./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-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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-32.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 4c0ba744090c8142a33dba842cf98027b64f47a633efca28c0047c8830fe4fa5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:23:30,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:23:30,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:23:30,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:23:30,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:23:30,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:23:30,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:23:30,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:23:30,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:23:30,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:23:30,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:23:30,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:23:30,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:23:30,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:23:30,756 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:23:30,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:23:30,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:23:30,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:23:30,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:23:30,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:23:30,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:23:30,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:23:30,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:23:30,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:23:30,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:23:30,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:23:30,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:23:30,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:23:30,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:23:30,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:23:30,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:23:30,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:23:30,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:23:30,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:23:30,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:23:30,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:23:30,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:23:30,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:23:30,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:23:30,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:23:30,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:23:30,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:23:30,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c0ba744090c8142a33dba842cf98027b64f47a633efca28c0047c8830fe4fa5 [2024-10-14 13:23:30,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:23:30,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:23:30,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:23:30,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:23:30,986 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:23:30,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.i [2024-10-14 13:23:32,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:23:32,551 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:23:32,552 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.i [2024-10-14 13:23:32,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f42bcbf9/303c14fad76c40f7850edb2065df2da4/FLAG0ac0eb88e [2024-10-14 13:23:32,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f42bcbf9/303c14fad76c40f7850edb2065df2da4 [2024-10-14 13:23:32,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:23:32,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:23:32,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:23:32,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:23:32,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:23:32,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242f96ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32, skipping insertion in model container [2024-10-14 13:23:32,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:23:32,790 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-32.i[916,929] [2024-10-14 13:23:32,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:23:32,856 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:23:32,866 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-32.i[916,929] [2024-10-14 13:23:32,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:23:32,926 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:23:32,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32 WrapperNode [2024-10-14 13:23:32,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:23:32,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:23:32,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:23:32,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:23:32,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,973 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 440 [2024-10-14 13:23:32,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:23:32,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:23:32,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:23:32,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:23:32,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:32,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,008 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-10-14 13:23:33,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:23:33,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:23:33,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:23:33,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:23:33,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (1/1) ... [2024-10-14 13:23:33,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:23:33,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:23:33,060 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) [2024-10-14 13:23:33,062 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 [2024-10-14 13:23:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:23:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:23:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:23:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 13:23:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 13:23:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 13:23:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 13:23:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:23:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:23:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:23:33,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:23:33,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:23:33,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 13:23:33,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 13:23:33,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 13:23:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 13:23:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:23:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:23:33,203 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:23:33,205 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:23:33,482 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-14 13:23:33,482 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:23:33,527 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:23:33,527 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:23:33,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:23:33 BoogieIcfgContainer [2024-10-14 13:23:33,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:23:33,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:23:33,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:23:33,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:23:33,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:23:32" (1/3) ... [2024-10-14 13:23:33,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4405243b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:23:33, skipping insertion in model container [2024-10-14 13:23:33,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:23:32" (2/3) ... [2024-10-14 13:23:33,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4405243b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:23:33, skipping insertion in model container [2024-10-14 13:23:33,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:23:33" (3/3) ... [2024-10-14 13:23:33,534 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-32.i [2024-10-14 13:23:33,546 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:23:33,547 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:23:33,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:23:33,593 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;@5793ec10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:23:33,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:23:33,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 13:23:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:23:33,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:33,611 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:33,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:33,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash 841249278, now seen corresponding path program 1 times [2024-10-14 13:23:33,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:33,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159511645] [2024-10-14 13:23:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:33,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:33,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:33,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159511645] [2024-10-14 13:23:33,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159511645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:33,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:33,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:23:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294441053] [2024-10-14 13:23:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:33,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:23:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:33,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:23:33,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:23:33,961 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:23:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:34,004 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2024-10-14 13:23:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:23:34,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-10-14 13:23:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:34,058 INFO L225 Difference]: With dead ends: 181 [2024-10-14 13:23:34,059 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 13:23:34,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:23:34,070 INFO L432 NwaCegarLoop]: 123 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, 123 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 [2024-10-14 13:23:34,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:23:34,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 13:23:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 13:23:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 13:23:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2024-10-14 13:23:34,114 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2024-10-14 13:23:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:34,116 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2024-10-14 13:23:34,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:23:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2024-10-14 13:23:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:23:34,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:34,120 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:34,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:23:34,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:34,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:34,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2096020442, now seen corresponding path program 1 times [2024-10-14 13:23:34,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:34,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498963212] [2024-10-14 13:23:34,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:34,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:34,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498963212] [2024-10-14 13:23:34,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498963212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:34,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:34,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:23:34,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830023372] [2024-10-14 13:23:34,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:34,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:23:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:23:34,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:23:34,564 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:23:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:34,770 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-10-14 13:23:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:23:34,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-10-14 13:23:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:34,773 INFO L225 Difference]: With dead ends: 306 [2024-10-14 13:23:34,773 INFO L226 Difference]: Without dead ends: 217 [2024-10-14 13:23:34,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:23:34,776 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:23:34,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 350 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:23:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-14 13:23:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 185. [2024-10-14 13:23:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.3013698630136987) internal successors, (190), 146 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:23:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 262 transitions. [2024-10-14 13:23:34,807 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 262 transitions. Word has length 124 [2024-10-14 13:23:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:34,808 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 262 transitions. [2024-10-14 13:23:34,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:23:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 262 transitions. [2024-10-14 13:23:34,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 13:23:34,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:34,814 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:34,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:23:34,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:34,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash 442873600, now seen corresponding path program 1 times [2024-10-14 13:23:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086910785] [2024-10-14 13:23:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:34,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:35,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:35,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:36,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:36,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086910785] [2024-10-14 13:23:36,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086910785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:36,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:36,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:23:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964643340] [2024-10-14 13:23:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:36,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:23:36,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:36,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:23:36,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:23:36,035 INFO L87 Difference]: Start difference. First operand 185 states and 262 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:23:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:36,520 INFO L93 Difference]: Finished difference Result 525 states and 744 transitions. [2024-10-14 13:23:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:23:36,520 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2024-10-14 13:23:36,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:36,523 INFO L225 Difference]: With dead ends: 525 [2024-10-14 13:23:36,526 INFO L226 Difference]: Without dead ends: 341 [2024-10-14 13:23:36,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:23:36,528 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 100 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:23:36,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 780 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:23:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-14 13:23:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2024-10-14 13:23:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 272 states have (on average 1.3125) internal successors, (357), 274 states have internal predecessors, (357), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 13:23:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 477 transitions. [2024-10-14 13:23:36,576 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 477 transitions. Word has length 132 [2024-10-14 13:23:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:36,577 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 477 transitions. [2024-10-14 13:23:36,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:23:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 477 transitions. [2024-10-14 13:23:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:23:36,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:36,582 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:36,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:23:36,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:36,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1233213465, now seen corresponding path program 1 times [2024-10-14 13:23:36,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:36,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458883267] [2024-10-14 13:23:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:36,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:37,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:37,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458883267] [2024-10-14 13:23:37,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458883267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:37,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:37,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 13:23:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915668549] [2024-10-14 13:23:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:37,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 13:23:37,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 13:23:37,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:23:37,969 INFO L87 Difference]: Start difference. First operand 337 states and 477 transitions. Second operand has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:23:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:40,012 INFO L93 Difference]: Finished difference Result 833 states and 1167 transitions. [2024-10-14 13:23:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 13:23:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2024-10-14 13:23:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:40,020 INFO L225 Difference]: With dead ends: 833 [2024-10-14 13:23:40,021 INFO L226 Difference]: Without dead ends: 497 [2024-10-14 13:23:40,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2024-10-14 13:23:40,025 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 464 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:23:40,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1274 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 13:23:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-14 13:23:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 344. [2024-10-14 13:23:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 279 states have (on average 1.3082437275985663) internal successors, (365), 281 states have internal predecessors, (365), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 13:23:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 485 transitions. [2024-10-14 13:23:40,086 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 485 transitions. Word has length 134 [2024-10-14 13:23:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:40,087 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 485 transitions. [2024-10-14 13:23:40,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:23:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 485 transitions. [2024-10-14 13:23:40,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:23:40,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:40,088 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:40,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:23:40,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:40,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:40,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1089429525, now seen corresponding path program 1 times [2024-10-14 13:23:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:40,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897264269] [2024-10-14 13:23:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:40,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:40,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897264269] [2024-10-14 13:23:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897264269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:40,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:40,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:23:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424773686] [2024-10-14 13:23:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:40,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:23:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:23:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:23:40,311 INFO L87 Difference]: Start difference. First operand 344 states and 485 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:23:40,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:40,364 INFO L93 Difference]: Finished difference Result 699 states and 985 transitions. [2024-10-14 13:23:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:23:40,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-10-14 13:23:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:40,366 INFO L225 Difference]: With dead ends: 699 [2024-10-14 13:23:40,366 INFO L226 Difference]: Without dead ends: 356 [2024-10-14 13:23:40,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:23:40,368 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:23:40,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 470 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:23:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-14 13:23:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-10-14 13:23:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 291 states have (on average 1.29553264604811) internal successors, (377), 293 states have internal predecessors, (377), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 13:23:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2024-10-14 13:23:40,409 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 134 [2024-10-14 13:23:40,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:40,411 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2024-10-14 13:23:40,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:23:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2024-10-14 13:23:40,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:23:40,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:40,413 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:40,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:23:40,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:40,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:40,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1997485593, now seen corresponding path program 1 times [2024-10-14 13:23:40,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:40,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912585594] [2024-10-14 13:23:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:40,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:41,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912585594] [2024-10-14 13:23:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912585594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:41,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:41,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:23:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260610358] [2024-10-14 13:23:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:41,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:23:41,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:41,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:23:41,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:23:41,530 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:23:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:23:43,200 INFO L93 Difference]: Finished difference Result 811 states and 1122 transitions. [2024-10-14 13:23:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:23:43,200 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2024-10-14 13:23:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:23:43,203 INFO L225 Difference]: With dead ends: 811 [2024-10-14 13:23:43,203 INFO L226 Difference]: Without dead ends: 456 [2024-10-14 13:23:43,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:23:43,206 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 286 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:23:43,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1323 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 13:23:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-10-14 13:23:43,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 310. [2024-10-14 13:23:43,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 257 states have (on average 1.2957198443579767) internal successors, (333), 258 states have internal predecessors, (333), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 13:23:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 429 transitions. [2024-10-14 13:23:43,232 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 429 transitions. Word has length 134 [2024-10-14 13:23:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:23:43,233 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 429 transitions. [2024-10-14 13:23:43,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:23:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 429 transitions. [2024-10-14 13:23:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 13:23:43,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:23:43,234 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:23:43,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:23:43,234 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:23:43,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:23:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1505843025, now seen corresponding path program 1 times [2024-10-14 13:23:43,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:23:43,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832006655] [2024-10-14 13:23:43,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:23:43,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:23:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:23:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:23:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:23:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:23:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:23:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:23:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:23:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:23:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:23:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:23:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:23:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:23:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:23:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:23:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:23:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:23:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:23:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:23:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:23:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:23:49,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:23:49,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832006655] [2024-10-14 13:23:49,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832006655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:23:49,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:23:49,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:23:49,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608115776] [2024-10-14 13:23:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:23:49,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:23:49,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:23:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:23:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=179, Unknown=1, NotChecked=0, Total=210 [2024-10-14 13:23:49,725 INFO L87 Difference]: Start difference. First operand 310 states and 429 transitions. Second operand has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:11,671 INFO L93 Difference]: Finished difference Result 672 states and 925 transitions. [2024-10-14 13:24:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:24:11,672 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-14 13:24:11,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:11,675 INFO L225 Difference]: With dead ends: 672 [2024-10-14 13:24:11,675 INFO L226 Difference]: Without dead ends: 504 [2024-10-14 13:24:11,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=86, Invalid=419, Unknown=1, NotChecked=0, Total=506 [2024-10-14 13:24:11,676 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 270 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:11,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1908 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-14 13:24:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-14 13:24:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 319. [2024-10-14 13:24:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 267 states have internal predecessors, (344), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 13:24:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 440 transitions. [2024-10-14 13:24:11,736 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 440 transitions. Word has length 135 [2024-10-14 13:24:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:11,737 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 440 transitions. [2024-10-14 13:24:11,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 440 transitions. [2024-10-14 13:24:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 13:24:11,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:11,738 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:11,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:24:11,739 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:11,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash -753760193, now seen corresponding path program 1 times [2024-10-14 13:24:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74034486] [2024-10-14 13:24:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:13,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74034486] [2024-10-14 13:24:13,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74034486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:13,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:13,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-14 13:24:13,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046579277] [2024-10-14 13:24:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:13,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 13:24:13,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:13,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 13:24:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:24:13,034 INFO L87 Difference]: Start difference. First operand 319 states and 440 transitions. Second operand has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:15,699 INFO L93 Difference]: Finished difference Result 796 states and 1097 transitions. [2024-10-14 13:24:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 13:24:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-14 13:24:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:15,702 INFO L225 Difference]: With dead ends: 796 [2024-10-14 13:24:15,703 INFO L226 Difference]: Without dead ends: 621 [2024-10-14 13:24:15,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2024-10-14 13:24:15,704 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 318 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:15,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2009 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 13:24:15,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-10-14 13:24:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 343. [2024-10-14 13:24:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 290 states have (on average 1.306896551724138) internal successors, (379), 291 states have internal predecessors, (379), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 13:24:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 475 transitions. [2024-10-14 13:24:15,747 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 475 transitions. Word has length 135 [2024-10-14 13:24:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:15,748 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 475 transitions. [2024-10-14 13:24:15,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 475 transitions. [2024-10-14 13:24:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:15,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:15,749 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:15,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:24:15,749 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:15,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2091456592, now seen corresponding path program 1 times [2024-10-14 13:24:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:15,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657255480] [2024-10-14 13:24:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:15,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:16,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:16,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657255480] [2024-10-14 13:24:16,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657255480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:16,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:16,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:24:16,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569722674] [2024-10-14 13:24:16,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:16,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:24:16,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:16,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:24:16,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:24:16,129 INFO L87 Difference]: Start difference. First operand 343 states and 475 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:16,639 INFO L93 Difference]: Finished difference Result 1087 states and 1496 transitions. [2024-10-14 13:24:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:24:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-10-14 13:24:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:16,642 INFO L225 Difference]: With dead ends: 1087 [2024-10-14 13:24:16,642 INFO L226 Difference]: Without dead ends: 745 [2024-10-14 13:24:16,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:24:16,643 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 230 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:16,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 463 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:24:16,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-10-14 13:24:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 651. [2024-10-14 13:24:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 539 states have (on average 1.2894248608534322) internal successors, (695), 544 states have internal predecessors, (695), 102 states have call successors, (102), 9 states have call predecessors, (102), 9 states have return successors, (102), 97 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-14 13:24:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 899 transitions. [2024-10-14 13:24:16,752 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 899 transitions. Word has length 136 [2024-10-14 13:24:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:16,752 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 899 transitions. [2024-10-14 13:24:16,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 899 transitions. [2024-10-14 13:24:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:16,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:16,753 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:16,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:24:16,754 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:16,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:16,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1948438351, now seen corresponding path program 1 times [2024-10-14 13:24:16,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:16,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112537206] [2024-10-14 13:24:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:17,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:17,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112537206] [2024-10-14 13:24:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112537206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135363249] [2024-10-14 13:24:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:17,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:17,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:17,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:17,074 INFO L87 Difference]: Start difference. First operand 651 states and 899 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:17,405 INFO L93 Difference]: Finished difference Result 1113 states and 1515 transitions. [2024-10-14 13:24:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:24:17,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-10-14 13:24:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:17,409 INFO L225 Difference]: With dead ends: 1113 [2024-10-14 13:24:17,409 INFO L226 Difference]: Without dead ends: 1111 [2024-10-14 13:24:17,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:24:17,410 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 63 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:17,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 779 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:24:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-10-14 13:24:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1104. [2024-10-14 13:24:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 910 states have (on average 1.2615384615384615) internal successors, (1148), 923 states have internal predecessors, (1148), 176 states have call successors, (176), 17 states have call predecessors, (176), 17 states have return successors, (176), 163 states have call predecessors, (176), 176 states have call successors, (176) [2024-10-14 13:24:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1500 transitions. [2024-10-14 13:24:17,574 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1500 transitions. Word has length 136 [2024-10-14 13:24:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:17,576 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1500 transitions. [2024-10-14 13:24:17,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:17,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1500 transitions. [2024-10-14 13:24:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:17,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:17,578 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:17,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:24:17,578 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:17,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1532502411, now seen corresponding path program 1 times [2024-10-14 13:24:17,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:17,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719799111] [2024-10-14 13:24:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719799111] [2024-10-14 13:24:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719799111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:18,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 13:24:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352772771] [2024-10-14 13:24:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:18,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 13:24:18,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 13:24:18,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:24:18,881 INFO L87 Difference]: Start difference. First operand 1104 states and 1500 transitions. Second operand has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:21,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:21,474 INFO L93 Difference]: Finished difference Result 2422 states and 3277 transitions. [2024-10-14 13:24:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 13:24:21,475 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-14 13:24:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:21,480 INFO L225 Difference]: With dead ends: 2422 [2024-10-14 13:24:21,480 INFO L226 Difference]: Without dead ends: 1319 [2024-10-14 13:24:21,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-10-14 13:24:21,482 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 331 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:21,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1941 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 13:24:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-10-14 13:24:21,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1149. [2024-10-14 13:24:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 938 states have (on average 1.2537313432835822) internal successors, (1176), 952 states have internal predecessors, (1176), 190 states have call successors, (190), 20 states have call predecessors, (190), 20 states have return successors, (190), 176 states have call predecessors, (190), 190 states have call successors, (190) [2024-10-14 13:24:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1556 transitions. [2024-10-14 13:24:21,679 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1556 transitions. Word has length 136 [2024-10-14 13:24:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:21,679 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1556 transitions. [2024-10-14 13:24:21,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1556 transitions. [2024-10-14 13:24:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:21,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:21,681 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:21,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:24:21,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:21,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:21,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1099290559, now seen corresponding path program 1 times [2024-10-14 13:24:21,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:21,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339036353] [2024-10-14 13:24:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:21,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:22,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:22,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339036353] [2024-10-14 13:24:22,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339036353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:22,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:22,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:24:22,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784228424] [2024-10-14 13:24:22,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:22,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:24:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:24:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:24:22,513 INFO L87 Difference]: Start difference. First operand 1149 states and 1556 transitions. Second operand has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:23,786 INFO L93 Difference]: Finished difference Result 2488 states and 3367 transitions. [2024-10-14 13:24:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 13:24:23,787 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-14 13:24:23,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:23,793 INFO L225 Difference]: With dead ends: 2488 [2024-10-14 13:24:23,793 INFO L226 Difference]: Without dead ends: 1360 [2024-10-14 13:24:23,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:24:23,796 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 354 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:23,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1097 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:24:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-10-14 13:24:23,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1140. [2024-10-14 13:24:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 929 states have (on average 1.2508073196986007) internal successors, (1162), 943 states have internal predecessors, (1162), 190 states have call successors, (190), 20 states have call predecessors, (190), 20 states have return successors, (190), 176 states have call predecessors, (190), 190 states have call successors, (190) [2024-10-14 13:24:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1542 transitions. [2024-10-14 13:24:24,004 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1542 transitions. Word has length 136 [2024-10-14 13:24:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:24,004 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1542 transitions. [2024-10-14 13:24:24,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1542 transitions. [2024-10-14 13:24:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:24,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:24,005 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:24:24,006 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:24,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash 566719730, now seen corresponding path program 1 times [2024-10-14 13:24:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400214733] [2024-10-14 13:24:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:24,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400214733] [2024-10-14 13:24:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400214733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-14 13:24:24,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105855498] [2024-10-14 13:24:24,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:24,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 13:24:24,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:24,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 13:24:24,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:24:24,977 INFO L87 Difference]: Start difference. First operand 1140 states and 1542 transitions. Second operand has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:26,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:26,566 INFO L93 Difference]: Finished difference Result 2669 states and 3602 transitions. [2024-10-14 13:24:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 13:24:26,567 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 136 [2024-10-14 13:24:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:26,573 INFO L225 Difference]: With dead ends: 2669 [2024-10-14 13:24:26,573 INFO L226 Difference]: Without dead ends: 1550 [2024-10-14 13:24:26,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2024-10-14 13:24:26,576 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 199 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:26,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 2212 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 13:24:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-10-14 13:24:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1303. [2024-10-14 13:24:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1062 states have (on average 1.2485875706214689) internal successors, (1326), 1078 states have internal predecessors, (1326), 216 states have call successors, (216), 24 states have call predecessors, (216), 24 states have return successors, (216), 200 states have call predecessors, (216), 216 states have call successors, (216) [2024-10-14 13:24:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1758 transitions. [2024-10-14 13:24:26,831 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1758 transitions. Word has length 136 [2024-10-14 13:24:26,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:26,831 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1758 transitions. [2024-10-14 13:24:26,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1758 transitions. [2024-10-14 13:24:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:24:26,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:26,833 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:26,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:24:26,833 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:26,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash -366325301, now seen corresponding path program 1 times [2024-10-14 13:24:26,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:26,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740553714] [2024-10-14 13:24:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:26,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:27,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740553714] [2024-10-14 13:24:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740553714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:27,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:24:27,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842151627] [2024-10-14 13:24:27,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:27,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:24:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:27,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:24:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:24:27,512 INFO L87 Difference]: Start difference. First operand 1303 states and 1758 transitions. Second operand has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:28,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:28,364 INFO L93 Difference]: Finished difference Result 2600 states and 3505 transitions. [2024-10-14 13:24:28,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 13:24:28,365 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-14 13:24:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:28,370 INFO L225 Difference]: With dead ends: 2600 [2024-10-14 13:24:28,370 INFO L226 Difference]: Without dead ends: 1318 [2024-10-14 13:24:28,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:24:28,373 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 132 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:28,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1170 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:24:28,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-10-14 13:24:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1276. [2024-10-14 13:24:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1044 states have (on average 1.2452107279693487) internal successors, (1300), 1059 states have internal predecessors, (1300), 208 states have call successors, (208), 23 states have call predecessors, (208), 23 states have return successors, (208), 193 states have call predecessors, (208), 208 states have call successors, (208) [2024-10-14 13:24:28,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1716 transitions. [2024-10-14 13:24:28,693 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1716 transitions. Word has length 136 [2024-10-14 13:24:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:28,694 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1716 transitions. [2024-10-14 13:24:28,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 13:24:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1716 transitions. [2024-10-14 13:24:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 13:24:28,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:28,696 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:28,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:24:28,696 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:28,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:28,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2095458696, now seen corresponding path program 1 times [2024-10-14 13:24:28,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:28,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999825759] [2024-10-14 13:24:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:28,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999825759] [2024-10-14 13:24:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999825759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:28,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:28,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628216061] [2024-10-14 13:24:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:28,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:28,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:28,953 INFO L87 Difference]: Start difference. First operand 1276 states and 1716 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:29,374 INFO L93 Difference]: Finished difference Result 2630 states and 3546 transitions. [2024-10-14 13:24:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:24:29,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-10-14 13:24:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:29,381 INFO L225 Difference]: With dead ends: 2630 [2024-10-14 13:24:29,381 INFO L226 Difference]: Without dead ends: 1806 [2024-10-14 13:24:29,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:24:29,384 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 72 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:29,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 939 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:24:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2024-10-14 13:24:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1622. [2024-10-14 13:24:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1354 states have (on average 1.257016248153619) internal successors, (1702), 1373 states have internal predecessors, (1702), 240 states have call successors, (240), 27 states have call predecessors, (240), 27 states have return successors, (240), 221 states have call predecessors, (240), 240 states have call successors, (240) [2024-10-14 13:24:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2182 transitions. [2024-10-14 13:24:29,666 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2182 transitions. Word has length 137 [2024-10-14 13:24:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:29,666 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2182 transitions. [2024-10-14 13:24:29,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2182 transitions. [2024-10-14 13:24:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 13:24:29,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:29,668 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:29,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:24:29,668 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:29,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1975593576, now seen corresponding path program 1 times [2024-10-14 13:24:29,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197606435] [2024-10-14 13:24:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:29,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:30,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197606435] [2024-10-14 13:24:30,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197606435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:30,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:30,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:24:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627995649] [2024-10-14 13:24:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:30,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:24:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:30,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:24:30,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:24:30,534 INFO L87 Difference]: Start difference. First operand 1622 states and 2182 transitions. Second operand has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:31,582 INFO L93 Difference]: Finished difference Result 3259 states and 4378 transitions. [2024-10-14 13:24:31,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 13:24:31,583 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 137 [2024-10-14 13:24:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:31,589 INFO L225 Difference]: With dead ends: 3259 [2024-10-14 13:24:31,589 INFO L226 Difference]: Without dead ends: 1638 [2024-10-14 13:24:31,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:24:31,592 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 97 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:31,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2034 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:24:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-10-14 13:24:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1566. [2024-10-14 13:24:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1298 states have (on average 1.2557781201848999) internal successors, (1630), 1317 states have internal predecessors, (1630), 240 states have call successors, (240), 27 states have call predecessors, (240), 27 states have return successors, (240), 221 states have call predecessors, (240), 240 states have call successors, (240) [2024-10-14 13:24:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2110 transitions. [2024-10-14 13:24:31,914 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2110 transitions. Word has length 137 [2024-10-14 13:24:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:31,915 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2110 transitions. [2024-10-14 13:24:31,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2110 transitions. [2024-10-14 13:24:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 13:24:31,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:31,916 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:31,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:24:31,916 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:31,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2094570077, now seen corresponding path program 1 times [2024-10-14 13:24:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:31,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396141549] [2024-10-14 13:24:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:31,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:32,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:32,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396141549] [2024-10-14 13:24:32,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396141549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:32,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:32,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:24:32,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284425823] [2024-10-14 13:24:32,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:32,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:24:32,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:32,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:24:32,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:24:32,201 INFO L87 Difference]: Start difference. First operand 1566 states and 2110 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:33,020 INFO L93 Difference]: Finished difference Result 3325 states and 4468 transitions. [2024-10-14 13:24:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:24:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-14 13:24:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:33,031 INFO L225 Difference]: With dead ends: 3325 [2024-10-14 13:24:33,031 INFO L226 Difference]: Without dead ends: 1760 [2024-10-14 13:24:33,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:24:33,036 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 145 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:33,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 634 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:24:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-10-14 13:24:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1648. [2024-10-14 13:24:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1366 states have (on average 1.2489019033674964) internal successors, (1706), 1386 states have internal predecessors, (1706), 252 states have call successors, (252), 29 states have call predecessors, (252), 29 states have return successors, (252), 232 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 13:24:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2210 transitions. [2024-10-14 13:24:33,349 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2210 transitions. Word has length 138 [2024-10-14 13:24:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:33,349 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2210 transitions. [2024-10-14 13:24:33,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2210 transitions. [2024-10-14 13:24:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 13:24:33,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:33,351 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:33,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:24:33,351 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:33,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash -949300806, now seen corresponding path program 1 times [2024-10-14 13:24:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686075254] [2024-10-14 13:24:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:33,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:33,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:33,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686075254] [2024-10-14 13:24:33,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686075254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:33,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:33,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:24:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336762541] [2024-10-14 13:24:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:33,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:24:33,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:24:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:24:33,463 INFO L87 Difference]: Start difference. First operand 1648 states and 2210 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:33,825 INFO L93 Difference]: Finished difference Result 3549 states and 4750 transitions. [2024-10-14 13:24:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:24:33,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-14 13:24:33,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:33,833 INFO L225 Difference]: With dead ends: 3549 [2024-10-14 13:24:33,833 INFO L226 Difference]: Without dead ends: 1902 [2024-10-14 13:24:33,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:24:33,836 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 42 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:33,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 597 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:24:33,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2024-10-14 13:24:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1754. [2024-10-14 13:24:34,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1472 states have (on average 1.2452445652173914) internal successors, (1833), 1492 states have internal predecessors, (1833), 252 states have call successors, (252), 29 states have call predecessors, (252), 29 states have return successors, (252), 232 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 13:24:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2337 transitions. [2024-10-14 13:24:34,170 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2337 transitions. Word has length 138 [2024-10-14 13:24:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:34,171 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 2337 transitions. [2024-10-14 13:24:34,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:34,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2337 transitions. [2024-10-14 13:24:34,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 13:24:34,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:34,172 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:34,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:24:34,172 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:34,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:34,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1575586829, now seen corresponding path program 1 times [2024-10-14 13:24:34,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:34,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458900637] [2024-10-14 13:24:34,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:34,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:34,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:34,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458900637] [2024-10-14 13:24:34,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458900637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:34,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:34,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:24:34,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202556569] [2024-10-14 13:24:34,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:34,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:24:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:34,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:24:34,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:24:34,585 INFO L87 Difference]: Start difference. First operand 1754 states and 2337 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:35,315 INFO L93 Difference]: Finished difference Result 3552 states and 4721 transitions. [2024-10-14 13:24:35,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:24:35,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-10-14 13:24:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:35,327 INFO L225 Difference]: With dead ends: 3552 [2024-10-14 13:24:35,327 INFO L226 Difference]: Without dead ends: 1799 [2024-10-14 13:24:35,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:24:35,330 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 142 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:35,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 689 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:24:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-10-14 13:24:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1623. [2024-10-14 13:24:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1362 states have (on average 1.251101321585903) internal successors, (1704), 1380 states have internal predecessors, (1704), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-14 13:24:35,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2168 transitions. [2024-10-14 13:24:35,613 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2168 transitions. Word has length 139 [2024-10-14 13:24:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:35,614 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2168 transitions. [2024-10-14 13:24:35,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:35,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2168 transitions. [2024-10-14 13:24:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 13:24:35,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:35,615 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:35,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:24:35,615 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:35,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:35,616 INFO L85 PathProgramCache]: Analyzing trace with hash 415628068, now seen corresponding path program 1 times [2024-10-14 13:24:35,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:35,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054656479] [2024-10-14 13:24:35,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:35,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054656479] [2024-10-14 13:24:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054656479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:35,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:35,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:35,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125517729] [2024-10-14 13:24:35,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:35,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:35,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:35,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:35,719 INFO L87 Difference]: Start difference. First operand 1623 states and 2168 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:36,026 INFO L93 Difference]: Finished difference Result 3364 states and 4473 transitions. [2024-10-14 13:24:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:24:36,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-14 13:24:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:36,032 INFO L225 Difference]: With dead ends: 3364 [2024-10-14 13:24:36,032 INFO L226 Difference]: Without dead ends: 1742 [2024-10-14 13:24:36,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:36,035 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:36,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 698 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:24:36,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2024-10-14 13:24:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1653. [2024-10-14 13:24:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1392 states have (on average 1.2456896551724137) internal successors, (1734), 1410 states have internal predecessors, (1734), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-14 13:24:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2198 transitions. [2024-10-14 13:24:36,320 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2198 transitions. Word has length 139 [2024-10-14 13:24:36,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:36,321 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2198 transitions. [2024-10-14 13:24:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2198 transitions. [2024-10-14 13:24:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 13:24:36,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:36,329 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:36,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 13:24:36,329 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:36,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash -264430302, now seen corresponding path program 1 times [2024-10-14 13:24:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165236069] [2024-10-14 13:24:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165236069] [2024-10-14 13:24:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165236069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:36,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:36,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:24:36,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369599958] [2024-10-14 13:24:36,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:36,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:24:36,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:24:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:24:36,492 INFO L87 Difference]: Start difference. First operand 1653 states and 2198 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:36,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:36,986 INFO L93 Difference]: Finished difference Result 2888 states and 3860 transitions. [2024-10-14 13:24:36,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:24:36,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-14 13:24:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:36,992 INFO L225 Difference]: With dead ends: 2888 [2024-10-14 13:24:36,992 INFO L226 Difference]: Without dead ends: 1683 [2024-10-14 13:24:36,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:24:36,994 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 38 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:36,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 578 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:24:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-10-14 13:24:37,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1609. [2024-10-14 13:24:37,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1348 states have (on average 1.2403560830860534) internal successors, (1672), 1366 states have internal predecessors, (1672), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-14 13:24:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2136 transitions. [2024-10-14 13:24:37,286 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2136 transitions. Word has length 139 [2024-10-14 13:24:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:37,286 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2136 transitions. [2024-10-14 13:24:37,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2136 transitions. [2024-10-14 13:24:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 13:24:37,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:37,287 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:37,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:24:37,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:37,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1751451867, now seen corresponding path program 1 times [2024-10-14 13:24:37,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:37,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85360604] [2024-10-14 13:24:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:37,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:37,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:37,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85360604] [2024-10-14 13:24:37,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85360604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:37,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:37,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:24:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916050424] [2024-10-14 13:24:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:37,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:24:37,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:24:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:24:37,957 INFO L87 Difference]: Start difference. First operand 1609 states and 2136 transitions. Second operand has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:39,145 INFO L93 Difference]: Finished difference Result 3517 states and 4654 transitions. [2024-10-14 13:24:39,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:24:39,146 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-10-14 13:24:39,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:39,161 INFO L225 Difference]: With dead ends: 3517 [2024-10-14 13:24:39,161 INFO L226 Difference]: Without dead ends: 2356 [2024-10-14 13:24:39,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:24:39,165 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 163 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:39,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1103 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:24:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2024-10-14 13:24:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1649. [2024-10-14 13:24:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1372 states have (on average 1.2303206997084548) internal successors, (1688), 1390 states have internal predecessors, (1688), 244 states have call successors, (244), 32 states have call predecessors, (244), 32 states have return successors, (244), 226 states have call predecessors, (244), 244 states have call successors, (244) [2024-10-14 13:24:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2176 transitions. [2024-10-14 13:24:39,479 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2176 transitions. Word has length 139 [2024-10-14 13:24:39,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:39,479 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2176 transitions. [2024-10-14 13:24:39,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2176 transitions. [2024-10-14 13:24:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 13:24:39,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:39,481 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:39,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 13:24:39,481 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:39,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash -573870648, now seen corresponding path program 1 times [2024-10-14 13:24:39,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:39,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904058772] [2024-10-14 13:24:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:39,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:39,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:39,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904058772] [2024-10-14 13:24:39,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904058772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:39,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:39,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:39,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504901157] [2024-10-14 13:24:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:39,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:39,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:39,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:39,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:39,785 INFO L87 Difference]: Start difference. First operand 1649 states and 2176 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:40,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:40,531 INFO L93 Difference]: Finished difference Result 3291 states and 4333 transitions. [2024-10-14 13:24:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:24:40,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-14 13:24:40,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:40,539 INFO L225 Difference]: With dead ends: 3291 [2024-10-14 13:24:40,539 INFO L226 Difference]: Without dead ends: 1643 [2024-10-14 13:24:40,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:24:40,543 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 137 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:40,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 665 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:24:40,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-10-14 13:24:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1567. [2024-10-14 13:24:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1306 states have (on average 1.2289433384379786) internal successors, (1605), 1323 states have internal predecessors, (1605), 230 states have call successors, (230), 30 states have call predecessors, (230), 30 states have return successors, (230), 213 states have call predecessors, (230), 230 states have call successors, (230) [2024-10-14 13:24:40,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2065 transitions. [2024-10-14 13:24:40,840 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2065 transitions. Word has length 140 [2024-10-14 13:24:40,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:40,840 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2065 transitions. [2024-10-14 13:24:40,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2065 transitions. [2024-10-14 13:24:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 13:24:40,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:40,841 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:24:40,842 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:40,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1405583148, now seen corresponding path program 1 times [2024-10-14 13:24:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363167754] [2024-10-14 13:24:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:40,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:41,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:41,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363167754] [2024-10-14 13:24:41,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363167754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:41,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:41,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:24:41,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177102788] [2024-10-14 13:24:41,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:41,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:24:41,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:24:41,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:24:41,210 INFO L87 Difference]: Start difference. First operand 1567 states and 2065 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:41,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:41,863 INFO L93 Difference]: Finished difference Result 3314 states and 4377 transitions. [2024-10-14 13:24:41,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:24:41,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-10-14 13:24:41,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:41,871 INFO L225 Difference]: With dead ends: 3314 [2024-10-14 13:24:41,871 INFO L226 Difference]: Without dead ends: 2113 [2024-10-14 13:24:41,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:24:41,874 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 73 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:41,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1296 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:24:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-10-14 13:24:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1863. [2024-10-14 13:24:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1863 states, 1558 states have (on average 1.2349165596919127) internal successors, (1924), 1579 states have internal predecessors, (1924), 270 states have call successors, (270), 34 states have call predecessors, (270), 34 states have return successors, (270), 249 states have call predecessors, (270), 270 states have call successors, (270) [2024-10-14 13:24:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2464 transitions. [2024-10-14 13:24:42,210 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2464 transitions. Word has length 140 [2024-10-14 13:24:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:42,210 INFO L471 AbstractCegarLoop]: Abstraction has 1863 states and 2464 transitions. [2024-10-14 13:24:42,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:42,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2464 transitions. [2024-10-14 13:24:42,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 13:24:42,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:42,211 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:42,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:24:42,212 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:42,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1186728430, now seen corresponding path program 1 times [2024-10-14 13:24:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:42,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907618847] [2024-10-14 13:24:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:42,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:42,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:42,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907618847] [2024-10-14 13:24:42,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907618847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:42,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:42,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:24:42,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868005105] [2024-10-14 13:24:42,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:42,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:24:42,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:42,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:24:42,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:24:42,437 INFO L87 Difference]: Start difference. First operand 1863 states and 2464 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:42,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:42,860 INFO L93 Difference]: Finished difference Result 3950 states and 5199 transitions. [2024-10-14 13:24:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:24:42,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-10-14 13:24:42,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:42,867 INFO L225 Difference]: With dead ends: 3950 [2024-10-14 13:24:42,867 INFO L226 Difference]: Without dead ends: 2088 [2024-10-14 13:24:42,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:42,871 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 90 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:42,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 579 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:24:42,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-14 13:24:43,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2077. [2024-10-14 13:24:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1743 states have (on average 1.227768215720023) internal successors, (2140), 1773 states have internal predecessors, (2140), 288 states have call successors, (288), 45 states have call predecessors, (288), 45 states have return successors, (288), 258 states have call predecessors, (288), 288 states have call successors, (288) [2024-10-14 13:24:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2716 transitions. [2024-10-14 13:24:43,278 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2716 transitions. Word has length 140 [2024-10-14 13:24:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:43,278 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2716 transitions. [2024-10-14 13:24:43,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 13:24:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2716 transitions. [2024-10-14 13:24:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 13:24:43,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:43,279 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:43,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:24:43,280 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:43,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:43,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1614187842, now seen corresponding path program 1 times [2024-10-14 13:24:43,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:43,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671014660] [2024-10-14 13:24:43,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:43,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:43,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671014660] [2024-10-14 13:24:43,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671014660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:43,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510622580] [2024-10-14 13:24:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:43,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:43,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:43,607 INFO L87 Difference]: Start difference. First operand 2077 states and 2716 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:44,360 INFO L93 Difference]: Finished difference Result 4397 states and 5750 transitions. [2024-10-14 13:24:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:24:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-10-14 13:24:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:44,368 INFO L225 Difference]: With dead ends: 4397 [2024-10-14 13:24:44,368 INFO L226 Difference]: Without dead ends: 2329 [2024-10-14 13:24:44,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:24:44,372 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 61 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:44,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 493 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:24:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-14 13:24:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1612. [2024-10-14 13:24:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1336 states have (on average 1.2095808383233533) internal successors, (1616), 1359 states have internal predecessors, (1616), 236 states have call successors, (236), 39 states have call predecessors, (236), 39 states have return successors, (236), 213 states have call predecessors, (236), 236 states have call successors, (236) [2024-10-14 13:24:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2088 transitions. [2024-10-14 13:24:44,809 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2088 transitions. Word has length 140 [2024-10-14 13:24:44,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:44,809 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2088 transitions. [2024-10-14 13:24:44,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2088 transitions. [2024-10-14 13:24:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 13:24:44,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:44,810 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:44,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:24:44,811 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:44,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:44,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1781342976, now seen corresponding path program 1 times [2024-10-14 13:24:44,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:44,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189190142] [2024-10-14 13:24:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:45,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189190142] [2024-10-14 13:24:45,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189190142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:45,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:45,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:24:45,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367786977] [2024-10-14 13:24:45,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:45,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:24:45,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:45,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:24:45,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:24:45,065 INFO L87 Difference]: Start difference. First operand 1612 states and 2088 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:45,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:45,792 INFO L93 Difference]: Finished difference Result 2747 states and 3559 transitions. [2024-10-14 13:24:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:24:45,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-14 13:24:45,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:45,802 INFO L225 Difference]: With dead ends: 2747 [2024-10-14 13:24:45,802 INFO L226 Difference]: Without dead ends: 1565 [2024-10-14 13:24:45,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:24:45,804 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 69 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:45,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 627 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:24:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-10-14 13:24:46,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1545. [2024-10-14 13:24:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1268 states have (on average 1.1892744479495267) internal successors, (1508), 1291 states have internal predecessors, (1508), 236 states have call successors, (236), 40 states have call predecessors, (236), 40 states have return successors, (236), 213 states have call predecessors, (236), 236 states have call successors, (236) [2024-10-14 13:24:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1980 transitions. [2024-10-14 13:24:46,214 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1980 transitions. Word has length 141 [2024-10-14 13:24:46,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:46,214 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 1980 transitions. [2024-10-14 13:24:46,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:46,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1980 transitions. [2024-10-14 13:24:46,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 13:24:46,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:46,217 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:46,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 13:24:46,218 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:46,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 170777018, now seen corresponding path program 1 times [2024-10-14 13:24:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042072101] [2024-10-14 13:24:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:46,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042072101] [2024-10-14 13:24:47,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042072101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:47,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:47,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 13:24:47,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257130604] [2024-10-14 13:24:47,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:47,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 13:24:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 13:24:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:24:47,534 INFO L87 Difference]: Start difference. First operand 1545 states and 1980 transitions. Second operand has 18 states, 16 states have (on average 3.4375) internal successors, (55), 18 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:49,492 INFO L93 Difference]: Finished difference Result 3171 states and 4029 transitions. [2024-10-14 13:24:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-14 13:24:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.4375) internal successors, (55), 18 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-10-14 13:24:49,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:49,500 INFO L225 Difference]: With dead ends: 3171 [2024-10-14 13:24:49,500 INFO L226 Difference]: Without dead ends: 3169 [2024-10-14 13:24:49,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=200, Invalid=1692, Unknown=0, NotChecked=0, Total=1892 [2024-10-14 13:24:49,502 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 262 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:49,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1521 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:24:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2024-10-14 13:24:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3006. [2024-10-14 13:24:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2510 states have (on average 1.1812749003984064) internal successors, (2965), 2554 states have internal predecessors, (2965), 420 states have call successors, (420), 75 states have call predecessors, (420), 75 states have return successors, (420), 376 states have call predecessors, (420), 420 states have call successors, (420) [2024-10-14 13:24:50,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 3805 transitions. [2024-10-14 13:24:50,161 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 3805 transitions. Word has length 142 [2024-10-14 13:24:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:50,162 INFO L471 AbstractCegarLoop]: Abstraction has 3006 states and 3805 transitions. [2024-10-14 13:24:50,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.4375) internal successors, (55), 18 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 3805 transitions. [2024-10-14 13:24:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 13:24:50,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:50,163 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:50,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:24:50,164 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:50,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1668538255, now seen corresponding path program 1 times [2024-10-14 13:24:50,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:50,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593243625] [2024-10-14 13:24:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:50,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:50,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:50,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593243625] [2024-10-14 13:24:50,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593243625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:50,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:50,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:24:50,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256856966] [2024-10-14 13:24:50,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:50,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:24:50,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:50,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:24:50,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:24:50,969 INFO L87 Difference]: Start difference. First operand 3006 states and 3805 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:52,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:52,843 INFO L93 Difference]: Finished difference Result 6200 states and 7827 transitions. [2024-10-14 13:24:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 13:24:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-10-14 13:24:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:52,851 INFO L225 Difference]: With dead ends: 6200 [2024-10-14 13:24:52,851 INFO L226 Difference]: Without dead ends: 3203 [2024-10-14 13:24:52,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-10-14 13:24:52,856 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 409 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:52,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 846 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:24:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-10-14 13:24:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3002. [2024-10-14 13:24:53,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2505 states have (on average 1.1796407185628743) internal successors, (2955), 2549 states have internal predecessors, (2955), 420 states have call successors, (420), 76 states have call predecessors, (420), 76 states have return successors, (420), 376 states have call predecessors, (420), 420 states have call successors, (420) [2024-10-14 13:24:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 3795 transitions. [2024-10-14 13:24:53,502 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 3795 transitions. Word has length 142 [2024-10-14 13:24:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:53,503 INFO L471 AbstractCegarLoop]: Abstraction has 3002 states and 3795 transitions. [2024-10-14 13:24:53,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 13:24:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 3795 transitions. [2024-10-14 13:24:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 13:24:53,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:53,504 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:53,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 13:24:53,504 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 389631736, now seen corresponding path program 1 times [2024-10-14 13:24:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927698471] [2024-10-14 13:24:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:53,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:53,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927698471] [2024-10-14 13:24:53,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927698471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:53,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:53,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:24:53,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439958671] [2024-10-14 13:24:53,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:53,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:24:53,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:53,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:24:53,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:24:53,649 INFO L87 Difference]: Start difference. First operand 3002 states and 3795 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:24:54,343 INFO L93 Difference]: Finished difference Result 6289 states and 7932 transitions. [2024-10-14 13:24:54,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:24:54,344 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-14 13:24:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:24:54,352 INFO L225 Difference]: With dead ends: 6289 [2024-10-14 13:24:54,352 INFO L226 Difference]: Without dead ends: 3296 [2024-10-14 13:24:54,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:24:54,358 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 27 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:24:54,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 564 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:24:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2024-10-14 13:24:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3190. [2024-10-14 13:24:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 2693 states have (on average 1.1771258819160788) internal successors, (3170), 2737 states have internal predecessors, (3170), 420 states have call successors, (420), 76 states have call predecessors, (420), 76 states have return successors, (420), 376 states have call predecessors, (420), 420 states have call successors, (420) [2024-10-14 13:24:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4010 transitions. [2024-10-14 13:24:55,241 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4010 transitions. Word has length 142 [2024-10-14 13:24:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:24:55,241 INFO L471 AbstractCegarLoop]: Abstraction has 3190 states and 4010 transitions. [2024-10-14 13:24:55,241 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-14 13:24:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4010 transitions. [2024-10-14 13:24:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 13:24:55,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:24:55,246 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:24:55,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 13:24:55,246 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:24:55,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:24:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash -481476598, now seen corresponding path program 1 times [2024-10-14 13:24:55,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:24:55,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428938023] [2024-10-14 13:24:55,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:24:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:24:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:24:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:24:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:24:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:24:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:24:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:24:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:24:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:24:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:24:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:24:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:24:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:24:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:24:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:24:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:24:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:24:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:24:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:24:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:24:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 13:24:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:24:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428938023] [2024-10-14 13:24:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428938023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:24:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:24:55,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:24:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690090984] [2024-10-14 13:24:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:24:55,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:24:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:24:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:24:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:24:55,752 INFO L87 Difference]: Start difference. First operand 3190 states and 4010 transitions. Second operand has 10 states, 8 states have (on average 7.0) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18)