./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-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 13:17:31,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 13:17:31,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 13:17:31,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 13:17:31,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 13:17:31,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 13:17:31,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 13:17:31,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 13:17:31,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 13:17:31,832 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 13:17:31,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 13:17:31,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 13:17:31,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 13:17:31,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 13:17:31,834 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 13:17:31,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 13:17:31,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 13:17:31,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 13:17:31,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 13:17:31,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 13:17:31,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 13:17:31,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 13:17:31,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 13:17:31,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 13:17:31,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 13:17:31,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 13:17:31,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 13:17:31,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:17:31,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 13:17:31,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 13:17:31,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 13:17:31,840 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 [2024-10-11 13:17:32,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 13:17:32,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 13:17:32,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 13:17:32,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 13:17:32,119 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 13:17:32,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i [2024-10-11 13:17:33,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 13:17:33,618 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 13:17:33,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i [2024-10-11 13:17:33,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b61e76fb/c27a08794fc744429d6e7840c32131f7/FLAG4c4d3cc4c [2024-10-11 13:17:34,007 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b61e76fb/c27a08794fc744429d6e7840c32131f7 [2024-10-11 13:17:34,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 13:17:34,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 13:17:34,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 13:17:34,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 13:17:34,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 13:17:34,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc3be2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34, skipping insertion in model container [2024-10-11 13:17:34,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 13:17:34,194 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-5.i[915,928] [2024-10-11 13:17:34,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:17:34,284 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 13:17:34,297 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-5.i[915,928] [2024-10-11 13:17:34,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:17:34,369 INFO L204 MainTranslator]: Completed translation [2024-10-11 13:17:34,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34 WrapperNode [2024-10-11 13:17:34,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 13:17:34,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 13:17:34,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 13:17:34,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 13:17:34,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,440 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 418 [2024-10-11 13:17:34,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 13:17:34,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 13:17:34,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 13:17:34,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 13:17:34,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,483 INFO L175 MemorySlicer]: Split 122 memory accesses to 6 slices as follows [2, 6, 3, 28, 59, 24]. 48 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 6, 4, 3]. The 17 writes are split as follows [0, 1, 1, 6, 6, 3]. [2024-10-11 13:17:34,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 13:17:34,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 13:17:34,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 13:17:34,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 13:17:34,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (1/1) ... [2024-10-11 13:17:34,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:17:34,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:17:34,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 13:17:34,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 13:17:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 13:17:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 13:17:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 13:17:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 13:17:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 13:17:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 13:17:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 13:17:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 13:17:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 13:17:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 13:17:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 13:17:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 13:17:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 13:17:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 13:17:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 13:17:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 13:17:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 13:17:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 13:17:34,767 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 13:17:34,769 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 13:17:35,134 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-10-11 13:17:35,134 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 13:17:35,159 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 13:17:35,160 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 13:17:35,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:17:35 BoogieIcfgContainer [2024-10-11 13:17:35,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 13:17:35,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 13:17:35,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 13:17:35,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 13:17:35,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:17:34" (1/3) ... [2024-10-11 13:17:35,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7629a21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:17:35, skipping insertion in model container [2024-10-11 13:17:35,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:17:34" (2/3) ... [2024-10-11 13:17:35,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7629a21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:17:35, skipping insertion in model container [2024-10-11 13:17:35,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:17:35" (3/3) ... [2024-10-11 13:17:35,167 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-5.i [2024-10-11 13:17:35,180 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 13:17:35,180 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 13:17:35,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 13:17:35,236 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;@21a899d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 13:17:35,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 13:17:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 13:17:35,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:35,252 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:35,252 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:35,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:35,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1309560060, now seen corresponding path program 1 times [2024-10-11 13:17:35,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:35,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043360461] [2024-10-11 13:17:35,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:35,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:35,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043360461] [2024-10-11 13:17:35,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043360461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:35,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:35,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 13:17:35,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908665567] [2024-10-11 13:17:35,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:35,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 13:17:35,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:35,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 13:17:35,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:17:35,691 INFO L87 Difference]: Start difference. First operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:35,738 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2024-10-11 13:17:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 13:17:35,744 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2024-10-11 13:17:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:35,750 INFO L225 Difference]: With dead ends: 173 [2024-10-11 13:17:35,751 INFO L226 Difference]: Without dead ends: 86 [2024-10-11 13:17:35,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:17:35,757 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:35,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-11 13:17:35,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-11 13:17:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2024-10-11 13:17:35,797 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2024-10-11 13:17:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:35,797 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2024-10-11 13:17:35,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2024-10-11 13:17:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 13:17:35,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:35,800 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:35,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 13:17:35,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:35,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:35,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2013213484, now seen corresponding path program 1 times [2024-10-11 13:17:35,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:35,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012560482] [2024-10-11 13:17:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:35,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012560482] [2024-10-11 13:17:36,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012560482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:36,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:17:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959180961] [2024-10-11 13:17:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:36,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:17:36,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:36,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:17:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,261 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:36,308 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-10-11 13:17:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 13:17:36,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2024-10-11 13:17:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:36,310 INFO L225 Difference]: With dead ends: 173 [2024-10-11 13:17:36,310 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 13:17:36,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,314 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:36,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 13:17:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-11 13:17:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2024-10-11 13:17:36,324 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2024-10-11 13:17:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:36,326 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2024-10-11 13:17:36,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2024-10-11 13:17:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 13:17:36,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:36,328 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:36,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 13:17:36,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:36,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 983654265, now seen corresponding path program 1 times [2024-10-11 13:17:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607082791] [2024-10-11 13:17:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:36,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607082791] [2024-10-11 13:17:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607082791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:36,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:36,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:17:36,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474219412] [2024-10-11 13:17:36,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:36,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:17:36,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:36,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:17:36,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,529 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:36,576 INFO L93 Difference]: Finished difference Result 178 states and 255 transitions. [2024-10-11 13:17:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 13:17:36,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-11 13:17:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:36,578 INFO L225 Difference]: With dead ends: 178 [2024-10-11 13:17:36,578 INFO L226 Difference]: Without dead ends: 91 [2024-10-11 13:17:36,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,580 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:36,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 343 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-11 13:17:36,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2024-10-11 13:17:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2024-10-11 13:17:36,587 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 144 [2024-10-11 13:17:36,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:36,587 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2024-10-11 13:17:36,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,587 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2024-10-11 13:17:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 13:17:36,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:36,591 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:36,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 13:17:36,591 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:36,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash 174307639, now seen corresponding path program 1 times [2024-10-11 13:17:36,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:36,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266305601] [2024-10-11 13:17:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:36,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:36,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:36,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266305601] [2024-10-11 13:17:36,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266305601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:36,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:17:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087250116] [2024-10-11 13:17:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:36,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:17:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:36,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:17:36,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,741 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:36,777 INFO L93 Difference]: Finished difference Result 182 states and 259 transitions. [2024-10-11 13:17:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 13:17:36,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-11 13:17:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:36,779 INFO L225 Difference]: With dead ends: 182 [2024-10-11 13:17:36,779 INFO L226 Difference]: Without dead ends: 93 [2024-10-11 13:17:36,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,780 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:36,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:36,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-11 13:17:36,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2024-10-11 13:17:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-10-11 13:17:36,795 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 144 [2024-10-11 13:17:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:36,796 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-10-11 13:17:36,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-10-11 13:17:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 13:17:36,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:36,801 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:36,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 13:17:36,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:36,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash 231565941, now seen corresponding path program 1 times [2024-10-11 13:17:36,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:36,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373694863] [2024-10-11 13:17:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:36,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:36,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:36,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373694863] [2024-10-11 13:17:36,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373694863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:36,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:36,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:17:36,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417562440] [2024-10-11 13:17:36,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:36,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:17:36,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:36,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:17:36,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,910 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:36,935 INFO L93 Difference]: Finished difference Result 186 states and 263 transitions. [2024-10-11 13:17:36,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 13:17:36,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-11 13:17:36,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:36,936 INFO L225 Difference]: With dead ends: 186 [2024-10-11 13:17:36,936 INFO L226 Difference]: Without dead ends: 95 [2024-10-11 13:17:36,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:36,938 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:36,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-11 13:17:36,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2024-10-11 13:17:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2024-10-11 13:17:36,947 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 144 [2024-10-11 13:17:36,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:36,948 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2024-10-11 13:17:36,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:36,949 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-10-11 13:17:36,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 13:17:36,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:36,950 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:36,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 13:17:36,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:36,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:36,951 INFO L85 PathProgramCache]: Analyzing trace with hash 231625523, now seen corresponding path program 1 times [2024-10-11 13:17:36,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:36,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862816091] [2024-10-11 13:17:36,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:36,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:37,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862816091] [2024-10-11 13:17:37,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862816091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:37,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:37,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:17:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116464460] [2024-10-11 13:17:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:37,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:17:37,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:37,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:17:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,196 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:37,251 INFO L93 Difference]: Finished difference Result 187 states and 263 transitions. [2024-10-11 13:17:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:17:37,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-11 13:17:37,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:37,254 INFO L225 Difference]: With dead ends: 187 [2024-10-11 13:17:37,254 INFO L226 Difference]: Without dead ends: 94 [2024-10-11 13:17:37,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,256 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 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 [2024-10-11 13:17:37,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-11 13:17:37,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-10-11 13:17:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 72 states have internal predecessors, (91), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2024-10-11 13:17:37,267 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 144 [2024-10-11 13:17:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:37,267 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2024-10-11 13:17:37,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2024-10-11 13:17:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 13:17:37,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:37,268 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:37,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 13:17:37,269 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:37,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1048238155, now seen corresponding path program 1 times [2024-10-11 13:17:37,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:37,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797363534] [2024-10-11 13:17:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:37,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:37,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797363534] [2024-10-11 13:17:37,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797363534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:37,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:37,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:17:37,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846976931] [2024-10-11 13:17:37,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:37,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:17:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:17:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,540 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:37,560 INFO L93 Difference]: Finished difference Result 187 states and 261 transitions. [2024-10-11 13:17:37,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:17:37,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-11 13:17:37,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:37,562 INFO L225 Difference]: With dead ends: 187 [2024-10-11 13:17:37,562 INFO L226 Difference]: Without dead ends: 94 [2024-10-11 13:17:37,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,563 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:37,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-11 13:17:37,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-10-11 13:17:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.25) internal successors, (90), 72 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2024-10-11 13:17:37,575 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 144 [2024-10-11 13:17:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:37,576 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2024-10-11 13:17:37,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2024-10-11 13:17:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 13:17:37,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:37,577 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:37,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 13:17:37,577 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:37,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1538074778, now seen corresponding path program 1 times [2024-10-11 13:17:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767449188] [2024-10-11 13:17:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:37,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:37,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767449188] [2024-10-11 13:17:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767449188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:37,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:37,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:17:37,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708319106] [2024-10-11 13:17:37,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:37,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:17:37,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:17:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,755 INFO L87 Difference]: Start difference. First operand 94 states and 130 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:37,800 INFO L93 Difference]: Finished difference Result 187 states and 259 transitions. [2024-10-11 13:17:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:17:37,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-10-11 13:17:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:37,801 INFO L225 Difference]: With dead ends: 187 [2024-10-11 13:17:37,801 INFO L226 Difference]: Without dead ends: 94 [2024-10-11 13:17:37,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:17:37,802 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 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 [2024-10-11 13:17:37,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:37,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-11 13:17:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-10-11 13:17:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 72 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 129 transitions. [2024-10-11 13:17:37,807 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 129 transitions. Word has length 146 [2024-10-11 13:17:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:37,807 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 129 transitions. [2024-10-11 13:17:37,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 129 transitions. [2024-10-11 13:17:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 13:17:37,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:37,808 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:37,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 13:17:37,809 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:37,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash -150868964, now seen corresponding path program 1 times [2024-10-11 13:17:37,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:37,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244751163] [2024-10-11 13:17:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:39,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:39,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244751163] [2024-10-11 13:17:39,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244751163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:39,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:39,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 13:17:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176296329] [2024-10-11 13:17:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:39,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 13:17:39,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 13:17:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 13:17:39,169 INFO L87 Difference]: Start difference. First operand 94 states and 129 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:39,872 INFO L93 Difference]: Finished difference Result 336 states and 465 transitions. [2024-10-11 13:17:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 13:17:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-10-11 13:17:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:39,874 INFO L225 Difference]: With dead ends: 336 [2024-10-11 13:17:39,874 INFO L226 Difference]: Without dead ends: 243 [2024-10-11 13:17:39,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:17:39,875 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 175 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:39,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 771 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 13:17:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-10-11 13:17:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 181. [2024-10-11 13:17:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 138 states have (on average 1.2246376811594204) internal successors, (169), 138 states have internal predecessors, (169), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2024-10-11 13:17:39,887 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 146 [2024-10-11 13:17:39,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:39,887 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2024-10-11 13:17:39,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:39,888 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2024-10-11 13:17:39,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 13:17:39,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:39,889 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:39,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 13:17:39,889 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:39,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1657340374, now seen corresponding path program 1 times [2024-10-11 13:17:39,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:39,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377491574] [2024-10-11 13:17:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:40,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:40,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377491574] [2024-10-11 13:17:40,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377491574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:40,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:40,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 13:17:40,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210857328] [2024-10-11 13:17:40,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:40,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 13:17:40,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 13:17:40,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:40,062 INFO L87 Difference]: Start difference. First operand 181 states and 249 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:40,112 INFO L93 Difference]: Finished difference Result 367 states and 505 transitions. [2024-10-11 13:17:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:17:40,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-10-11 13:17:40,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:40,114 INFO L225 Difference]: With dead ends: 367 [2024-10-11 13:17:40,114 INFO L226 Difference]: Without dead ends: 187 [2024-10-11 13:17:40,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:40,115 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:40,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 444 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-11 13:17:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-10-11 13:17:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 144 states have (on average 1.2152777777777777) internal successors, (175), 144 states have internal predecessors, (175), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-10-11 13:17:40,134 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 146 [2024-10-11 13:17:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:40,134 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-10-11 13:17:40,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-10-11 13:17:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-11 13:17:40,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:40,136 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:40,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 13:17:40,137 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:40,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1710852133, now seen corresponding path program 1 times [2024-10-11 13:17:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:40,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368552335] [2024-10-11 13:17:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-11 13:17:41,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:41,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368552335] [2024-10-11 13:17:41,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368552335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 13:17:41,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607226541] [2024-10-11 13:17:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:41,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:17:41,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:17:41,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:17:41,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 13:17:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:41,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-11 13:17:41,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 13:17:41,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-10-11 13:17:41,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 13:17:41,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 13:17:41,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-10-11 13:17:42,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 13:17:42,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-11 13:17:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-11 13:17:42,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 13:17:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607226541] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 13:17:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 13:17:42,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14, 11] total 24 [2024-10-11 13:17:42,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200638724] [2024-10-11 13:17:42,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:42,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 13:17:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:42,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 13:17:42,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-10-11 13:17:42,338 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:42,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:42,506 INFO L93 Difference]: Finished difference Result 347 states and 476 transitions. [2024-10-11 13:17:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 13:17:42,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-10-11 13:17:42,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:42,508 INFO L225 Difference]: With dead ends: 347 [2024-10-11 13:17:42,508 INFO L226 Difference]: Without dead ends: 251 [2024-10-11 13:17:42,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2024-10-11 13:17:42,509 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 115 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:42,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1125 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:17:42,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-11 13:17:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 95. [2024-10-11 13:17:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 73 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2024-10-11 13:17:42,517 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 147 [2024-10-11 13:17:42,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:42,517 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2024-10-11 13:17:42,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:42,517 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2024-10-11 13:17:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-11 13:17:42,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:42,518 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:42,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 13:17:42,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 13:17:42,719 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:42,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:42,720 INFO L85 PathProgramCache]: Analyzing trace with hash -781700388, now seen corresponding path program 1 times [2024-10-11 13:17:42,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:42,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427115993] [2024-10-11 13:17:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:42,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:43,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:43,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427115993] [2024-10-11 13:17:43,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427115993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:43,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:43,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 13:17:43,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554030583] [2024-10-11 13:17:43,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:43,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 13:17:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:43,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 13:17:43,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 13:17:43,059 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:43,106 INFO L93 Difference]: Finished difference Result 227 states and 304 transitions. [2024-10-11 13:17:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 13:17:43,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-11 13:17:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:43,107 INFO L225 Difference]: With dead ends: 227 [2024-10-11 13:17:43,108 INFO L226 Difference]: Without dead ends: 133 [2024-10-11 13:17:43,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:43,108 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 64 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:43,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 437 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:43,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-11 13:17:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 110. [2024-10-11 13:17:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 88 states have internal predecessors, (107), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 147 transitions. [2024-10-11 13:17:43,115 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 147 transitions. Word has length 148 [2024-10-11 13:17:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:43,115 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 147 transitions. [2024-10-11 13:17:43,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 147 transitions. [2024-10-11 13:17:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-11 13:17:43,116 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:43,116 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:43,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 13:17:43,116 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:43,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1642851742, now seen corresponding path program 1 times [2024-10-11 13:17:43,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:43,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413942340] [2024-10-11 13:17:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:43,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:43,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413942340] [2024-10-11 13:17:43,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413942340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:43,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:43,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:17:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241580658] [2024-10-11 13:17:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:43,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:17:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:43,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:17:43,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:43,359 INFO L87 Difference]: Start difference. First operand 110 states and 147 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:43,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:43,421 INFO L93 Difference]: Finished difference Result 219 states and 293 transitions. [2024-10-11 13:17:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 13:17:43,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-11 13:17:43,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:43,422 INFO L225 Difference]: With dead ends: 219 [2024-10-11 13:17:43,422 INFO L226 Difference]: Without dead ends: 110 [2024-10-11 13:17:43,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:17:43,423 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:43,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:17:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-11 13:17:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-10-11 13:17:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 states have internal predecessors, (105), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 145 transitions. [2024-10-11 13:17:43,429 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 145 transitions. Word has length 148 [2024-10-11 13:17:43,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:43,430 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 145 transitions. [2024-10-11 13:17:43,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 145 transitions. [2024-10-11 13:17:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 13:17:43,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:43,431 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:43,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 13:17:43,431 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:43,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1876534395, now seen corresponding path program 1 times [2024-10-11 13:17:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030235282] [2024-10-11 13:17:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:43,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-11 13:17:44,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030235282] [2024-10-11 13:17:44,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030235282] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 13:17:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846687521] [2024-10-11 13:17:44,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:44,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:17:44,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:17:44,151 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:17:44,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 13:17:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:44,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-11 13:17:44,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 13:17:44,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 13:17:44,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 13:17:44,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 13:17:44,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2024-10-11 13:17:44,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-10-11 13:17:44,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2024-10-11 13:17:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:44,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 13:17:44,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846687521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:44,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 13:17:44,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-10-11 13:17:44,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557433901] [2024-10-11 13:17:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:44,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 13:17:44,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:44,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 13:17:44,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:17:44,478 INFO L87 Difference]: Start difference. First operand 110 states and 145 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:44,730 INFO L93 Difference]: Finished difference Result 135 states and 177 transitions. [2024-10-11 13:17:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 13:17:44,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-11 13:17:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:44,732 INFO L225 Difference]: With dead ends: 135 [2024-10-11 13:17:44,733 INFO L226 Difference]: Without dead ends: 133 [2024-10-11 13:17:44,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-11 13:17:44,733 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:44,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 589 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:17:44,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-11 13:17:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-10-11 13:17:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-11 13:17:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 174 transitions. [2024-10-11 13:17:44,743 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 174 transitions. Word has length 150 [2024-10-11 13:17:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:44,744 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 174 transitions. [2024-10-11 13:17:44,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 174 transitions. [2024-10-11 13:17:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 13:17:44,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:44,746 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:44,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 13:17:44,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:17:44,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:44,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1876474813, now seen corresponding path program 1 times [2024-10-11 13:17:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:44,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938543279] [2024-10-11 13:17:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:45,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:45,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938543279] [2024-10-11 13:17:45,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938543279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:45,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:45,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 13:17:45,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089292418] [2024-10-11 13:17:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:45,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 13:17:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:45,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 13:17:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:45,227 INFO L87 Difference]: Start difference. First operand 132 states and 174 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:45,374 INFO L93 Difference]: Finished difference Result 288 states and 380 transitions. [2024-10-11 13:17:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:17:45,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-11 13:17:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:45,375 INFO L225 Difference]: With dead ends: 288 [2024-10-11 13:17:45,375 INFO L226 Difference]: Without dead ends: 173 [2024-10-11 13:17:45,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:45,377 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 94 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:45,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 519 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:17:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-11 13:17:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-10-11 13:17:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 117 states have internal predecessors, (132), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2024-10-11 13:17:45,404 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 150 [2024-10-11 13:17:45,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:45,405 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2024-10-11 13:17:45,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2024-10-11 13:17:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 13:17:45,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:45,406 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:45,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 13:17:45,406 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:45,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:45,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1819216511, now seen corresponding path program 1 times [2024-10-11 13:17:45,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781790798] [2024-10-11 13:17:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:45,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:45,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781790798] [2024-10-11 13:17:45,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781790798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:45,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:45,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 13:17:45,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338023083] [2024-10-11 13:17:45,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:45,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 13:17:45,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 13:17:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:45,628 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:45,682 INFO L93 Difference]: Finished difference Result 297 states and 389 transitions. [2024-10-11 13:17:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:17:45,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-11 13:17:45,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:45,684 INFO L225 Difference]: With dead ends: 297 [2024-10-11 13:17:45,684 INFO L226 Difference]: Without dead ends: 182 [2024-10-11 13:17:45,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:45,685 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 106 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:45,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 641 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-10-11 13:17:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 160. [2024-10-11 13:17:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 116 states have (on average 1.1293103448275863) internal successors, (131), 117 states have internal predecessors, (131), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:45,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 211 transitions. [2024-10-11 13:17:45,700 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 211 transitions. Word has length 150 [2024-10-11 13:17:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:45,700 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 211 transitions. [2024-10-11 13:17:45,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 211 transitions. [2024-10-11 13:17:45,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 13:17:45,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:45,702 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:45,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 13:17:45,702 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:45,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1666404159, now seen corresponding path program 1 times [2024-10-11 13:17:45,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:45,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125463348] [2024-10-11 13:17:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:45,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:45,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125463348] [2024-10-11 13:17:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125463348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:45,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 13:17:45,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591479537] [2024-10-11 13:17:45,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:45,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 13:17:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:45,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 13:17:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:45,847 INFO L87 Difference]: Start difference. First operand 160 states and 211 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:45,885 INFO L93 Difference]: Finished difference Result 278 states and 362 transitions. [2024-10-11 13:17:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:17:45,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-11 13:17:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:45,888 INFO L225 Difference]: With dead ends: 278 [2024-10-11 13:17:45,888 INFO L226 Difference]: Without dead ends: 163 [2024-10-11 13:17:45,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:17:45,889 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:45,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-11 13:17:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-10-11 13:17:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 119 states have (on average 1.1260504201680672) internal successors, (134), 120 states have internal predecessors, (134), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 214 transitions. [2024-10-11 13:17:45,905 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 214 transitions. Word has length 150 [2024-10-11 13:17:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 214 transitions. [2024-10-11 13:17:45,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 214 transitions. [2024-10-11 13:17:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 13:17:45,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:45,907 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:45,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 13:17:45,907 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:45,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1309994932, now seen corresponding path program 1 times [2024-10-11 13:17:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812945584] [2024-10-11 13:17:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:45,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:46,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812945584] [2024-10-11 13:17:46,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812945584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:46,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:46,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 13:17:46,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178285989] [2024-10-11 13:17:46,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:46,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 13:17:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 13:17:46,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:17:46,347 INFO L87 Difference]: Start difference. First operand 163 states and 214 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:46,553 INFO L93 Difference]: Finished difference Result 333 states and 427 transitions. [2024-10-11 13:17:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 13:17:46,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-10-11 13:17:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:46,555 INFO L225 Difference]: With dead ends: 333 [2024-10-11 13:17:46,555 INFO L226 Difference]: Without dead ends: 215 [2024-10-11 13:17:46,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-11 13:17:46,556 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 66 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:46,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 966 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:17:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-11 13:17:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 164. [2024-10-11 13:17:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 120 states have (on average 1.125) internal successors, (135), 121 states have internal predecessors, (135), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-11 13:17:46,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2024-10-11 13:17:46,573 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 151 [2024-10-11 13:17:46,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:46,574 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2024-10-11 13:17:46,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2024-10-11 13:17:46,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-11 13:17:46,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:46,575 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:46,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 13:17:46,576 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:46,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1769092070, now seen corresponding path program 1 times [2024-10-11 13:17:46,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:46,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742039084] [2024-10-11 13:17:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:46,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 13:17:46,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644815999] [2024-10-11 13:17:46,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:46,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:17:46,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:17:46,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:17:46,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 13:17:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:47,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-11 13:17:47,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 13:17:47,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-11 13:17:47,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-10-11 13:17:47,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-10-11 13:17:47,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 13:17:47,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 13:17:47,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 30 [2024-10-11 13:17:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-10-11 13:17:47,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 13:17:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:48,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:48,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742039084] [2024-10-11 13:17:48,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 13:17:48,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644815999] [2024-10-11 13:17:48,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644815999] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 13:17:48,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 13:17:48,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-11 13:17:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13707066] [2024-10-11 13:17:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:48,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 13:17:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:48,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 13:17:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:17:48,230 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:48,935 INFO L93 Difference]: Finished difference Result 362 states and 456 transitions. [2024-10-11 13:17:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:17:48,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-11 13:17:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:48,938 INFO L225 Difference]: With dead ends: 362 [2024-10-11 13:17:48,938 INFO L226 Difference]: Without dead ends: 243 [2024-10-11 13:17:48,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 13:17:48,939 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 88 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:48,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 286 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 13:17:48,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-10-11 13:17:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 154. [2024-10-11 13:17:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 131 states have (on average 1.1450381679389312) internal successors, (150), 131 states have internal predecessors, (150), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 190 transitions. [2024-10-11 13:17:48,957 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 190 transitions. Word has length 152 [2024-10-11 13:17:48,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:48,957 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 190 transitions. [2024-10-11 13:17:48,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-11 13:17:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 190 transitions. [2024-10-11 13:17:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-11 13:17:48,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:48,958 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:48,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 13:17:49,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:17:49,166 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:49,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:49,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1503709583, now seen corresponding path program 1 times [2024-10-11 13:17:49,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:49,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283303380] [2024-10-11 13:17:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:49,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:49,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283303380] [2024-10-11 13:17:49,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283303380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:49,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:49,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 13:17:49,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396437940] [2024-10-11 13:17:49,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:49,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 13:17:49,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:49,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 13:17:49,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:49,830 INFO L87 Difference]: Start difference. First operand 154 states and 190 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:49,969 INFO L93 Difference]: Finished difference Result 369 states and 450 transitions. [2024-10-11 13:17:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 13:17:49,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2024-10-11 13:17:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:49,971 INFO L225 Difference]: With dead ends: 369 [2024-10-11 13:17:49,971 INFO L226 Difference]: Without dead ends: 216 [2024-10-11 13:17:49,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 13:17:49,972 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 42 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:49,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 750 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:17:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-11 13:17:49,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2024-10-11 13:17:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.1446540880503144) internal successors, (182), 159 states have internal predecessors, (182), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 13:17:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 222 transitions. [2024-10-11 13:17:49,983 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 222 transitions. Word has length 153 [2024-10-11 13:17:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:49,984 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 222 transitions. [2024-10-11 13:17:49,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 222 transitions. [2024-10-11 13:17:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:49,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:49,985 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:49,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 13:17:49,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:49,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:49,986 INFO L85 PathProgramCache]: Analyzing trace with hash -277808769, now seen corresponding path program 1 times [2024-10-11 13:17:49,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:49,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712078168] [2024-10-11 13:17:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:49,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:51,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:51,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712078168] [2024-10-11 13:17:51,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712078168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:51,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:51,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 13:17:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672265644] [2024-10-11 13:17:51,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:51,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 13:17:51,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 13:17:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:17:51,429 INFO L87 Difference]: Start difference. First operand 182 states and 222 transitions. Second operand has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:52,522 INFO L93 Difference]: Finished difference Result 550 states and 671 transitions. [2024-10-11 13:17:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 13:17:52,522 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2024-10-11 13:17:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:52,524 INFO L225 Difference]: With dead ends: 550 [2024-10-11 13:17:52,524 INFO L226 Difference]: Without dead ends: 369 [2024-10-11 13:17:52,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-10-11 13:17:52,525 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:52,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1013 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 13:17:52,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-10-11 13:17:52,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 359. [2024-10-11 13:17:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 299 states have (on average 1.1137123745819397) internal successors, (333), 300 states have internal predecessors, (333), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-11 13:17:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 439 transitions. [2024-10-11 13:17:52,554 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 439 transitions. Word has length 154 [2024-10-11 13:17:52,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:52,554 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 439 transitions. [2024-10-11 13:17:52,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:52,554 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 439 transitions. [2024-10-11 13:17:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:52,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:52,555 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:52,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 13:17:52,556 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:52,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash -19643331, now seen corresponding path program 1 times [2024-10-11 13:17:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:52,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012394007] [2024-10-11 13:17:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:52,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:53,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012394007] [2024-10-11 13:17:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012394007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:53,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:53,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 13:17:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284388267] [2024-10-11 13:17:53,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:53,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 13:17:53,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 13:17:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:17:53,430 INFO L87 Difference]: Start difference. First operand 359 states and 439 transitions. Second operand has 8 states, 5 states have (on average 11.4) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-11 13:17:53,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:53,808 INFO L93 Difference]: Finished difference Result 833 states and 1015 transitions. [2024-10-11 13:17:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 13:17:53,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 11.4) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) Word has length 154 [2024-10-11 13:17:53,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:53,812 INFO L225 Difference]: With dead ends: 833 [2024-10-11 13:17:53,812 INFO L226 Difference]: Without dead ends: 475 [2024-10-11 13:17:53,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 13:17:53,814 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 78 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:53,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1033 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:17:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-10-11 13:17:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 471. [2024-10-11 13:17:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 389 states have (on average 1.1002570694087404) internal successors, (428), 391 states have internal predecessors, (428), 72 states have call successors, (72), 9 states have call predecessors, (72), 9 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-11 13:17:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 572 transitions. [2024-10-11 13:17:53,863 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 572 transitions. Word has length 154 [2024-10-11 13:17:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:53,863 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 572 transitions. [2024-10-11 13:17:53,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 11.4) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-11 13:17:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 572 transitions. [2024-10-11 13:17:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:53,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:53,864 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:53,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 13:17:53,865 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:53,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1108394625, now seen corresponding path program 1 times [2024-10-11 13:17:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:53,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780410058] [2024-10-11 13:17:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:53,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:54,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780410058] [2024-10-11 13:17:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780410058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 13:17:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570858723] [2024-10-11 13:17:54,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:54,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 13:17:54,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:54,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 13:17:54,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:54,575 INFO L87 Difference]: Start difference. First operand 471 states and 572 transitions. Second operand has 7 states, 5 states have (on average 11.4) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:54,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:54,870 INFO L93 Difference]: Finished difference Result 1053 states and 1283 transitions. [2024-10-11 13:17:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 13:17:54,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.4) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2024-10-11 13:17:54,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:54,875 INFO L225 Difference]: With dead ends: 1053 [2024-10-11 13:17:54,875 INFO L226 Difference]: Without dead ends: 583 [2024-10-11 13:17:54,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 13:17:54,876 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 78 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:54,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 625 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:17:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-10-11 13:17:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 517. [2024-10-11 13:17:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 417 states have (on average 1.0863309352517985) internal successors, (453), 420 states have internal predecessors, (453), 88 states have call successors, (88), 11 states have call predecessors, (88), 11 states have return successors, (88), 85 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-11 13:17:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 629 transitions. [2024-10-11 13:17:54,928 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 629 transitions. Word has length 154 [2024-10-11 13:17:54,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:54,928 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 629 transitions. [2024-10-11 13:17:54,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.4) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 629 transitions. [2024-10-11 13:17:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:54,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:54,930 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:54,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 13:17:54,930 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:54,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:54,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1366560063, now seen corresponding path program 1 times [2024-10-11 13:17:54,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:54,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638325759] [2024-10-11 13:17:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:54,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:56,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638325759] [2024-10-11 13:17:56,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638325759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:56,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:56,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 13:17:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400980382] [2024-10-11 13:17:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:56,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 13:17:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 13:17:56,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:17:56,043 INFO L87 Difference]: Start difference. First operand 517 states and 629 transitions. Second operand has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:56,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:56,973 INFO L93 Difference]: Finished difference Result 1067 states and 1303 transitions. [2024-10-11 13:17:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 13:17:56,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2024-10-11 13:17:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:56,976 INFO L225 Difference]: With dead ends: 1067 [2024-10-11 13:17:56,976 INFO L226 Difference]: Without dead ends: 551 [2024-10-11 13:17:56,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-10-11 13:17:56,977 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 111 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:56,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 959 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 13:17:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-10-11 13:17:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 542. [2024-10-11 13:17:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 427 states have (on average 1.079625292740047) internal successors, (461), 431 states have internal predecessors, (461), 101 states have call successors, (101), 13 states have call predecessors, (101), 13 states have return successors, (101), 97 states have call predecessors, (101), 101 states have call successors, (101) [2024-10-11 13:17:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 663 transitions. [2024-10-11 13:17:57,049 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 663 transitions. Word has length 154 [2024-10-11 13:17:57,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:57,049 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 663 transitions. [2024-10-11 13:17:57,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:17:57,050 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 663 transitions. [2024-10-11 13:17:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:57,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:57,051 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:57,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 13:17:57,052 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:57,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:57,052 INFO L85 PathProgramCache]: Analyzing trace with hash 467666355, now seen corresponding path program 1 times [2024-10-11 13:17:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190480769] [2024-10-11 13:17:57,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:57,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:57,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190480769] [2024-10-11 13:17:57,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190480769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:57,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:57,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 13:17:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510585572] [2024-10-11 13:17:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:57,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 13:17:57,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:57,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 13:17:57,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 13:17:57,272 INFO L87 Difference]: Start difference. First operand 542 states and 663 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:57,590 INFO L93 Difference]: Finished difference Result 1229 states and 1480 transitions. [2024-10-11 13:17:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 13:17:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-11 13:17:57,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:57,594 INFO L225 Difference]: With dead ends: 1229 [2024-10-11 13:17:57,594 INFO L226 Difference]: Without dead ends: 940 [2024-10-11 13:17:57,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:17:57,596 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 246 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:57,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 360 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:17:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-10-11 13:17:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 725. [2024-10-11 13:17:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 581 states have (on average 1.0877796901893289) internal successors, (632), 584 states have internal predecessors, (632), 128 states have call successors, (128), 15 states have call predecessors, (128), 15 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-11 13:17:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 888 transitions. [2024-10-11 13:17:57,664 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 888 transitions. Word has length 154 [2024-10-11 13:17:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:57,664 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 888 transitions. [2024-10-11 13:17:57,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 888 transitions. [2024-10-11 13:17:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-11 13:17:57,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:57,666 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:57,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 13:17:57,666 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:57,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:57,667 INFO L85 PathProgramCache]: Analyzing trace with hash -789565069, now seen corresponding path program 1 times [2024-10-11 13:17:57,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:57,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213813498] [2024-10-11 13:17:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:57,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:58,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:58,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213813498] [2024-10-11 13:17:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213813498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:58,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 13:17:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528501771] [2024-10-11 13:17:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:58,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 13:17:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 13:17:58,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:17:58,237 INFO L87 Difference]: Start difference. First operand 725 states and 888 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:58,566 INFO L93 Difference]: Finished difference Result 1270 states and 1548 transitions. [2024-10-11 13:17:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 13:17:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-11 13:17:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:58,571 INFO L225 Difference]: With dead ends: 1270 [2024-10-11 13:17:58,571 INFO L226 Difference]: Without dead ends: 830 [2024-10-11 13:17:58,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-11 13:17:58,572 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 60 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:58,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1174 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:17:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-11 13:17:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 691. [2024-10-11 13:17:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 547 states have (on average 1.0822669104204754) internal successors, (592), 550 states have internal predecessors, (592), 128 states have call successors, (128), 15 states have call predecessors, (128), 15 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-11 13:17:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 848 transitions. [2024-10-11 13:17:58,680 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 848 transitions. Word has length 154 [2024-10-11 13:17:58,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:58,680 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 848 transitions. [2024-10-11 13:17:58,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 848 transitions. [2024-10-11 13:17:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-11 13:17:58,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:58,682 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:58,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 13:17:58,682 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:58,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1635024008, now seen corresponding path program 1 times [2024-10-11 13:17:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:58,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539777484] [2024-10-11 13:17:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:17:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:17:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:17:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:17:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:17:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:17:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:17:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:17:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:17:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:17:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:17:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:17:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:17:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:17:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:17:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:17:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:17:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:17:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:17:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:17:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:17:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:17:58,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:17:58,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539777484] [2024-10-11 13:17:58,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539777484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:17:58,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:17:58,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 13:17:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747315351] [2024-10-11 13:17:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:17:58,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 13:17:58,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:17:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 13:17:58,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 13:17:58,948 INFO L87 Difference]: Start difference. First operand 691 states and 848 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:17:59,055 INFO L93 Difference]: Finished difference Result 1160 states and 1407 transitions. [2024-10-11 13:17:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 13:17:59,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-11 13:17:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:17:59,059 INFO L225 Difference]: With dead ends: 1160 [2024-10-11 13:17:59,059 INFO L226 Difference]: Without dead ends: 754 [2024-10-11 13:17:59,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 13:17:59,061 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 36 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:17:59,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 649 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:17:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-11 13:17:59,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 691. [2024-10-11 13:17:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 547 states have (on average 1.0639853747714807) internal successors, (582), 550 states have internal predecessors, (582), 128 states have call successors, (128), 15 states have call predecessors, (128), 15 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-11 13:17:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 838 transitions. [2024-10-11 13:17:59,123 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 838 transitions. Word has length 155 [2024-10-11 13:17:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:17:59,123 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 838 transitions. [2024-10-11 13:17:59,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 13:17:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 838 transitions. [2024-10-11 13:17:59,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-11 13:17:59,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:17:59,124 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:17:59,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 13:17:59,125 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:17:59,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:17:59,125 INFO L85 PathProgramCache]: Analyzing trace with hash -513132806, now seen corresponding path program 1 times [2024-10-11 13:17:59,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:17:59,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643165974] [2024-10-11 13:17:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:17:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:17:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:18:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 13:18:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 13:18:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 13:18:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 13:18:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 13:18:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 13:18:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 13:18:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 13:18:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 13:18:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:18:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:18:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 13:18:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 13:18:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 13:18:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:18:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:18:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 13:18:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 13:18:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 13:18:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:18:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-11 13:18:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:18:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643165974] [2024-10-11 13:18:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643165974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:18:01,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:18:01,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 13:18:01,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098456047] [2024-10-11 13:18:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:18:01,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 13:18:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:18:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 13:18:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-11 13:18:01,072 INFO L87 Difference]: Start difference. First operand 691 states and 838 transitions. Second operand has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:18:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:18:02,302 INFO L93 Difference]: Finished difference Result 1133 states and 1366 transitions. [2024-10-11 13:18:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 13:18:02,303 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-10-11 13:18:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:18:02,307 INFO L225 Difference]: With dead ends: 1133 [2024-10-11 13:18:02,307 INFO L226 Difference]: Without dead ends: 866 [2024-10-11 13:18:02,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-10-11 13:18:02,309 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 166 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 13:18:02,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1882 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 13:18:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-11 13:18:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 741. [2024-10-11 13:18:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 582 states have (on average 1.0618556701030928) internal successors, (618), 586 states have internal predecessors, (618), 141 states have call successors, (141), 17 states have call predecessors, (141), 17 states have return successors, (141), 137 states have call predecessors, (141), 141 states have call successors, (141) [2024-10-11 13:18:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 900 transitions. [2024-10-11 13:18:02,427 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 900 transitions. Word has length 157 [2024-10-11 13:18:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:18:02,429 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 900 transitions. [2024-10-11 13:18:02,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.285714285714286) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-11 13:18:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 900 transitions. [2024-10-11 13:18:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-11 13:18:02,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:18:02,431 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:18:02,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 13:18:02,431 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:18:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:18:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 446632506, now seen corresponding path program 1 times [2024-10-11 13:18:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:18:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845941032] [2024-10-11 13:18:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:18:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:18:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat