./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 04:19:56,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 04:19:56,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 04:19:56,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 04:19:56,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 04:19:56,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 04:19:56,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 04:19:56,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 04:19:56,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 04:19:56,122 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 04:19:56,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 04:19:56,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 04:19:56,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 04:19:56,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 04:19:56,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:19:56,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 04:19:56,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 04:19:56,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 04:19:56,127 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba [2024-11-07 04:19:56,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 04:19:56,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 04:19:56,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 04:19:56,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 04:19:56,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 04:19:56,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-07 04:19:57,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 04:19:57,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 04:19:57,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-07 04:19:57,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c60c4f4c/70b7eb09d0634dc48325c6c1f78be7f1/FLAG2f7a15b55 [2024-11-07 04:19:57,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c60c4f4c/70b7eb09d0634dc48325c6c1f78be7f1 [2024-11-07 04:19:57,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 04:19:57,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 04:19:57,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 04:19:57,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 04:19:57,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 04:19:57,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:57" (1/1) ... [2024-11-07 04:19:57,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:57, skipping insertion in model container [2024-11-07 04:19:57,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:57" (1/1) ... [2024-11-07 04:19:58,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 04:19:58,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i[917,930] [2024-11-07 04:19:58,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:19:58,236 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 04:19:58,246 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i[917,930] [2024-11-07 04:19:58,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:19:58,296 INFO L204 MainTranslator]: Completed translation [2024-11-07 04:19:58,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58 WrapperNode [2024-11-07 04:19:58,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 04:19:58,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 04:19:58,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 04:19:58,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 04:19:58,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,374 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2024-11-07 04:19:58,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 04:19:58,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 04:19:58,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 04:19:58,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 04:19:58,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,422 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 04:19:58,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 04:19:58,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 04:19:58,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 04:19:58,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 04:19:58,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (1/1) ... [2024-11-07 04:19:58,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:19:58,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 04:19:58,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 04:19:58,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 04:19:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 04:19:58,510 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 04:19:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 04:19:58,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 04:19:58,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 04:19:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 04:19:58,585 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 04:19:58,587 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 04:19:58,964 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-07 04:19:58,965 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 04:19:58,976 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 04:19:58,977 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 04:19:58,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:58 BoogieIcfgContainer [2024-11-07 04:19:58,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 04:19:58,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 04:19:58,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 04:19:58,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 04:19:58,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:19:57" (1/3) ... [2024-11-07 04:19:58,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:58, skipping insertion in model container [2024-11-07 04:19:58,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:58" (2/3) ... [2024-11-07 04:19:58,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:58, skipping insertion in model container [2024-11-07 04:19:58,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:58" (3/3) ... [2024-11-07 04:19:58,989 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-34.i [2024-11-07 04:19:59,000 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 04:19:59,001 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 04:19:59,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 04:19:59,050 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;@1c75d1c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 04:19:59,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 04:19:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:19:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 04:19:59,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:19:59,071 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:19:59,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:19:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:19:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2122244211, now seen corresponding path program 1 times [2024-11-07 04:19:59,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:19:59,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206788613] [2024-11-07 04:19:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:19:59,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:19:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:19:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:19:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:19:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:19:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:19:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:19:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:19:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:19:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:19:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:19:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:19:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:19:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:19:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:19:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:19:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:19:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:19:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:19:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:19:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:19:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:19:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:19:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:19:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:19:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:19:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:19:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:19:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:19:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:19:59,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:19:59,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206788613] [2024-11-07 04:19:59,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206788613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:19:59,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:19:59,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 04:19:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477976184] [2024-11-07 04:19:59,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:19:59,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 04:19:59,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:19:59,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 04:19:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 04:19:59,689 INFO L87 Difference]: Start difference. First operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:19:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:19:59,764 INFO L93 Difference]: Finished difference Result 222 states and 375 transitions. [2024-11-07 04:19:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 04:19:59,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-07 04:19:59,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:19:59,775 INFO L225 Difference]: With dead ends: 222 [2024-11-07 04:19:59,775 INFO L226 Difference]: Without dead ends: 131 [2024-11-07 04:19:59,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 04:19:59,783 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 55 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 04:19:59,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 268 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 04:19:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-07 04:19:59,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96. [2024-11-07 04:19:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:19:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 147 transitions. [2024-11-07 04:19:59,825 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 147 transitions. Word has length 173 [2024-11-07 04:19:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:19:59,829 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 147 transitions. [2024-11-07 04:19:59,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:19:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 147 transitions. [2024-11-07 04:19:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 04:19:59,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:19:59,832 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:19:59,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 04:19:59,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:19:59,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:19:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash 842380533, now seen corresponding path program 1 times [2024-11-07 04:19:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:19:59,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911602776] [2024-11-07 04:19:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:19:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:01,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:01,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911602776] [2024-11-07 04:20:01,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911602776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:01,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:01,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 04:20:01,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187416158] [2024-11-07 04:20:01,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:01,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 04:20:01,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:01,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 04:20:01,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-07 04:20:01,707 INFO L87 Difference]: Start difference. First operand 96 states and 147 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:02,108 INFO L93 Difference]: Finished difference Result 298 states and 449 transitions. [2024-11-07 04:20:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 04:20:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-07 04:20:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:02,111 INFO L225 Difference]: With dead ends: 298 [2024-11-07 04:20:02,111 INFO L226 Difference]: Without dead ends: 205 [2024-11-07 04:20:02,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:02,113 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 277 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:02,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 425 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 04:20:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-07 04:20:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 117. [2024-11-07 04:20:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.4204545454545454) internal successors, (125), 88 states have internal predecessors, (125), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 179 transitions. [2024-11-07 04:20:02,139 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 179 transitions. Word has length 173 [2024-11-07 04:20:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:02,140 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 179 transitions. [2024-11-07 04:20:02,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 179 transitions. [2024-11-07 04:20:02,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 04:20:02,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:02,145 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:02,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 04:20:02,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:02,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:02,147 INFO L85 PathProgramCache]: Analyzing trace with hash -178687821, now seen corresponding path program 1 times [2024-11-07 04:20:02,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:02,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174910880] [2024-11-07 04:20:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:02,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:05,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:05,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174910880] [2024-11-07 04:20:05,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174910880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:05,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 04:20:05,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185306687] [2024-11-07 04:20:05,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:05,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 04:20:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 04:20:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-07 04:20:05,998 INFO L87 Difference]: Start difference. First operand 117 states and 179 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:08,815 INFO L93 Difference]: Finished difference Result 433 states and 656 transitions. [2024-11-07 04:20:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 04:20:08,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-07 04:20:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:08,823 INFO L225 Difference]: With dead ends: 433 [2024-11-07 04:20:08,824 INFO L226 Difference]: Without dead ends: 319 [2024-11-07 04:20:08,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-07 04:20:08,830 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 504 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:08,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 696 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 04:20:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-07 04:20:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 252. [2024-11-07 04:20:08,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 195 states have (on average 1.4256410256410257) internal successors, (278), 195 states have internal predecessors, (278), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 04:20:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 386 transitions. [2024-11-07 04:20:08,875 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 386 transitions. Word has length 173 [2024-11-07 04:20:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:08,876 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 386 transitions. [2024-11-07 04:20:08,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 386 transitions. [2024-11-07 04:20:08,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 04:20:08,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:08,882 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:08,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 04:20:08,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:08,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash -988034447, now seen corresponding path program 1 times [2024-11-07 04:20:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:08,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653807258] [2024-11-07 04:20:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:08,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:10,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:10,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653807258] [2024-11-07 04:20:10,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653807258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:10,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:10,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 04:20:10,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767474165] [2024-11-07 04:20:10,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:10,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 04:20:10,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:10,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 04:20:10,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:10,232 INFO L87 Difference]: Start difference. First operand 252 states and 386 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:11,414 INFO L93 Difference]: Finished difference Result 614 states and 932 transitions. [2024-11-07 04:20:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 04:20:11,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-07 04:20:11,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:11,417 INFO L225 Difference]: With dead ends: 614 [2024-11-07 04:20:11,417 INFO L226 Difference]: Without dead ends: 365 [2024-11-07 04:20:11,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-07 04:20:11,421 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 132 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:11,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 594 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 04:20:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-07 04:20:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 142. [2024-11-07 04:20:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 113 states have (on average 1.424778761061947) internal successors, (161), 113 states have internal predecessors, (161), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 215 transitions. [2024-11-07 04:20:11,449 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 215 transitions. Word has length 173 [2024-11-07 04:20:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:11,449 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 215 transitions. [2024-11-07 04:20:11,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-07 04:20:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:11,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:11,451 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:11,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 04:20:11,452 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:11,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash 921830182, now seen corresponding path program 1 times [2024-11-07 04:20:11,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:11,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809532822] [2024-11-07 04:20:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:11,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:13,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:13,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809532822] [2024-11-07 04:20:13,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809532822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:13,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 04:20:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783615245] [2024-11-07 04:20:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:13,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 04:20:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 04:20:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-07 04:20:13,550 INFO L87 Difference]: Start difference. First operand 142 states and 215 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:14,881 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2024-11-07 04:20:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 04:20:14,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:14,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:14,886 INFO L225 Difference]: With dead ends: 411 [2024-11-07 04:20:14,886 INFO L226 Difference]: Without dead ends: 272 [2024-11-07 04:20:14,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 04:20:14,888 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 371 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:14,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 497 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 04:20:14,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-07 04:20:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 158. [2024-11-07 04:20:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-07 04:20:14,898 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-07 04:20:14,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:14,898 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-07 04:20:14,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-07 04:20:14,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:14,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:14,900 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:14,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 04:20:14,901 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:14,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash 112483556, now seen corresponding path program 1 times [2024-11-07 04:20:14,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:14,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532123905] [2024-11-07 04:20:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:14,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532123905] [2024-11-07 04:20:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532123905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 04:20:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983354516] [2024-11-07 04:20:16,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:16,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 04:20:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:16,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 04:20:16,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:16,914 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:18,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:18,552 INFO L93 Difference]: Finished difference Result 469 states and 697 transitions. [2024-11-07 04:20:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 04:20:18,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:18,556 INFO L225 Difference]: With dead ends: 469 [2024-11-07 04:20:18,556 INFO L226 Difference]: Without dead ends: 314 [2024-11-07 04:20:18,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-07 04:20:18,558 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 423 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:18,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 533 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 04:20:18,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-07 04:20:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 144. [2024-11-07 04:20:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.4260869565217391) internal successors, (164), 115 states have internal predecessors, (164), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 218 transitions. [2024-11-07 04:20:18,574 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 218 transitions. Word has length 174 [2024-11-07 04:20:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:18,575 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 218 transitions. [2024-11-07 04:20:18,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 218 transitions. [2024-11-07 04:20:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:18,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:18,577 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:18,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 04:20:18,577 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:18,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:18,577 INFO L85 PathProgramCache]: Analyzing trace with hash -99238172, now seen corresponding path program 1 times [2024-11-07 04:20:18,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:18,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757327990] [2024-11-07 04:20:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:18,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:20,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:20,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757327990] [2024-11-07 04:20:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757327990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:20,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 04:20:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614280466] [2024-11-07 04:20:20,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:20,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 04:20:20,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:20,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 04:20:20,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-07 04:20:20,400 INFO L87 Difference]: Start difference. First operand 144 states and 218 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:21,337 INFO L93 Difference]: Finished difference Result 400 states and 598 transitions. [2024-11-07 04:20:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 04:20:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:21,339 INFO L225 Difference]: With dead ends: 400 [2024-11-07 04:20:21,339 INFO L226 Difference]: Without dead ends: 259 [2024-11-07 04:20:21,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-07 04:20:21,340 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 263 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:21,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 494 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 04:20:21,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-07 04:20:21,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 158. [2024-11-07 04:20:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-07 04:20:21,349 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-07 04:20:21,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:21,350 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-07 04:20:21,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:21,350 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-07 04:20:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:21,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:21,352 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:21,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 04:20:21,352 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:21,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash -908584798, now seen corresponding path program 1 times [2024-11-07 04:20:21,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:21,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120938099] [2024-11-07 04:20:21,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:21,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:24,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:24,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120938099] [2024-11-07 04:20:24,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120938099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:24,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:24,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 04:20:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733156574] [2024-11-07 04:20:24,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:24,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 04:20:24,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 04:20:24,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-07 04:20:24,158 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:26,125 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-11-07 04:20:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 04:20:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:26,129 INFO L225 Difference]: With dead ends: 565 [2024-11-07 04:20:26,129 INFO L226 Difference]: Without dead ends: 410 [2024-11-07 04:20:26,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 04:20:26,130 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 413 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:26,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 727 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 04:20:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-07 04:20:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2024-11-07 04:20:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 127 states have internal predecessors, (184), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 04:20:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions. [2024-11-07 04:20:26,139 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 174 [2024-11-07 04:20:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:26,139 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 238 transitions. [2024-11-07 04:20:26,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2024-11-07 04:20:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:26,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:26,141 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:26,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 04:20:26,141 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:26,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1072314524, now seen corresponding path program 1 times [2024-11-07 04:20:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:26,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795315495] [2024-11-07 04:20:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795315495] [2024-11-07 04:20:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795315495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 04:20:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665211469] [2024-11-07 04:20:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:26,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 04:20:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 04:20:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 04:20:26,399 INFO L87 Difference]: Start difference. First operand 156 states and 238 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:26,691 INFO L93 Difference]: Finished difference Result 360 states and 547 transitions. [2024-11-07 04:20:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 04:20:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:26,694 INFO L225 Difference]: With dead ends: 360 [2024-11-07 04:20:26,694 INFO L226 Difference]: Without dead ends: 207 [2024-11-07 04:20:26,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:26,695 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 71 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:26,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 629 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 04:20:26,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-07 04:20:26,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-11-07 04:20:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 170 states have (on average 1.4529411764705882) internal successors, (247), 171 states have internal predecessors, (247), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 04:20:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 309 transitions. [2024-11-07 04:20:26,711 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 309 transitions. Word has length 174 [2024-11-07 04:20:26,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:26,712 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 309 transitions. [2024-11-07 04:20:26,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 309 transitions. [2024-11-07 04:20:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:26,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:26,717 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:26,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 04:20:26,717 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:26,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash -371249946, now seen corresponding path program 1 times [2024-11-07 04:20:26,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:26,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155848144] [2024-11-07 04:20:26,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:26,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:26,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155848144] [2024-11-07 04:20:26,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155848144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:26,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:26,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 04:20:26,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199929452] [2024-11-07 04:20:26,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:26,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 04:20:26,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:26,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 04:20:26,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 04:20:26,916 INFO L87 Difference]: Start difference. First operand 204 states and 309 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:27,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:27,099 INFO L93 Difference]: Finished difference Result 406 states and 615 transitions. [2024-11-07 04:20:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 04:20:27,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:27,102 INFO L225 Difference]: With dead ends: 406 [2024-11-07 04:20:27,102 INFO L226 Difference]: Without dead ends: 205 [2024-11-07 04:20:27,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 04:20:27,104 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 68 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:27,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 373 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 04:20:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-07 04:20:27,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2024-11-07 04:20:27,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 168 states have (on average 1.4523809523809523) internal successors, (244), 169 states have internal predecessors, (244), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 04:20:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 306 transitions. [2024-11-07 04:20:27,115 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 306 transitions. Word has length 174 [2024-11-07 04:20:27,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:27,116 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 306 transitions. [2024-11-07 04:20:27,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 306 transitions. [2024-11-07 04:20:27,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:27,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:27,118 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:27,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 04:20:27,119 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:27,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash 103061529, now seen corresponding path program 1 times [2024-11-07 04:20:27,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:27,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176488234] [2024-11-07 04:20:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:27,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:27,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176488234] [2024-11-07 04:20:27,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176488234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:27,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:27,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 04:20:27,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675254128] [2024-11-07 04:20:27,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:27,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 04:20:27,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:27,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 04:20:27,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 04:20:27,598 INFO L87 Difference]: Start difference. First operand 202 states and 306 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:27,890 INFO L93 Difference]: Finished difference Result 604 states and 909 transitions. [2024-11-07 04:20:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 04:20:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:27,895 INFO L225 Difference]: With dead ends: 604 [2024-11-07 04:20:27,895 INFO L226 Difference]: Without dead ends: 405 [2024-11-07 04:20:27,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-07 04:20:27,897 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 283 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:27,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 518 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 04:20:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-07 04:20:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 230. [2024-11-07 04:20:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 04:20:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-07 04:20:27,915 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-07 04:20:27,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:27,918 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-07 04:20:27,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-07 04:20:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:27,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:27,919 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:27,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 04:20:27,920 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:27,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash -918006825, now seen corresponding path program 1 times [2024-11-07 04:20:27,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:27,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895990942] [2024-11-07 04:20:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:28,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:28,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895990942] [2024-11-07 04:20:28,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895990942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:28,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:28,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 04:20:28,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385993611] [2024-11-07 04:20:28,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:28,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 04:20:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:28,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 04:20:28,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-07 04:20:28,435 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:29,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:29,009 INFO L93 Difference]: Finished difference Result 602 states and 900 transitions. [2024-11-07 04:20:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 04:20:29,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:29,013 INFO L225 Difference]: With dead ends: 602 [2024-11-07 04:20:29,013 INFO L226 Difference]: Without dead ends: 375 [2024-11-07 04:20:29,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:29,014 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 107 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:29,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 766 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 04:20:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-07 04:20:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 230. [2024-11-07 04:20:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 04:20:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-07 04:20:29,032 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-07 04:20:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:29,032 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-07 04:20:29,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-07 04:20:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:29,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:29,034 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:29,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 04:20:29,034 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:29,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash 920709979, now seen corresponding path program 1 times [2024-11-07 04:20:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:29,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803632281] [2024-11-07 04:20:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803632281] [2024-11-07 04:20:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803632281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 04:20:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983137973] [2024-11-07 04:20:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 04:20:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:30,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 04:20:30,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:30,118 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:30,672 INFO L93 Difference]: Finished difference Result 672 states and 1002 transitions. [2024-11-07 04:20:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 04:20:30,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:30,675 INFO L225 Difference]: With dead ends: 672 [2024-11-07 04:20:30,675 INFO L226 Difference]: Without dead ends: 445 [2024-11-07 04:20:30,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-07 04:20:30,676 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 405 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:30,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 481 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 04:20:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-07 04:20:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 232. [2024-11-07 04:20:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 198 states have (on average 1.4494949494949494) internal successors, (287), 199 states have internal predecessors, (287), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 04:20:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-11-07 04:20:30,688 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 174 [2024-11-07 04:20:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:30,688 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-11-07 04:20:30,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-11-07 04:20:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:30,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:30,690 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:30,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 04:20:30,691 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:30,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash -100358375, now seen corresponding path program 1 times [2024-11-07 04:20:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646236500] [2024-11-07 04:20:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:33,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:33,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646236500] [2024-11-07 04:20:33,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646236500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 04:20:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063437936] [2024-11-07 04:20:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:33,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 04:20:33,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 04:20:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-07 04:20:33,443 INFO L87 Difference]: Start difference. First operand 232 states and 349 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:38,305 INFO L93 Difference]: Finished difference Result 919 states and 1354 transitions. [2024-11-07 04:20:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 04:20:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 04:20:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:38,309 INFO L225 Difference]: With dead ends: 919 [2024-11-07 04:20:38,309 INFO L226 Difference]: Without dead ends: 690 [2024-11-07 04:20:38,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-07 04:20:38,311 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 732 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:38,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 787 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-07 04:20:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-07 04:20:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 380. [2024-11-07 04:20:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 313 states have (on average 1.4313099041533546) internal successors, (448), 315 states have internal predecessors, (448), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-07 04:20:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 572 transitions. [2024-11-07 04:20:38,333 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 572 transitions. Word has length 174 [2024-11-07 04:20:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:38,333 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 572 transitions. [2024-11-07 04:20:38,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 572 transitions. [2024-11-07 04:20:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 04:20:38,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:38,335 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:38,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 04:20:38,336 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:38,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:38,336 INFO L85 PathProgramCache]: Analyzing trace with hash -909705001, now seen corresponding path program 1 times [2024-11-07 04:20:38,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:38,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206800005] [2024-11-07 04:20:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:42,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:42,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206800005] [2024-11-07 04:20:42,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206800005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:42,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:42,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 04:20:42,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437419620] [2024-11-07 04:20:42,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:42,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 04:20:42,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:42,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 04:20:42,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-07 04:20:42,347 INFO L87 Difference]: Start difference. First operand 380 states and 572 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 04:20:46,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:46,718 INFO L93 Difference]: Finished difference Result 889 states and 1331 transitions. [2024-11-07 04:20:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 04:20:46,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-07 04:20:46,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:46,722 INFO L225 Difference]: With dead ends: 889 [2024-11-07 04:20:46,722 INFO L226 Difference]: Without dead ends: 523 [2024-11-07 04:20:46,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2024-11-07 04:20:46,724 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 451 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:46,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1013 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 04:20:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-07 04:20:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 382. [2024-11-07 04:20:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 315 states have (on average 1.4253968253968254) internal successors, (449), 317 states have internal predecessors, (449), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-07 04:20:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 573 transitions. [2024-11-07 04:20:46,743 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 573 transitions. Word has length 174 [2024-11-07 04:20:46,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:46,744 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 573 transitions. [2024-11-07 04:20:46,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 04:20:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 573 transitions. [2024-11-07 04:20:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:46,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:46,746 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:46,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 04:20:46,746 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:46,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1960065966, now seen corresponding path program 1 times [2024-11-07 04:20:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:46,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236549518] [2024-11-07 04:20:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:46,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:46,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:46,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236549518] [2024-11-07 04:20:46,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236549518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:46,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:46,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 04:20:46,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751878897] [2024-11-07 04:20:46,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:46,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 04:20:46,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:46,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 04:20:46,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 04:20:46,854 INFO L87 Difference]: Start difference. First operand 382 states and 573 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:46,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:46,961 INFO L93 Difference]: Finished difference Result 920 states and 1385 transitions. [2024-11-07 04:20:46,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 04:20:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:20:46,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:46,965 INFO L225 Difference]: With dead ends: 920 [2024-11-07 04:20:46,965 INFO L226 Difference]: Without dead ends: 552 [2024-11-07 04:20:46,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 04:20:46,967 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:46,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 383 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 04:20:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-07 04:20:46,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 497. [2024-11-07 04:20:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 399 states have (on average 1.3934837092731829) internal successors, (556), 404 states have internal predecessors, (556), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:20:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 736 transitions. [2024-11-07 04:20:47,001 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 736 transitions. Word has length 175 [2024-11-07 04:20:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:47,001 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 736 transitions. [2024-11-07 04:20:47,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 736 transitions. [2024-11-07 04:20:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:47,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:47,003 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:47,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 04:20:47,003 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:47,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1251315180, now seen corresponding path program 1 times [2024-11-07 04:20:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:47,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048650912] [2024-11-07 04:20:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:47,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:47,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048650912] [2024-11-07 04:20:47,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048650912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:47,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:47,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 04:20:47,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232721816] [2024-11-07 04:20:47,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:47,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 04:20:47,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:47,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 04:20:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 04:20:47,147 INFO L87 Difference]: Start difference. First operand 497 states and 736 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:47,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:47,262 INFO L93 Difference]: Finished difference Result 820 states and 1211 transitions. [2024-11-07 04:20:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 04:20:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:20:47,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:47,266 INFO L225 Difference]: With dead ends: 820 [2024-11-07 04:20:47,266 INFO L226 Difference]: Without dead ends: 502 [2024-11-07 04:20:47,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 04:20:47,268 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 66 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:47,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 398 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 04:20:47,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-07 04:20:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 495. [2024-11-07 04:20:47,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 397 states have (on average 1.3904282115869018) internal successors, (552), 402 states have internal predecessors, (552), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:20:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 732 transitions. [2024-11-07 04:20:47,295 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 732 transitions. Word has length 175 [2024-11-07 04:20:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:47,295 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 732 transitions. [2024-11-07 04:20:47,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 732 transitions. [2024-11-07 04:20:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:47,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:47,297 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:47,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 04:20:47,297 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:47,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash -686128964, now seen corresponding path program 1 times [2024-11-07 04:20:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136541928] [2024-11-07 04:20:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:49,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:49,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136541928] [2024-11-07 04:20:49,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136541928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:49,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:49,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 04:20:49,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918665207] [2024-11-07 04:20:49,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:49,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 04:20:49,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:49,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 04:20:49,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-07 04:20:49,865 INFO L87 Difference]: Start difference. First operand 495 states and 732 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:52,914 INFO L93 Difference]: Finished difference Result 1269 states and 1837 transitions. [2024-11-07 04:20:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 04:20:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:20:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:52,919 INFO L225 Difference]: With dead ends: 1269 [2024-11-07 04:20:52,919 INFO L226 Difference]: Without dead ends: 953 [2024-11-07 04:20:52,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-07 04:20:52,921 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 602 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:52,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 922 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 04:20:52,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-07 04:20:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 504. [2024-11-07 04:20:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 406 states have (on average 1.3891625615763548) internal successors, (564), 411 states have internal predecessors, (564), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:20:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 744 transitions. [2024-11-07 04:20:52,950 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 744 transitions. Word has length 175 [2024-11-07 04:20:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:52,950 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 744 transitions. [2024-11-07 04:20:52,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 744 transitions. [2024-11-07 04:20:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:52,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:52,952 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 04:20:52,953 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:52,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:52,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1495475590, now seen corresponding path program 1 times [2024-11-07 04:20:52,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:52,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837563586] [2024-11-07 04:20:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:54,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837563586] [2024-11-07 04:20:54,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837563586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:54,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:54,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 04:20:54,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726238774] [2024-11-07 04:20:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:54,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 04:20:54,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:54,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 04:20:54,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 04:20:54,448 INFO L87 Difference]: Start difference. First operand 504 states and 744 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:55,469 INFO L93 Difference]: Finished difference Result 1184 states and 1728 transitions. [2024-11-07 04:20:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 04:20:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:20:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:55,475 INFO L225 Difference]: With dead ends: 1184 [2024-11-07 04:20:55,475 INFO L226 Difference]: Without dead ends: 859 [2024-11-07 04:20:55,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-07 04:20:55,477 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 286 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:55,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 809 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 04:20:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-07 04:20:55,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 476. [2024-11-07 04:20:55,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:20:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-07 04:20:55,510 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-07 04:20:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:55,510 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-07 04:20:55,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-07 04:20:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:55,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:55,514 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:55,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 04:20:55,514 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:55,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:55,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1707197318, now seen corresponding path program 1 times [2024-11-07 04:20:55,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:55,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471247605] [2024-11-07 04:20:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:55,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:20:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:20:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:20:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:20:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:20:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:20:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:20:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:20:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:20:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:20:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:20:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:20:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:20:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:20:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:20:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:20:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:20:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:20:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:20:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:20:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:20:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:20:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:20:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:20:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:20:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:20:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:20:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:20:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:20:57,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:20:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471247605] [2024-11-07 04:20:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471247605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:20:57,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:20:57,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 04:20:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221724710] [2024-11-07 04:20:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:20:57,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 04:20:57,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:20:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 04:20:57,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-07 04:20:57,974 INFO L87 Difference]: Start difference. First operand 476 states and 701 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:20:59,866 INFO L93 Difference]: Finished difference Result 1093 states and 1592 transitions. [2024-11-07 04:20:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 04:20:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:20:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:20:59,870 INFO L225 Difference]: With dead ends: 1093 [2024-11-07 04:20:59,870 INFO L226 Difference]: Without dead ends: 796 [2024-11-07 04:20:59,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-11-07 04:20:59,872 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 366 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 04:20:59,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 858 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 04:20:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-07 04:20:59,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 492. [2024-11-07 04:20:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 394 states have (on average 1.380710659898477) internal successors, (544), 399 states have internal predecessors, (544), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:20:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 724 transitions. [2024-11-07 04:20:59,900 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 724 transitions. Word has length 175 [2024-11-07 04:20:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:20:59,900 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 724 transitions. [2024-11-07 04:20:59,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:20:59,900 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 724 transitions. [2024-11-07 04:20:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 04:20:59,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:20:59,902 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:20:59,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 04:20:59,902 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:20:59,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:20:59,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1778423352, now seen corresponding path program 1 times [2024-11-07 04:20:59,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:20:59,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120530323] [2024-11-07 04:20:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:20:59,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:20:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:21:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:21:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:21:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:21:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:21:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:21:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:21:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:21:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:21:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:21:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:21:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:21:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:21:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:21:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:21:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:21:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:21:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:21:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:21:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:21:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:21:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:21:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:21:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:21:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:21:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:21:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:21:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:21:02,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:21:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120530323] [2024-11-07 04:21:02,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120530323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:21:02,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:21:02,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 04:21:02,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738156000] [2024-11-07 04:21:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:21:02,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 04:21:02,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:21:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 04:21:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-07 04:21:02,848 INFO L87 Difference]: Start difference. First operand 492 states and 724 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:21:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:21:04,164 INFO L93 Difference]: Finished difference Result 1066 states and 1558 transitions. [2024-11-07 04:21:04,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 04:21:04,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 04:21:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:21:04,169 INFO L225 Difference]: With dead ends: 1066 [2024-11-07 04:21:04,169 INFO L226 Difference]: Without dead ends: 753 [2024-11-07 04:21:04,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-07 04:21:04,171 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 264 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:21:04,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 768 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 04:21:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-07 04:21:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 476. [2024-11-07 04:21:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-07 04:21:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-07 04:21:04,214 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-07 04:21:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:21:04,215 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-07 04:21:04,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:21:04,215 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-07 04:21:04,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 04:21:04,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:21:04,216 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:21:04,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 04:21:04,217 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:21:04,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:21:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 848897420, now seen corresponding path program 1 times [2024-11-07 04:21:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:21:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961155323] [2024-11-07 04:21:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:21:04,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:21:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:21:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:21:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:21:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:21:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:21:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:21:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:21:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:21:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:21:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:21:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:21:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:21:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:21:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:21:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 04:21:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:21:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 04:21:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:21:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 04:21:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:21:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 04:21:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:21:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 04:21:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:21:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 04:21:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:21:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 04:21:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:21:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 04:21:10,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:21:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961155323] [2024-11-07 04:21:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961155323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:21:10,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:21:10,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 04:21:10,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054275140] [2024-11-07 04:21:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:21:10,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 04:21:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:21:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 04:21:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-07 04:21:10,082 INFO L87 Difference]: Start difference. First operand 476 states and 701 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:21:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:21:11,654 INFO L93 Difference]: Finished difference Result 681 states and 993 transitions. [2024-11-07 04:21:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 04:21:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-07 04:21:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:21:11,663 INFO L225 Difference]: With dead ends: 681 [2024-11-07 04:21:11,663 INFO L226 Difference]: Without dead ends: 679 [2024-11-07 04:21:11,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-07 04:21:11,666 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 247 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 04:21:11,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1055 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 04:21:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-07 04:21:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 601. [2024-11-07 04:21:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 474 states have (on average 1.3670886075949367) internal successors, (648), 481 states have internal predecessors, (648), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 110 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-07 04:21:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 882 transitions. [2024-11-07 04:21:11,710 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 882 transitions. Word has length 176 [2024-11-07 04:21:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:21:11,710 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 882 transitions. [2024-11-07 04:21:11,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 04:21:11,711 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 882 transitions. [2024-11-07 04:21:11,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 04:21:11,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:21:11,712 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:21:11,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 04:21:11,713 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:21:11,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:21:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1549961998, now seen corresponding path program 1 times [2024-11-07 04:21:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:21:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015931798] [2024-11-07 04:21:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:21:11,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:21:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat