:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:24,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:24,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:24,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327596817] [2024-10-13 06:11:24,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327596817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:24,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:24,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:11:24,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020514085] [2024-10-13 06:11:24,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:24,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:11:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:24,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:11:24,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:11:24,807 INFO L87 Difference]: Start difference. First operand 463 states and 586 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:25,085 INFO L93 Difference]: Finished difference Result 712 states and 902 transitions. [2024-10-13 06:11:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-10-13 06:11:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:25,088 INFO L225 Difference]: With dead ends: 712 [2024-10-13 06:11:25,088 INFO L226 Difference]: Without dead ends: 507 [2024-10-13 06:11:25,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:25,089 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 116 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:25,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 347 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:11:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-13 06:11:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 463. [2024-10-13 06:11:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 408 states have (on average 1.2279411764705883) internal successors, (501), 408 states have internal predecessors, (501), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 585 transitions. [2024-10-13 06:11:25,142 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 585 transitions. Word has length 115 [2024-10-13 06:11:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:25,143 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 585 transitions. [2024-10-13 06:11:25,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 585 transitions. [2024-10-13 06:11:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-13 06:11:25,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:25,144 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:25,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 06:11:25,144 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:25,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:25,144 INFO L85 PathProgramCache]: Analyzing trace with hash 710562215, now seen corresponding path program 1 times [2024-10-13 06:11:25,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:25,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790551031] [2024-10-13 06:11:25,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:25,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:26,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790551031] [2024-10-13 06:11:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790551031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:26,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:26,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:11:26,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697932264] [2024-10-13 06:11:26,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:26,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:11:26,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:26,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:11:26,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:11:26,206 INFO L87 Difference]: Start difference. First operand 463 states and 585 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:27,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:27,278 INFO L93 Difference]: Finished difference Result 714 states and 902 transitions. [2024-10-13 06:11:27,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 06:11:27,279 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-10-13 06:11:27,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:27,281 INFO L225 Difference]: With dead ends: 714 [2024-10-13 06:11:27,281 INFO L226 Difference]: Without dead ends: 515 [2024-10-13 06:11:27,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-10-13 06:11:27,283 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 252 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:27,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 673 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:11:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-10-13 06:11:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 471. [2024-10-13 06:11:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 416 states have (on average 1.2259615384615385) internal successors, (510), 416 states have internal predecessors, (510), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 06:11:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 594 transitions. [2024-10-13 06:11:27,363 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 594 transitions. Word has length 117 [2024-10-13 06:11:27,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:27,363 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 594 transitions. [2024-10-13 06:11:27,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:11:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 594 transitions. [2024-10-13 06:11:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-13 06:11:27,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:27,365 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:27,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 06:11:27,365 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:27,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash 767820517, now seen corresponding path program 1 times [2024-10-13 06:11:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693125264] [2024-10-13 06:11:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-13 06:11:29,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:29,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693125264] [2024-10-13 06:11:29,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693125264] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:11:29,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562601510] [2024-10-13 06:11:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:29,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:11:29,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:11:29,506 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 06:11:29,507 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 06:11:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:29,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 06:11:29,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:11:29,735 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 17 treesize of output 13 [2024-10-13 06:11:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-13 06:11:29,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:11:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:29,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562601510] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 06:11:29,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:11:29,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17, 9] total 19 [2024-10-13 06:11:29,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316441661] [2024-10-13 06:11:29,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:29,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:11:29,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:11:29,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:11:29,932 INFO L87 Difference]: Start difference. First operand 471 states and 594 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:30,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:30,246 INFO L93 Difference]: Finished difference Result 828 states and 1052 transitions. [2024-10-13 06:11:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:11:30,247 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-10-13 06:11:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:30,250 INFO L225 Difference]: With dead ends: 828 [2024-10-13 06:11:30,250 INFO L226 Difference]: Without dead ends: 629 [2024-10-13 06:11:30,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-10-13 06:11:30,252 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 43 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:30,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 539 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:11:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-10-13 06:11:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 437. [2024-10-13 06:11:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 400 states have (on average 1.2475) internal successors, (499), 400 states have internal predecessors, (499), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 555 transitions. [2024-10-13 06:11:30,308 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 555 transitions. Word has length 117 [2024-10-13 06:11:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:30,309 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 555 transitions. [2024-10-13 06:11:30,309 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 555 transitions. [2024-10-13 06:11:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-13 06:11:30,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:30,310 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:30,334 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 06:11:30,511 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,SelfDestructingSolverStorable26 [2024-10-13 06:11:30,512 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:30,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1037731324, now seen corresponding path program 1 times [2024-10-13 06:11:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095466469] [2024-10-13 06:11:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:31,707 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:31,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:31,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095466469] [2024-10-13 06:11:31,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095466469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:31,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:31,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-13 06:11:31,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294459959] [2024-10-13 06:11:31,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:31,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 06:11:31,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:31,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 06:11:31,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:11:31,709 INFO L87 Difference]: Start difference. First operand 437 states and 555 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:33,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:33,355 INFO L93 Difference]: Finished difference Result 1005 states and 1282 transitions. [2024-10-13 06:11:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 06:11:33,359 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-13 06:11:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:33,362 INFO L225 Difference]: With dead ends: 1005 [2024-10-13 06:11:33,362 INFO L226 Difference]: Without dead ends: 710 [2024-10-13 06:11:33,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 06:11:33,365 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 400 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:33,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1165 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 06:11:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-10-13 06:11:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 489. [2024-10-13 06:11:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 452 states have (on average 1.2676991150442478) internal successors, (573), 452 states have internal predecessors, (573), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 629 transitions. [2024-10-13 06:11:33,435 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 629 transitions. Word has length 118 [2024-10-13 06:11:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:33,436 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 629 transitions. [2024-10-13 06:11:33,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 629 transitions. [2024-10-13 06:11:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-13 06:11:33,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:33,438 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:33,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-13 06:11:33,438 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:33,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash 306423453, now seen corresponding path program 1 times [2024-10-13 06:11:33,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:33,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675222829] [2024-10-13 06:11:33,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:33,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:33,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:33,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675222829] [2024-10-13 06:11:33,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675222829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:33,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:33,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:11:33,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880570241] [2024-10-13 06:11:33,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:33,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:11:33,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:33,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:11:33,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:11:33,995 INFO L87 Difference]: Start difference. First operand 489 states and 629 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:34,505 INFO L93 Difference]: Finished difference Result 849 states and 1095 transitions. [2024-10-13 06:11:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:11:34,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-10-13 06:11:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:34,507 INFO L225 Difference]: With dead ends: 849 [2024-10-13 06:11:34,507 INFO L226 Difference]: Without dead ends: 509 [2024-10-13 06:11:34,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-10-13 06:11:34,509 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 216 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:34,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 755 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:11:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-13 06:11:34,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 489. [2024-10-13 06:11:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 452 states have (on average 1.2632743362831858) internal successors, (571), 452 states have internal predecessors, (571), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 627 transitions. [2024-10-13 06:11:34,552 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 627 transitions. Word has length 118 [2024-10-13 06:11:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:34,553 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 627 transitions. [2024-10-13 06:11:34,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:11:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 627 transitions. [2024-10-13 06:11:34,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-13 06:11:34,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:34,554 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:34,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-13 06:11:34,554 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:34,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:34,555 INFO L85 PathProgramCache]: Analyzing trace with hash 282122488, now seen corresponding path program 1 times [2024-10-13 06:11:34,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:34,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858186190] [2024-10-13 06:11:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:34,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:35,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:35,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858186190] [2024-10-13 06:11:35,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858186190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:35,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:35,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:11:35,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887825685] [2024-10-13 06:11:35,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:35,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:11:35,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:35,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:11:35,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:11:35,321 INFO L87 Difference]: Start difference. First operand 489 states and 627 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:36,048 INFO L93 Difference]: Finished difference Result 973 states and 1255 transitions. [2024-10-13 06:11:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 06:11:36,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-13 06:11:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:36,051 INFO L225 Difference]: With dead ends: 973 [2024-10-13 06:11:36,051 INFO L226 Difference]: Without dead ends: 645 [2024-10-13 06:11:36,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-13 06:11:36,052 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 148 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:36,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 876 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:11:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-10-13 06:11:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 506. [2024-10-13 06:11:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 469 states have (on average 1.255863539445629) internal successors, (589), 469 states have internal predecessors, (589), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 645 transitions. [2024-10-13 06:11:36,093 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 645 transitions. Word has length 118 [2024-10-13 06:11:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:36,094 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 645 transitions. [2024-10-13 06:11:36,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:36,094 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 645 transitions. [2024-10-13 06:11:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-13 06:11:36,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:36,095 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:36,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-13 06:11:36,095 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:36,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:36,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1650755618, now seen corresponding path program 1 times [2024-10-13 06:11:36,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:36,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578359747] [2024-10-13 06:11:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:36,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:36,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:36,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578359747] [2024-10-13 06:11:36,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578359747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:36,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:36,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:11:36,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531710962] [2024-10-13 06:11:36,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:36,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:11:36,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:36,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:11:36,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:36,779 INFO L87 Difference]: Start difference. First operand 506 states and 645 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:37,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:37,219 INFO L93 Difference]: Finished difference Result 1011 states and 1300 transitions. [2024-10-13 06:11:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:11:37,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-13 06:11:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:37,222 INFO L225 Difference]: With dead ends: 1011 [2024-10-13 06:11:37,222 INFO L226 Difference]: Without dead ends: 655 [2024-10-13 06:11:37,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:11:37,224 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 203 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:37,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 480 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:11:37,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-10-13 06:11:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 571. [2024-10-13 06:11:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 534 states have (on average 1.2640449438202248) internal successors, (675), 534 states have internal predecessors, (675), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 731 transitions. [2024-10-13 06:11:37,270 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 731 transitions. Word has length 120 [2024-10-13 06:11:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:37,270 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 731 transitions. [2024-10-13 06:11:37,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 731 transitions. [2024-10-13 06:11:37,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-13 06:11:37,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:37,271 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:37,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-13 06:11:37,272 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:37,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:37,272 INFO L85 PathProgramCache]: Analyzing trace with hash 629687264, now seen corresponding path program 1 times [2024-10-13 06:11:37,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084361423] [2024-10-13 06:11:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:37,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:37,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084361423] [2024-10-13 06:11:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084361423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:37,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:37,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:11:37,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345577666] [2024-10-13 06:11:37,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:37,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:11:37,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:37,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:11:37,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:11:37,461 INFO L87 Difference]: Start difference. First operand 571 states and 731 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:37,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:37,618 INFO L93 Difference]: Finished difference Result 1123 states and 1448 transitions. [2024-10-13 06:11:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:11:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-13 06:11:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:37,621 INFO L225 Difference]: With dead ends: 1123 [2024-10-13 06:11:37,621 INFO L226 Difference]: Without dead ends: 726 [2024-10-13 06:11:37,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:11:37,623 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 37 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:37,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 380 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:11:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-10-13 06:11:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 588. [2024-10-13 06:11:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 551 states have (on average 1.2740471869328494) internal successors, (702), 551 states have internal predecessors, (702), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 758 transitions. [2024-10-13 06:11:37,670 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 758 transitions. Word has length 120 [2024-10-13 06:11:37,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:37,670 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 758 transitions. [2024-10-13 06:11:37,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 758 transitions. [2024-10-13 06:11:37,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-13 06:11:37,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:37,671 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:37,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-13 06:11:37,671 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:37,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:37,672 INFO L85 PathProgramCache]: Analyzing trace with hash -381429986, now seen corresponding path program 1 times [2024-10-13 06:11:37,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:37,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412717169] [2024-10-13 06:11:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:37,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:38,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:38,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412717169] [2024-10-13 06:11:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412717169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:38,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:38,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-13 06:11:38,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81825706] [2024-10-13 06:11:38,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:38,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 06:11:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:38,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 06:11:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:11:38,915 INFO L87 Difference]: Start difference. First operand 588 states and 758 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:11:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:39,688 INFO L93 Difference]: Finished difference Result 1071 states and 1386 transitions. [2024-10-13 06:11:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:11:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2024-10-13 06:11:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:39,695 INFO L225 Difference]: With dead ends: 1071 [2024-10-13 06:11:39,695 INFO L226 Difference]: Without dead ends: 659 [2024-10-13 06:11:39,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-10-13 06:11:39,696 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:39,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 522 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:11:39,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-10-13 06:11:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 588. [2024-10-13 06:11:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 551 states have (on average 1.2740471869328494) internal successors, (702), 551 states have internal predecessors, (702), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 758 transitions. [2024-10-13 06:11:39,826 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 758 transitions. Word has length 120 [2024-10-13 06:11:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:39,826 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 758 transitions. [2024-10-13 06:11:39,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 06:11:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 758 transitions. [2024-10-13 06:11:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-13 06:11:39,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:39,832 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:39,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-13 06:11:39,832 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:39,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash -750326814, now seen corresponding path program 1 times [2024-10-13 06:11:39,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61362731] [2024-10-13 06:11:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:39,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:11:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:11:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:11:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:11:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:11:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:11:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:11:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:11:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:11:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:11:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:11:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:11:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:11:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:11:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:11:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:11:41,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:11:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61362731] [2024-10-13 06:11:41,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61362731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:11:41,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:11:41,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:11:41,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613730001] [2024-10-13 06:11:41,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:11:41,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:11:41,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:11:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:11:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:11:41,235 INFO L87 Difference]: Start difference. First operand 588 states and 758 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:11:41,853 INFO L93 Difference]: Finished difference Result 1143 states and 1486 transitions. [2024-10-13 06:11:41,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:11:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-13 06:11:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:11:41,857 INFO L225 Difference]: With dead ends: 1143 [2024-10-13 06:11:41,857 INFO L226 Difference]: Without dead ends: 733 [2024-10-13 06:11:41,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:11:41,859 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 195 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:11:41,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 375 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:11:41,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-13 06:11:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 655. [2024-10-13 06:11:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 618 states have (on average 1.27831715210356) internal successors, (790), 618 states have internal predecessors, (790), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:11:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 846 transitions. [2024-10-13 06:11:41,929 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 846 transitions. Word has length 120 [2024-10-13 06:11:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:11:41,929 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 846 transitions. [2024-10-13 06:11:41,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:11:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 846 transitions. [2024-10-13 06:11:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-13 06:11:41,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:11:41,931 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:41,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-13 06:11:41,931 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:11:41,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:11:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1761444064, now seen corresponding path program 1 times [2024-10-13 06:11:41,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:11:41,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260146604] [2024-10-13 06:11:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:11:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:11:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat