./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-a_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-a_file-90.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 b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:22:10,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:22:10,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:22:10,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:22:10,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:22:10,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:22:10,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:22:10,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:22:10,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:22:10,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:22:10,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:22:10,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:22:10,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:22:10,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:22:10,465 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:22:10,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:22:10,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:22:10,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:22:10,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:22:10,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:22:10,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:22:10,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:22:10,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:22:10,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:22:10,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:22:10,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:22:10,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:22:10,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:22:10,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:22:10,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:22:10,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:22:10,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:22:10,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:22:10,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:22:10,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:22:10,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:22:10,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:22:10,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:22:10,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:22:10,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:22:10,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:22:10,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:22:10,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 [2024-10-24 11:22:10,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:22:10,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:22:10,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:22:10,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:22:10,802 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:22:10,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-10-24 11:22:12,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:22:12,532 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:22:12,534 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-10-24 11:22:12,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea47355ff/c788aefaa3384baa9dee595ee0eae46f/FLAGd89de0bd1 [2024-10-24 11:22:12,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea47355ff/c788aefaa3384baa9dee595ee0eae46f [2024-10-24 11:22:12,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:22:12,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:22:12,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:22:12,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:22:12,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:22:12,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:12,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac5287e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12, skipping insertion in model container [2024-10-24 11:22:12,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:12,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:22:12,810 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-a_file-90.i[916,929] [2024-10-24 11:22:12,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:22:12,894 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:22:12,907 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-a_file-90.i[916,929] [2024-10-24 11:22:12,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:22:12,981 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:22:12,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12 WrapperNode [2024-10-24 11:22:12,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:22:12,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:22:12,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:22:12,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:22:12,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,062 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 469 [2024-10-24 11:22:13,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:22:13,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:22:13,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:22:13,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:22:13,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,101 INFO L175 MemorySlicer]: Split 130 memory accesses to 5 slices as follows [2, 34, 4, 55, 35]. 42 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 1, 6, 3]. The 19 writes are split as follows [0, 6, 1, 6, 6]. [2024-10-24 11:22:13,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:22:13,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:22:13,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:22:13,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:22:13,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (1/1) ... [2024-10-24 11:22:13,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:22:13,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:22:13,197 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) [2024-10-24 11:22:13,201 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 [2024-10-24 11:22:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:22:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:22:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:22:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:22:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:22:13,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:22:13,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:22:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:22:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:22:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:22:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:22:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:22:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:22:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:22:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:22:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:22:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:22:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:22:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:22:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:22:13,405 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:22:13,407 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:22:13,972 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-10-24 11:22:13,972 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:22:14,013 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:22:14,013 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:22:14,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:14 BoogieIcfgContainer [2024-10-24 11:22:14,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:22:14,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:22:14,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:22:14,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:22:14,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:22:12" (1/3) ... [2024-10-24 11:22:14,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237e6645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:14, skipping insertion in model container [2024-10-24 11:22:14,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:22:12" (2/3) ... [2024-10-24 11:22:14,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237e6645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:22:14, skipping insertion in model container [2024-10-24 11:22:14,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:22:14" (3/3) ... [2024-10-24 11:22:14,027 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-90.i [2024-10-24 11:22:14,045 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:22:14,045 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:22:14,120 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:22:14,129 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;@6cb76522, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:22:14,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:22:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:22:14,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:14,151 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:14,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:14,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1750151490, now seen corresponding path program 1 times [2024-10-24 11:22:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:14,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332225564] [2024-10-24 11:22:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:14,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:14,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:14,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332225564] [2024-10-24 11:22:14,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332225564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:14,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:22:14,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258739877] [2024-10-24 11:22:14,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:14,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:22:14,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:14,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:22:14,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:22:14,734 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:14,797 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2024-10-24 11:22:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:22:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-24 11:22:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:14,808 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:22:14,809 INFO L226 Difference]: Without dead ends: 102 [2024-10-24 11:22:14,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:22:14,817 INFO L432 NwaCegarLoop]: 145 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, 145 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 [2024-10-24 11:22:14,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:22:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-24 11:22:14,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-24 11:22:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2024-10-24 11:22:14,876 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2024-10-24 11:22:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:14,876 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2024-10-24 11:22:14,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2024-10-24 11:22:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:22:14,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:14,883 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:14,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:22:14,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:14,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:14,888 INFO L85 PathProgramCache]: Analyzing trace with hash -305656682, now seen corresponding path program 1 times [2024-10-24 11:22:14,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:14,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747673520] [2024-10-24 11:22:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:14,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:15,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:15,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747673520] [2024-10-24 11:22:15,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747673520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:15,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:15,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:22:15,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410204816] [2024-10-24 11:22:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:15,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:22:15,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:22:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:22:15,360 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:15,442 INFO L93 Difference]: Finished difference Result 205 states and 300 transitions. [2024-10-24 11:22:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:22:15,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-24 11:22:15,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:15,445 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:22:15,446 INFO L226 Difference]: Without dead ends: 104 [2024-10-24 11:22:15,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:22:15,451 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:15,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:15,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-24 11:22:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-24 11:22:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2024-10-24 11:22:15,508 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2024-10-24 11:22:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:15,510 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2024-10-24 11:22:15,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2024-10-24 11:22:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 11:22:15,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:15,515 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:15,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:22:15,516 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1329203845, now seen corresponding path program 1 times [2024-10-24 11:22:15,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:15,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742538776] [2024-10-24 11:22:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:15,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:15,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:16,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:16,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742538776] [2024-10-24 11:22:16,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742538776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:16,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:16,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:22:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594876749] [2024-10-24 11:22:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:16,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:22:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:22:16,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:16,079 INFO L87 Difference]: Start difference. First operand 104 states and 151 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:16,247 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2024-10-24 11:22:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:16,248 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-24 11:22:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:16,253 INFO L225 Difference]: With dead ends: 312 [2024-10-24 11:22:16,254 INFO L226 Difference]: Without dead ends: 209 [2024-10-24 11:22:16,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:16,255 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 139 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:16,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 891 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:16,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-24 11:22:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2024-10-24 11:22:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-10-24 11:22:16,271 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2024-10-24 11:22:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:16,272 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-10-24 11:22:16,272 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:16,272 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-10-24 11:22:16,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 11:22:16,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:16,275 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:16,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:22:16,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:16,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash -906502019, now seen corresponding path program 1 times [2024-10-24 11:22:16,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:16,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286573472] [2024-10-24 11:22:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286573472] [2024-10-24 11:22:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286573472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:16,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:16,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:16,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253863201] [2024-10-24 11:22:16,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:16,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:16,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:16,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:16,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:16,956 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:17,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:17,366 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2024-10-24 11:22:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:17,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-24 11:22:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:17,369 INFO L225 Difference]: With dead ends: 311 [2024-10-24 11:22:17,369 INFO L226 Difference]: Without dead ends: 203 [2024-10-24 11:22:17,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:22:17,371 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 355 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:17,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 404 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:22:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-24 11:22:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2024-10-24 11:22:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-10-24 11:22:17,400 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2024-10-24 11:22:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:17,402 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-10-24 11:22:17,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-10-24 11:22:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 11:22:17,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:17,408 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:17,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:22:17,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:17,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash -576930377, now seen corresponding path program 1 times [2024-10-24 11:22:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:17,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667109938] [2024-10-24 11:22:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667109938] [2024-10-24 11:22:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667109938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:18,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:22:18,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971798386] [2024-10-24 11:22:18,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:18,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:22:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:18,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:22:18,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:22:18,844 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:22:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:19,449 INFO L93 Difference]: Finished difference Result 322 states and 456 transitions. [2024-10-24 11:22:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:22:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 151 [2024-10-24 11:22:19,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:19,452 INFO L225 Difference]: With dead ends: 322 [2024-10-24 11:22:19,452 INFO L226 Difference]: Without dead ends: 212 [2024-10-24 11:22:19,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:22:19,453 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 236 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:19,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 875 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:22:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-10-24 11:22:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 147. [2024-10-24 11:22:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 124 states have (on average 1.3387096774193548) internal successors, (166), 124 states have internal predecessors, (166), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:22:19,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 206 transitions. [2024-10-24 11:22:19,497 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 206 transitions. Word has length 151 [2024-10-24 11:22:19,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:19,498 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 206 transitions. [2024-10-24 11:22:19,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:22:19,498 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 206 transitions. [2024-10-24 11:22:19,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:19,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:19,501 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:19,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:22:19,501 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:19,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:19,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1156097376, now seen corresponding path program 1 times [2024-10-24 11:22:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:19,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803099311] [2024-10-24 11:22:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:22:20,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:20,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803099311] [2024-10-24 11:22:20,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803099311] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:22:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918185211] [2024-10-24 11:22:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:20,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:22:20,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:22:20,228 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) [2024-10-24 11:22:20,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:22:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:20,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 11:22:20,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:22:20,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 11:22:20,700 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 19 treesize of output 1 [2024-10-24 11:22:20,727 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 19 treesize of output 1 [2024-10-24 11:22:20,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-10-24 11:22:20,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:22:20,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 100 treesize of output 69 [2024-10-24 11:22:21,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:22:21,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 47 [2024-10-24 11:22:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:22:21,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:22:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918185211] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 11:22:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:22:21,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 14] total 24 [2024-10-24 11:22:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110710208] [2024-10-24 11:22:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:21,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:22:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:21,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:22:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2024-10-24 11:22:21,667 INFO L87 Difference]: Start difference. First operand 147 states and 206 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:22,225 INFO L93 Difference]: Finished difference Result 381 states and 533 transitions. [2024-10-24 11:22:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:22:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:22:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:22,229 INFO L225 Difference]: With dead ends: 381 [2024-10-24 11:22:22,229 INFO L226 Difference]: Without dead ends: 235 [2024-10-24 11:22:22,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-10-24 11:22:22,232 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 93 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:22,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1140 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:22:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-24 11:22:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 228. [2024-10-24 11:22:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 192 states have (on average 1.3333333333333333) internal successors, (256), 193 states have internal predecessors, (256), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:22:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 320 transitions. [2024-10-24 11:22:22,285 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 320 transitions. Word has length 152 [2024-10-24 11:22:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:22,287 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 320 transitions. [2024-10-24 11:22:22,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 320 transitions. [2024-10-24 11:22:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:22,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:22,289 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:22,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 11:22:22,495 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,SelfDestructingSolverStorable5 [2024-10-24 11:22:22,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:22,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1742903390, now seen corresponding path program 1 times [2024-10-24 11:22:22,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:22,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433838440] [2024-10-24 11:22:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:22,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:23,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:23,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433838440] [2024-10-24 11:22:23,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433838440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:23,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:23,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:22:23,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823879399] [2024-10-24 11:22:23,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:23,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:22:23,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:23,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:22:23,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:23,378 INFO L87 Difference]: Start difference. First operand 228 states and 320 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:23,589 INFO L93 Difference]: Finished difference Result 480 states and 669 transitions. [2024-10-24 11:22:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:22:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:22:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:23,594 INFO L225 Difference]: With dead ends: 480 [2024-10-24 11:22:23,594 INFO L226 Difference]: Without dead ends: 253 [2024-10-24 11:22:23,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:23,595 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 81 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:23,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 591 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-24 11:22:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2024-10-24 11:22:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 202 states have (on average 1.297029702970297) internal successors, (262), 204 states have internal predecessors, (262), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 11:22:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 346 transitions. [2024-10-24 11:22:23,655 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 346 transitions. Word has length 152 [2024-10-24 11:22:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:23,656 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 346 transitions. [2024-10-24 11:22:23,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 346 transitions. [2024-10-24 11:22:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:23,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:23,658 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:23,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:22:23,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:23,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1550522018, now seen corresponding path program 1 times [2024-10-24 11:22:23,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:23,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702581553] [2024-10-24 11:22:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:23,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:24,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:24,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702581553] [2024-10-24 11:22:24,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702581553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:24,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:24,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:24,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519458836] [2024-10-24 11:22:24,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:24,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:24,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:24,459 INFO L87 Difference]: Start difference. First operand 250 states and 346 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:24,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:24,720 INFO L93 Difference]: Finished difference Result 539 states and 746 transitions. [2024-10-24 11:22:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:24,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2024-10-24 11:22:24,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:24,723 INFO L225 Difference]: With dead ends: 539 [2024-10-24 11:22:24,723 INFO L226 Difference]: Without dead ends: 314 [2024-10-24 11:22:24,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:24,727 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 82 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:24,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 777 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-10-24 11:22:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 287. [2024-10-24 11:22:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 239 states have (on average 1.3096234309623431) internal successors, (313), 241 states have internal predecessors, (313), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 11:22:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 397 transitions. [2024-10-24 11:22:24,767 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 397 transitions. Word has length 152 [2024-10-24 11:22:24,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:24,768 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 397 transitions. [2024-10-24 11:22:24,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 397 transitions. [2024-10-24 11:22:24,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:24,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:24,770 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:24,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:22:24,770 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:24,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash 963716004, now seen corresponding path program 1 times [2024-10-24 11:22:24,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:24,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936454706] [2024-10-24 11:22:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936454706] [2024-10-24 11:22:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936454706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:27,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:27,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 11:22:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260875014] [2024-10-24 11:22:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:27,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:22:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:22:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:22:27,170 INFO L87 Difference]: Start difference. First operand 287 states and 397 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:22:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:28,991 INFO L93 Difference]: Finished difference Result 1077 states and 1483 transitions. [2024-10-24 11:22:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 11:22:28,992 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 152 [2024-10-24 11:22:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:28,996 INFO L225 Difference]: With dead ends: 1077 [2024-10-24 11:22:28,996 INFO L226 Difference]: Without dead ends: 791 [2024-10-24 11:22:28,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=1125, Unknown=0, NotChecked=0, Total=1406 [2024-10-24 11:22:28,998 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 885 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:28,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1877 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 11:22:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-10-24 11:22:29,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 392. [2024-10-24 11:22:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 321 states have (on average 1.2928348909657321) internal successors, (415), 323 states have internal predecessors, (415), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 539 transitions. [2024-10-24 11:22:29,086 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 539 transitions. Word has length 152 [2024-10-24 11:22:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:29,087 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 539 transitions. [2024-10-24 11:22:29,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:22:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 539 transitions. [2024-10-24 11:22:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:29,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:29,090 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:29,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:22:29,091 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:29,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1088868398, now seen corresponding path program 1 times [2024-10-24 11:22:29,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004957649] [2024-10-24 11:22:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:29,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004957649] [2024-10-24 11:22:29,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004957649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:29,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:29,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:22:29,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108685666] [2024-10-24 11:22:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:29,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:22:29,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:29,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:22:29,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:22:29,836 INFO L87 Difference]: Start difference. First operand 392 states and 539 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:30,098 INFO L93 Difference]: Finished difference Result 687 states and 947 transitions. [2024-10-24 11:22:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:22:30,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2024-10-24 11:22:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:30,101 INFO L225 Difference]: With dead ends: 687 [2024-10-24 11:22:30,101 INFO L226 Difference]: Without dead ends: 401 [2024-10-24 11:22:30,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:22:30,104 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 209 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:30,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 692 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-10-24 11:22:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 327. [2024-10-24 11:22:30,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 256 states have (on average 1.2734375) internal successors, (326), 258 states have internal predecessors, (326), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 450 transitions. [2024-10-24 11:22:30,153 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 450 transitions. Word has length 152 [2024-10-24 11:22:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:30,154 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 450 transitions. [2024-10-24 11:22:30,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 450 transitions. [2024-10-24 11:22:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:22:30,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:30,156 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:30,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:22:30,156 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:30,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash 986348258, now seen corresponding path program 1 times [2024-10-24 11:22:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622898902] [2024-10-24 11:22:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:31,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:31,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622898902] [2024-10-24 11:22:31,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622898902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:31,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:31,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:22:31,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655768908] [2024-10-24 11:22:31,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:31,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:22:31,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:22:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:22:31,251 INFO L87 Difference]: Start difference. First operand 327 states and 450 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:32,350 INFO L93 Difference]: Finished difference Result 931 states and 1283 transitions. [2024-10-24 11:22:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 11:22:32,351 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2024-10-24 11:22:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:32,355 INFO L225 Difference]: With dead ends: 931 [2024-10-24 11:22:32,355 INFO L226 Difference]: Without dead ends: 687 [2024-10-24 11:22:32,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2024-10-24 11:22:32,357 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 344 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:32,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 2048 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:22:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-10-24 11:22:32,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 327. [2024-10-24 11:22:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 256 states have (on average 1.2734375) internal successors, (326), 258 states have internal predecessors, (326), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 450 transitions. [2024-10-24 11:22:32,411 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 450 transitions. Word has length 152 [2024-10-24 11:22:32,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:32,413 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 450 transitions. [2024-10-24 11:22:32,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:32,413 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 450 transitions. [2024-10-24 11:22:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:22:32,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:32,416 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:32,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:22:32,417 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:32,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1738577047, now seen corresponding path program 1 times [2024-10-24 11:22:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:32,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608953873] [2024-10-24 11:22:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:32,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:32,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608953873] [2024-10-24 11:22:32,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608953873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:32,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:32,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:32,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150365431] [2024-10-24 11:22:32,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:32,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:32,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:32,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:32,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:32,706 INFO L87 Difference]: Start difference. First operand 327 states and 450 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:32,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:32,908 INFO L93 Difference]: Finished difference Result 741 states and 1026 transitions. [2024-10-24 11:22:32,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:22:32,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:32,916 INFO L225 Difference]: With dead ends: 741 [2024-10-24 11:22:32,917 INFO L226 Difference]: Without dead ends: 497 [2024-10-24 11:22:32,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:32,918 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 61 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:32,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 566 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-24 11:22:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 402. [2024-10-24 11:22:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 331 states have (on average 1.2930513595166162) internal successors, (428), 333 states have internal predecessors, (428), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 552 transitions. [2024-10-24 11:22:32,998 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 552 transitions. Word has length 153 [2024-10-24 11:22:32,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:32,999 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 552 transitions. [2024-10-24 11:22:32,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 552 transitions. [2024-10-24 11:22:33,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:22:33,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:33,002 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:33,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:22:33,002 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:33,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1545272999, now seen corresponding path program 1 times [2024-10-24 11:22:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:33,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570416145] [2024-10-24 11:22:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:33,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:33,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:33,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570416145] [2024-10-24 11:22:33,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570416145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:33,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:33,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:22:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851599772] [2024-10-24 11:22:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:33,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:22:33,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:22:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:33,507 INFO L87 Difference]: Start difference. First operand 402 states and 552 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:33,732 INFO L93 Difference]: Finished difference Result 903 states and 1245 transitions. [2024-10-24 11:22:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:22:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:22:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:33,736 INFO L225 Difference]: With dead ends: 903 [2024-10-24 11:22:33,736 INFO L226 Difference]: Without dead ends: 612 [2024-10-24 11:22:33,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:33,738 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 97 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:33,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 465 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:33,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-10-24 11:22:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 437. [2024-10-24 11:22:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 366 states have (on average 1.2950819672131149) internal successors, (474), 368 states have internal predecessors, (474), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 598 transitions. [2024-10-24 11:22:33,807 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 598 transitions. Word has length 153 [2024-10-24 11:22:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:33,808 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 598 transitions. [2024-10-24 11:22:33,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 598 transitions. [2024-10-24 11:22:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:22:33,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:33,810 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:33,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:22:33,810 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:33,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1505678980, now seen corresponding path program 1 times [2024-10-24 11:22:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:33,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339775515] [2024-10-24 11:22:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:22:34,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339775515] [2024-10-24 11:22:34,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339775515] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:22:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863968121] [2024-10-24 11:22:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:34,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:22:34,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:22:34,281 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) [2024-10-24 11:22:34,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 11:22:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:34,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-24 11:22:34,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:22:34,511 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 19 treesize of output 1 [2024-10-24 11:22:34,518 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 19 treesize of output 1 [2024-10-24 11:22:34,525 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 19 treesize of output 1 [2024-10-24 11:22:34,532 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 [2024-10-24 11:22:34,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2024-10-24 11:22:34,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:22:34,641 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 80 treesize of output 32 [2024-10-24 11:22:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:22:34,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:22:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:34,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863968121] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 11:22:34,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:22:34,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 10] total 16 [2024-10-24 11:22:34,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232463107] [2024-10-24 11:22:34,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:34,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:22:34,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:22:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:22:34,985 INFO L87 Difference]: Start difference. First operand 437 states and 598 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:35,370 INFO L93 Difference]: Finished difference Result 838 states and 1142 transitions. [2024-10-24 11:22:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:22:35,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:22:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:35,374 INFO L225 Difference]: With dead ends: 838 [2024-10-24 11:22:35,374 INFO L226 Difference]: Without dead ends: 510 [2024-10-24 11:22:35,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:22:35,376 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 82 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:35,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1241 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:35,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-24 11:22:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 394. [2024-10-24 11:22:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 323 states have (on average 1.2817337461300309) internal successors, (414), 325 states have internal predecessors, (414), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 11:22:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 538 transitions. [2024-10-24 11:22:35,431 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 538 transitions. Word has length 153 [2024-10-24 11:22:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:35,432 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 538 transitions. [2024-10-24 11:22:35,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 538 transitions. [2024-10-24 11:22:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:22:35,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:35,433 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:35,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 11:22:35,634 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,SelfDestructingSolverStorable13 [2024-10-24 11:22:35,634 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:35,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:35,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1036977173, now seen corresponding path program 1 times [2024-10-24 11:22:35,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:35,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701393484] [2024-10-24 11:22:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:35,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701393484] [2024-10-24 11:22:35,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701393484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:35,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:35,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:22:35,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563206586] [2024-10-24 11:22:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:35,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:22:35,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:22:35,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:35,954 INFO L87 Difference]: Start difference. First operand 394 states and 538 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:36,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:36,194 INFO L93 Difference]: Finished difference Result 832 states and 1136 transitions. [2024-10-24 11:22:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:22:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:22:36,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:36,197 INFO L225 Difference]: With dead ends: 832 [2024-10-24 11:22:36,197 INFO L226 Difference]: Without dead ends: 510 [2024-10-24 11:22:36,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:36,200 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 96 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:36,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 671 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-24 11:22:36,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 270. [2024-10-24 11:22:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 232 states have (on average 1.2844827586206897) internal successors, (298), 233 states have internal predecessors, (298), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:22:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 362 transitions. [2024-10-24 11:22:36,236 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 362 transitions. Word has length 153 [2024-10-24 11:22:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:36,236 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 362 transitions. [2024-10-24 11:22:36,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 362 transitions. [2024-10-24 11:22:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:22:36,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:36,237 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:36,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:22:36,238 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:36,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -2048094423, now seen corresponding path program 1 times [2024-10-24 11:22:36,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:36,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200662484] [2024-10-24 11:22:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:36,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:36,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200662484] [2024-10-24 11:22:36,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200662484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:36,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:36,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:36,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421056774] [2024-10-24 11:22:36,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:36,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:36,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:36,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:36,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:36,414 INFO L87 Difference]: Start difference. First operand 270 states and 362 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:36,586 INFO L93 Difference]: Finished difference Result 626 states and 840 transitions. [2024-10-24 11:22:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:22:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:36,589 INFO L225 Difference]: With dead ends: 626 [2024-10-24 11:22:36,589 INFO L226 Difference]: Without dead ends: 357 [2024-10-24 11:22:36,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:36,591 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 50 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:36,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 778 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:36,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-24 11:22:36,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 307. [2024-10-24 11:22:36,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 269 states have (on average 1.2862453531598512) internal successors, (346), 270 states have internal predecessors, (346), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:22:36,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 410 transitions. [2024-10-24 11:22:36,627 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 410 transitions. Word has length 153 [2024-10-24 11:22:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:36,628 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 410 transitions. [2024-10-24 11:22:36,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 410 transitions. [2024-10-24 11:22:36,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 11:22:36,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:36,629 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:36,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:22:36,630 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:36,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:36,630 INFO L85 PathProgramCache]: Analyzing trace with hash -980410223, now seen corresponding path program 1 times [2024-10-24 11:22:36,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:36,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552776085] [2024-10-24 11:22:36,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:36,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:37,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:37,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552776085] [2024-10-24 11:22:37,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552776085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:37,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:37,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:22:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658044149] [2024-10-24 11:22:37,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:37,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:22:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:37,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:22:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:22:37,428 INFO L87 Difference]: Start difference. First operand 307 states and 410 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:37,867 INFO L93 Difference]: Finished difference Result 621 states and 829 transitions. [2024-10-24 11:22:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:22:37,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-24 11:22:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:37,870 INFO L225 Difference]: With dead ends: 621 [2024-10-24 11:22:37,870 INFO L226 Difference]: Without dead ends: 315 [2024-10-24 11:22:37,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:22:37,872 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 113 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:37,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 876 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:22:37,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-24 11:22:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 309. [2024-10-24 11:22:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 271 states have (on average 1.2841328413284132) internal successors, (348), 272 states have internal predecessors, (348), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:22:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2024-10-24 11:22:37,913 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 412 transitions. Word has length 154 [2024-10-24 11:22:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:37,917 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-10-24 11:22:37,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2024-10-24 11:22:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:37,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:37,919 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:37,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:22:37,919 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:37,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:37,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1554002775, now seen corresponding path program 1 times [2024-10-24 11:22:37,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:37,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096107189] [2024-10-24 11:22:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:37,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096107189] [2024-10-24 11:22:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096107189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:38,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:38,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938498259] [2024-10-24 11:22:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:38,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:38,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:38,598 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:38,768 INFO L93 Difference]: Finished difference Result 793 states and 1046 transitions. [2024-10-24 11:22:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:38,771 INFO L225 Difference]: With dead ends: 793 [2024-10-24 11:22:38,772 INFO L226 Difference]: Without dead ends: 485 [2024-10-24 11:22:38,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:38,773 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 105 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:38,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 531 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:38,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-10-24 11:22:38,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 481. [2024-10-24 11:22:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 437 states have (on average 1.276887871853547) internal successors, (558), 440 states have internal predecessors, (558), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:22:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 630 transitions. [2024-10-24 11:22:38,831 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 630 transitions. Word has length 155 [2024-10-24 11:22:38,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:38,833 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 630 transitions. [2024-10-24 11:22:38,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:38,834 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 630 transitions. [2024-10-24 11:22:38,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:38,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:38,835 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:38,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:22:38,836 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:38,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:38,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1947029785, now seen corresponding path program 1 times [2024-10-24 11:22:38,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:38,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969389285] [2024-10-24 11:22:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:38,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:40,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:40,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969389285] [2024-10-24 11:22:40,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969389285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:40,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:40,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:22:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192133345] [2024-10-24 11:22:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:40,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:22:40,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:40,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:22:40,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:22:40,075 INFO L87 Difference]: Start difference. First operand 481 states and 630 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:40,493 INFO L93 Difference]: Finished difference Result 1147 states and 1494 transitions. [2024-10-24 11:22:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:22:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:40,498 INFO L225 Difference]: With dead ends: 1147 [2024-10-24 11:22:40,498 INFO L226 Difference]: Without dead ends: 667 [2024-10-24 11:22:40,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:22:40,500 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 138 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:40,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1320 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-10-24 11:22:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 512. [2024-10-24 11:22:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 468 states have (on average 1.2692307692307692) internal successors, (594), 471 states have internal predecessors, (594), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:22:40,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 666 transitions. [2024-10-24 11:22:40,557 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 666 transitions. Word has length 155 [2024-10-24 11:22:40,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:40,557 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 666 transitions. [2024-10-24 11:22:40,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:40,558 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 666 transitions. [2024-10-24 11:22:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:40,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:40,559 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:40,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 11:22:40,559 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:40,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:40,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1705467200, now seen corresponding path program 1 times [2024-10-24 11:22:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:40,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222977606] [2024-10-24 11:22:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:40,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:40,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222977606] [2024-10-24 11:22:40,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222977606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:40,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:40,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699108998] [2024-10-24 11:22:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:40,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:40,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:40,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:40,947 INFO L87 Difference]: Start difference. First operand 512 states and 666 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:41,162 INFO L93 Difference]: Finished difference Result 1191 states and 1543 transitions. [2024-10-24 11:22:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:41,167 INFO L225 Difference]: With dead ends: 1191 [2024-10-24 11:22:41,167 INFO L226 Difference]: Without dead ends: 680 [2024-10-24 11:22:41,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:41,169 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 114 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:41,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 587 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:41,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-10-24 11:22:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 676. [2024-10-24 11:22:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 615 states have (on average 1.2520325203252032) internal successors, (770), 621 states have internal predecessors, (770), 50 states have call successors, (50), 10 states have call predecessors, (50), 10 states have return successors, (50), 44 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 11:22:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 870 transitions. [2024-10-24 11:22:41,265 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 870 transitions. Word has length 155 [2024-10-24 11:22:41,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:41,265 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 870 transitions. [2024-10-24 11:22:41,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 870 transitions. [2024-10-24 11:22:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:41,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:41,267 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:41,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 11:22:41,268 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:41,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:41,268 INFO L85 PathProgramCache]: Analyzing trace with hash -382757696, now seen corresponding path program 1 times [2024-10-24 11:22:41,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:41,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141527184] [2024-10-24 11:22:41,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:41,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:41,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141527184] [2024-10-24 11:22:41,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141527184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:41,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:41,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269522017] [2024-10-24 11:22:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:41,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:41,695 INFO L87 Difference]: Start difference. First operand 676 states and 870 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:41,914 INFO L93 Difference]: Finished difference Result 1351 states and 1733 transitions. [2024-10-24 11:22:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:41,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:41,918 INFO L225 Difference]: With dead ends: 1351 [2024-10-24 11:22:41,918 INFO L226 Difference]: Without dead ends: 684 [2024-10-24 11:22:41,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:41,920 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 63 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:41,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 732 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:41,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-10-24 11:22:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 612. [2024-10-24 11:22:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 566 states have (on average 1.245583038869258) internal successors, (705), 569 states have internal predecessors, (705), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:22:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 777 transitions. [2024-10-24 11:22:41,978 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 777 transitions. Word has length 155 [2024-10-24 11:22:41,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:41,980 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 777 transitions. [2024-10-24 11:22:41,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 777 transitions. [2024-10-24 11:22:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:41,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:41,982 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:41,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 11:22:41,982 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:41,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash -534222121, now seen corresponding path program 1 times [2024-10-24 11:22:41,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:41,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966768573] [2024-10-24 11:22:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:42,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:42,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966768573] [2024-10-24 11:22:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966768573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:42,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:42,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209329327] [2024-10-24 11:22:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:42,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:42,453 INFO L87 Difference]: Start difference. First operand 612 states and 777 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:42,637 INFO L93 Difference]: Finished difference Result 1407 states and 1784 transitions. [2024-10-24 11:22:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:42,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:42,643 INFO L225 Difference]: With dead ends: 1407 [2024-10-24 11:22:42,643 INFO L226 Difference]: Without dead ends: 796 [2024-10-24 11:22:42,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:42,645 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 103 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:42,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 640 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-10-24 11:22:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 792. [2024-10-24 11:22:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 736 states have (on average 1.2432065217391304) internal successors, (915), 741 states have internal predecessors, (915), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 39 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:22:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1003 transitions. [2024-10-24 11:22:42,718 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1003 transitions. Word has length 155 [2024-10-24 11:22:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:42,718 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1003 transitions. [2024-10-24 11:22:42,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1003 transitions. [2024-10-24 11:22:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:42,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:42,720 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:42,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:22:42,720 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:42,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash -927249131, now seen corresponding path program 1 times [2024-10-24 11:22:42,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:42,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948319968] [2024-10-24 11:22:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948319968] [2024-10-24 11:22:43,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948319968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:43,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:43,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:22:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861163454] [2024-10-24 11:22:43,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:43,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:22:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:22:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:22:43,668 INFO L87 Difference]: Start difference. First operand 792 states and 1003 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:44,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:44,035 INFO L93 Difference]: Finished difference Result 1709 states and 2164 transitions. [2024-10-24 11:22:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:22:44,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 11:22:44,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:44,040 INFO L225 Difference]: With dead ends: 1709 [2024-10-24 11:22:44,040 INFO L226 Difference]: Without dead ends: 918 [2024-10-24 11:22:44,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:22:44,043 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 93 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:44,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1602 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-10-24 11:22:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 854. [2024-10-24 11:22:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 798 states have (on average 1.2355889724310778) internal successors, (986), 803 states have internal predecessors, (986), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 39 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:22:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1074 transitions. [2024-10-24 11:22:44,189 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1074 transitions. Word has length 155 [2024-10-24 11:22:44,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:44,190 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1074 transitions. [2024-10-24 11:22:44,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1074 transitions. [2024-10-24 11:22:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:22:44,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:44,193 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:44,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 11:22:44,193 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:44,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash -596261735, now seen corresponding path program 1 times [2024-10-24 11:22:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:44,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580253919] [2024-10-24 11:22:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:44,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:44,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580253919] [2024-10-24 11:22:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580253919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:44,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:44,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:22:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992629581] [2024-10-24 11:22:44,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:44,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:22:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:22:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:44,475 INFO L87 Difference]: Start difference. First operand 854 states and 1074 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:44,706 INFO L93 Difference]: Finished difference Result 1844 states and 2342 transitions. [2024-10-24 11:22:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:44,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:22:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:44,711 INFO L225 Difference]: With dead ends: 1844 [2024-10-24 11:22:44,711 INFO L226 Difference]: Without dead ends: 991 [2024-10-24 11:22:44,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:44,714 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 134 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:44,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 898 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-10-24 11:22:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 815. [2024-10-24 11:22:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 759 states have (on average 1.2358366271409749) internal successors, (938), 764 states have internal predecessors, (938), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 39 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:22:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1026 transitions. [2024-10-24 11:22:44,797 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1026 transitions. Word has length 155 [2024-10-24 11:22:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:44,798 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1026 transitions. [2024-10-24 11:22:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1026 transitions. [2024-10-24 11:22:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 11:22:44,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:44,800 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:44,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 11:22:44,800 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -991014282, now seen corresponding path program 1 times [2024-10-24 11:22:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832160218] [2024-10-24 11:22:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:44,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832160218] [2024-10-24 11:22:44,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832160218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:44,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:44,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:22:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555604005] [2024-10-24 11:22:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:44,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:22:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:44,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:22:44,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:22:44,962 INFO L87 Difference]: Start difference. First operand 815 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:45,210 INFO L93 Difference]: Finished difference Result 2377 states and 2992 transitions. [2024-10-24 11:22:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:22:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-10-24 11:22:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:45,217 INFO L225 Difference]: With dead ends: 2377 [2024-10-24 11:22:45,217 INFO L226 Difference]: Without dead ends: 1563 [2024-10-24 11:22:45,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:22:45,220 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 103 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:45,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 390 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:22:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-10-24 11:22:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1125. [2024-10-24 11:22:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1044 states have (on average 1.239463601532567) internal successors, (1294), 1049 states have internal predecessors, (1294), 64 states have call successors, (64), 16 states have call predecessors, (64), 16 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-24 11:22:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1422 transitions. [2024-10-24 11:22:45,355 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1422 transitions. Word has length 156 [2024-10-24 11:22:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:45,355 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1422 transitions. [2024-10-24 11:22:45,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:45,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1422 transitions. [2024-10-24 11:22:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 11:22:45,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:45,358 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:45,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 11:22:45,358 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:45,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:45,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1577820296, now seen corresponding path program 1 times [2024-10-24 11:22:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:45,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049111744] [2024-10-24 11:22:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:46,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:46,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049111744] [2024-10-24 11:22:46,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049111744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:46,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:46,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:22:46,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835672380] [2024-10-24 11:22:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:46,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:22:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:22:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:22:46,069 INFO L87 Difference]: Start difference. First operand 1125 states and 1422 transitions. Second operand has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:22:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:46,833 INFO L93 Difference]: Finished difference Result 4907 states and 6185 transitions. [2024-10-24 11:22:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:22:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2024-10-24 11:22:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:46,848 INFO L225 Difference]: With dead ends: 4907 [2024-10-24 11:22:46,848 INFO L226 Difference]: Without dead ends: 4083 [2024-10-24 11:22:46,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:22:46,851 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 524 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:46,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1203 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:22:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2024-10-24 11:22:47,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 2625. [2024-10-24 11:22:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2489 states have (on average 1.2406588991562877) internal successors, (3088), 2499 states have internal predecessors, (3088), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-24 11:22:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3304 transitions. [2024-10-24 11:22:47,064 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 3304 transitions. Word has length 156 [2024-10-24 11:22:47,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:47,064 INFO L471 AbstractCegarLoop]: Abstraction has 2625 states and 3304 transitions. [2024-10-24 11:22:47,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:22:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 3304 transitions. [2024-10-24 11:22:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:47,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:47,068 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:47,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 11:22:47,069 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:47,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -124374938, now seen corresponding path program 1 times [2024-10-24 11:22:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292458853] [2024-10-24 11:22:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:47,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:47,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292458853] [2024-10-24 11:22:47,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292458853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:47,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:47,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:47,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711381166] [2024-10-24 11:22:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:47,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:47,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:47,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:47,314 INFO L87 Difference]: Start difference. First operand 2625 states and 3304 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:47,788 INFO L93 Difference]: Finished difference Result 5129 states and 6490 transitions. [2024-10-24 11:22:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:22:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:22:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:47,802 INFO L225 Difference]: With dead ends: 5129 [2024-10-24 11:22:47,803 INFO L226 Difference]: Without dead ends: 3013 [2024-10-24 11:22:47,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:22:47,808 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 129 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:47,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1043 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-10-24 11:22:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 2625. [2024-10-24 11:22:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2489 states have (on average 1.2278023302531138) internal successors, (3056), 2499 states have internal predecessors, (3056), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-24 11:22:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3272 transitions. [2024-10-24 11:22:48,040 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 3272 transitions. Word has length 157 [2024-10-24 11:22:48,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:48,040 INFO L471 AbstractCegarLoop]: Abstraction has 2625 states and 3272 transitions. [2024-10-24 11:22:48,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 3272 transitions. [2024-10-24 11:22:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:48,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:48,045 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:48,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 11:22:48,045 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:48,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:48,046 INFO L85 PathProgramCache]: Analyzing trace with hash -537483444, now seen corresponding path program 1 times [2024-10-24 11:22:48,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:48,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038581399] [2024-10-24 11:22:48,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:48,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2024-10-24 11:22:48,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:48,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038581399] [2024-10-24 11:22:48,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038581399] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:22:48,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587602619] [2024-10-24 11:22:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:48,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:22:48,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:22:48,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:22:48,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 11:22:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:48,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 11:22:48,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:22:48,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 11:22:49,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2024-10-24 11:22:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:49,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 11:22:49,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587602619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:49,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 11:22:49,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [10] total 23 [2024-10-24 11:22:49,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054930954] [2024-10-24 11:22:49,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:49,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:22:49,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:49,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:22:49,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-10-24 11:22:49,395 INFO L87 Difference]: Start difference. First operand 2625 states and 3272 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:50,475 INFO L93 Difference]: Finished difference Result 7669 states and 9522 transitions. [2024-10-24 11:22:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:22:50,476 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:22:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:50,496 INFO L225 Difference]: With dead ends: 7669 [2024-10-24 11:22:50,497 INFO L226 Difference]: Without dead ends: 5589 [2024-10-24 11:22:50,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2024-10-24 11:22:50,503 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 395 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:50,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1213 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:22:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2024-10-24 11:22:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 3471. [2024-10-24 11:22:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3223 states have (on average 1.2150170648464165) internal successors, (3916), 3243 states have internal predecessors, (3916), 196 states have call successors, (196), 51 states have call predecessors, (196), 51 states have return successors, (196), 176 states have call predecessors, (196), 196 states have call successors, (196) [2024-10-24 11:22:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 4308 transitions. [2024-10-24 11:22:50,898 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 4308 transitions. Word has length 157 [2024-10-24 11:22:50,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:50,899 INFO L471 AbstractCegarLoop]: Abstraction has 3471 states and 4308 transitions. [2024-10-24 11:22:50,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:50,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 4308 transitions. [2024-10-24 11:22:50,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:50,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:50,906 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:50,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 11:22:51,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:22:51,107 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:51,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1237523918, now seen corresponding path program 1 times [2024-10-24 11:22:51,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:51,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947761061] [2024-10-24 11:22:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:51,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:51,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:51,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947761061] [2024-10-24 11:22:51,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947761061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:51,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:51,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:22:51,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054077199] [2024-10-24 11:22:51,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:51,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:22:51,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:51,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:22:51,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:22:51,673 INFO L87 Difference]: Start difference. First operand 3471 states and 4308 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:52,321 INFO L93 Difference]: Finished difference Result 7413 states and 9164 transitions. [2024-10-24 11:22:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:22:52,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:22:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:52,338 INFO L225 Difference]: With dead ends: 7413 [2024-10-24 11:22:52,338 INFO L226 Difference]: Without dead ends: 4487 [2024-10-24 11:22:52,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:22:52,345 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 191 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:52,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 896 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:22:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2024-10-24 11:22:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 4147. [2024-10-24 11:22:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 3822 states have (on average 1.2022501308215594) internal successors, (4595), 3854 states have internal predecessors, (4595), 252 states have call successors, (252), 72 states have call predecessors, (252), 72 states have return successors, (252), 220 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-24 11:22:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 5099 transitions. [2024-10-24 11:22:52,810 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 5099 transitions. Word has length 157 [2024-10-24 11:22:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:52,811 INFO L471 AbstractCegarLoop]: Abstraction has 4147 states and 5099 transitions. [2024-10-24 11:22:52,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 5099 transitions. [2024-10-24 11:22:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:52,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:52,817 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:52,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 11:22:52,817 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:52,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1026875038, now seen corresponding path program 1 times [2024-10-24 11:22:52,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:52,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508506079] [2024-10-24 11:22:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:53,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:53,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508506079] [2024-10-24 11:22:53,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508506079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:53,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:53,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:22:53,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252919685] [2024-10-24 11:22:53,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:53,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:22:53,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:22:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:22:53,089 INFO L87 Difference]: Start difference. First operand 4147 states and 5099 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:53,924 INFO L93 Difference]: Finished difference Result 8555 states and 10563 transitions. [2024-10-24 11:22:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:22:53,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:22:53,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:53,946 INFO L225 Difference]: With dead ends: 8555 [2024-10-24 11:22:53,946 INFO L226 Difference]: Without dead ends: 4849 [2024-10-24 11:22:53,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:22:53,958 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 260 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:53,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 675 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:22:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2024-10-24 11:22:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4479. [2024-10-24 11:22:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4479 states, 4076 states have (on average 1.172963689892051) internal successors, (4781), 4120 states have internal predecessors, (4781), 312 states have call successors, (312), 90 states have call predecessors, (312), 90 states have return successors, (312), 268 states have call predecessors, (312), 312 states have call successors, (312) [2024-10-24 11:22:54,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 5405 transitions. [2024-10-24 11:22:54,726 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 5405 transitions. Word has length 157 [2024-10-24 11:22:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:54,727 INFO L471 AbstractCegarLoop]: Abstraction has 4479 states and 5405 transitions. [2024-10-24 11:22:54,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:22:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 5405 transitions. [2024-10-24 11:22:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:54,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:54,733 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:54,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 11:22:54,733 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:54,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash -396934834, now seen corresponding path program 1 times [2024-10-24 11:22:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:54,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276190] [2024-10-24 11:22:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:55,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:55,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276190] [2024-10-24 11:22:55,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:55,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:22:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123632843] [2024-10-24 11:22:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:55,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:22:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:22:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:22:55,213 INFO L87 Difference]: Start difference. First operand 4479 states and 5405 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:56,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:22:56,056 INFO L93 Difference]: Finished difference Result 8063 states and 9764 transitions. [2024-10-24 11:22:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:22:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2024-10-24 11:22:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:22:56,073 INFO L225 Difference]: With dead ends: 8063 [2024-10-24 11:22:56,073 INFO L226 Difference]: Without dead ends: 5091 [2024-10-24 11:22:56,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:22:56,081 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 152 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:22:56,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1297 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:22:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2024-10-24 11:22:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 4683. [2024-10-24 11:22:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4683 states, 4280 states have (on average 1.169392523364486) internal successors, (5005), 4324 states have internal predecessors, (5005), 312 states have call successors, (312), 90 states have call predecessors, (312), 90 states have return successors, (312), 268 states have call predecessors, (312), 312 states have call successors, (312) [2024-10-24 11:22:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4683 states to 4683 states and 5629 transitions. [2024-10-24 11:22:56,585 INFO L78 Accepts]: Start accepts. Automaton has 4683 states and 5629 transitions. Word has length 157 [2024-10-24 11:22:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:22:56,585 INFO L471 AbstractCegarLoop]: Abstraction has 4683 states and 5629 transitions. [2024-10-24 11:22:56,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:22:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4683 states and 5629 transitions. [2024-10-24 11:22:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:22:56,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:22:56,593 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:22:56,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 11:22:56,593 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:22:56,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:22:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1378072528, now seen corresponding path program 1 times [2024-10-24 11:22:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:22:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394811102] [2024-10-24 11:22:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:22:56,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:22:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:22:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:22:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:22:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:22:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:22:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:22:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:22:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:22:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:22:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:22:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:22:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:22:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:22:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:22:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:22:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:22:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:22:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:22:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:22:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:22:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:22:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:22:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:22:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394811102] [2024-10-24 11:22:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394811102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:22:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:22:57,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 11:22:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699109302] [2024-10-24 11:22:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:22:57,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 11:22:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:22:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 11:22:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:22:57,921 INFO L87 Difference]: Start difference. First operand 4683 states and 5629 transitions. Second operand has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:23:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:23:00,024 INFO L93 Difference]: Finished difference Result 12250 states and 14735 transitions. [2024-10-24 11:23:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 11:23:00,024 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) Word has length 157 [2024-10-24 11:23:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:23:00,048 INFO L225 Difference]: With dead ends: 12250 [2024-10-24 11:23:00,048 INFO L226 Difference]: Without dead ends: 9074 [2024-10-24 11:23:00,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 11:23:00,057 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 484 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:23:00,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1942 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:23:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9074 states. [2024-10-24 11:23:00,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9074 to 6528. [2024-10-24 11:23:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 5856 states have (on average 1.1623975409836065) internal successors, (6807), 5930 states have internal predecessors, (6807), 516 states have call successors, (516), 155 states have call predecessors, (516), 155 states have return successors, (516), 442 states have call predecessors, (516), 516 states have call successors, (516) [2024-10-24 11:23:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 7839 transitions. [2024-10-24 11:23:00,942 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 7839 transitions. Word has length 157 [2024-10-24 11:23:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:23:00,943 INFO L471 AbstractCegarLoop]: Abstraction has 6528 states and 7839 transitions. [2024-10-24 11:23:00,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:23:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 7839 transitions. [2024-10-24 11:23:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:23:00,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:23:00,948 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:23:00,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 11:23:00,948 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:23:00,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:23:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1803870151, now seen corresponding path program 1 times [2024-10-24 11:23:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:23:00,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434023110] [2024-10-24 11:23:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:23:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:23:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:23:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:23:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:23:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:23:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:23:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:23:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:23:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:23:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:23:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:23:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:23:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:23:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:23:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:23:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:23:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:23:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:23:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:23:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:23:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:23:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:23:02,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:23:02,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434023110] [2024-10-24 11:23:02,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434023110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:23:02,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:23:02,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 11:23:02,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197356155] [2024-10-24 11:23:02,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:23:02,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 11:23:02,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:23:02,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 11:23:02,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:23:02,249 INFO L87 Difference]: Start difference. First operand 6528 states and 7839 transitions. Second operand has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:23:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:23:05,363 INFO L93 Difference]: Finished difference Result 13046 states and 15687 transitions. [2024-10-24 11:23:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 11:23:05,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-10-24 11:23:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:23:05,386 INFO L225 Difference]: With dead ends: 13046 [2024-10-24 11:23:05,386 INFO L226 Difference]: Without dead ends: 9870 [2024-10-24 11:23:05,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 11:23:05,395 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 844 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:23:05,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2721 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 11:23:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9870 states. [2024-10-24 11:23:06,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9870 to 7006. [2024-10-24 11:23:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 6334 states have (on average 1.1662456583517524) internal successors, (7387), 6408 states have internal predecessors, (7387), 516 states have call successors, (516), 155 states have call predecessors, (516), 155 states have return successors, (516), 442 states have call predecessors, (516), 516 states have call successors, (516) [2024-10-24 11:23:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 8419 transitions. [2024-10-24 11:23:06,543 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 8419 transitions. Word has length 157 [2024-10-24 11:23:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:23:06,544 INFO L471 AbstractCegarLoop]: Abstraction has 7006 states and 8419 transitions. [2024-10-24 11:23:06,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.75) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:23:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 8419 transitions. [2024-10-24 11:23:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:23:06,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:23:06,550 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:23:06,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 11:23:06,550 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:23:06,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:23:06,551 INFO L85 PathProgramCache]: Analyzing trace with hash 919333644, now seen corresponding path program 1 times [2024-10-24 11:23:06,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:23:06,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040207216] [2024-10-24 11:23:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:23:06,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:23:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:23:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:23:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:23:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:23:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:23:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:23:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:23:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:23:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:23:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:23:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:23:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:23:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:23:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:23:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:23:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:23:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:23:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:23:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:23:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:23:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:23:07,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:23:07,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040207216] [2024-10-24 11:23:07,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040207216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:23:07,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:23:07,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 11:23:07,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184403134] [2024-10-24 11:23:07,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:23:07,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:23:07,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:23:07,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:23:07,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:23:07,961 INFO L87 Difference]: Start difference. First operand 7006 states and 8419 transitions. Second operand has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:23:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:23:10,565 INFO L93 Difference]: Finished difference Result 16398 states and 19791 transitions. [2024-10-24 11:23:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 11:23:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) Word has length 157 [2024-10-24 11:23:10,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:23:10,600 INFO L225 Difference]: With dead ends: 16398 [2024-10-24 11:23:10,600 INFO L226 Difference]: Without dead ends: 12978 [2024-10-24 11:23:10,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 11:23:10,611 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 669 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:23:10,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1517 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:23:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12978 states. [2024-10-24 11:23:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12978 to 10382. [2024-10-24 11:23:12,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10382 states, 9270 states have (on average 1.1625674217907227) internal successors, (10777), 9406 states have internal predecessors, (10777), 860 states have call successors, (860), 251 states have call predecessors, (860), 251 states have return successors, (860), 724 states have call predecessors, (860), 860 states have call successors, (860) [2024-10-24 11:23:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10382 states to 10382 states and 12497 transitions. [2024-10-24 11:23:12,267 INFO L78 Accepts]: Start accepts. Automaton has 10382 states and 12497 transitions. Word has length 157 [2024-10-24 11:23:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:23:12,268 INFO L471 AbstractCegarLoop]: Abstraction has 10382 states and 12497 transitions. [2024-10-24 11:23:12,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:23:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10382 states and 12497 transitions. [2024-10-24 11:23:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:23:12,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:23:12,277 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:23:12,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 11:23:12,278 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:23:12,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:23:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1600626290, now seen corresponding path program 1 times [2024-10-24 11:23:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:23:12,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697532869] [2024-10-24 11:23:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:23:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:23:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:23:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:23:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:23:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:23:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:23:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:23:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:23:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:23:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:23:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:23:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:23:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:23:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:23:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:23:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:23:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:23:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:23:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:23:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:23:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:23:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:23:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:23:12,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:23:12,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697532869] [2024-10-24 11:23:12,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697532869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:23:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:23:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:23:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267049144] [2024-10-24 11:23:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:23:12,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:23:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:23:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:23:12,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:23:12,893 INFO L87 Difference]: Start difference. First operand 10382 states and 12497 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:23:14,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:23:14,542 INFO L93 Difference]: Finished difference Result 20126 states and 24215 transitions. [2024-10-24 11:23:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:23:14,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:23:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:23:14,578 INFO L225 Difference]: With dead ends: 20126 [2024-10-24 11:23:14,578 INFO L226 Difference]: Without dead ends: 13290 [2024-10-24 11:23:14,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:23:14,593 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 66 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:23:14,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 523 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:23:14,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13290 states.