./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-98.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_fillercode_fillercodestructure_filler-pr-co_file-98.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', 'b1b9302ff54a53ad4ae263e58d48d5865cea0604451c8d951e928f2ef921524a'] 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_fillercode_fillercodestructure_filler-pr-co_file-98.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 b1b9302ff54a53ad4ae263e58d48d5865cea0604451c8d951e928f2ef921524a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 06:48:17,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 06:48:17,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 06:48:17,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 06:48:17,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 06:48:17,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 06:48:17,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 06:48:17,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 06:48:17,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 06:48:17,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 06:48:17,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 06:48:17,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 06:48:17,635 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 06:48:17,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 06:48:17,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 06:48:17,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 06:48:17,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 06:48:17,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 06:48:17,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 06:48:17,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 06:48:17,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:48:17,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 06:48:17,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 06:48:17,640 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 -> b1b9302ff54a53ad4ae263e58d48d5865cea0604451c8d951e928f2ef921524a [2024-11-07 06:48:17,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 06:48:17,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 06:48:17,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 06:48:17,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 06:48:17,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 06:48:17,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-98.i [2024-11-07 06:48:19,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 06:48:19,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 06:48:19,716 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-98.i [2024-11-07 06:48:19,725 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/500a38c9e/b6842bbfe5734e8abf205fd97d948e56/FLAGca8e0a5c9 [2024-11-07 06:48:19,748 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/500a38c9e/b6842bbfe5734e8abf205fd97d948e56 [2024-11-07 06:48:19,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 06:48:19,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 06:48:19,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 06:48:19,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 06:48:19,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 06:48:19,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:48:19" (1/1) ... [2024-11-07 06:48:19,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44019add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:19, skipping insertion in model container [2024-11-07 06:48:19,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:48:19" (1/1) ... [2024-11-07 06:48:19,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 06:48:19,926 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_fillercode_fillercodestructure_filler-pr-co_file-98.i[919,932] [2024-11-07 06:48:20,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:48:20,013 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 06:48:20,024 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_fillercode_fillercodestructure_filler-pr-co_file-98.i[919,932] [2024-11-07 06:48:20,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:48:20,073 INFO L204 MainTranslator]: Completed translation [2024-11-07 06:48:20,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20 WrapperNode [2024-11-07 06:48:20,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 06:48:20,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 06:48:20,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 06:48:20,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 06:48:20,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,145 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-11-07 06:48:20,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 06:48:20,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 06:48:20,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 06:48:20,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 06:48:20,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,187 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 06:48:20,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 06:48:20,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 06:48:20,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 06:48:20,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 06:48:20,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (1/1) ... [2024-11-07 06:48:20,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:48:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 06:48:20,268 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 06:48:20,272 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 06:48:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 06:48:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 06:48:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 06:48:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 06:48:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 06:48:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 06:48:20,387 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 06:48:20,388 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 06:48:20,989 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-07 06:48:20,990 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 06:48:21,004 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 06:48:21,004 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 06:48:21,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:48:21 BoogieIcfgContainer [2024-11-07 06:48:21,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 06:48:21,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 06:48:21,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 06:48:21,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 06:48:21,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:48:19" (1/3) ... [2024-11-07 06:48:21,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2283fa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:48:21, skipping insertion in model container [2024-11-07 06:48:21,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:20" (2/3) ... [2024-11-07 06:48:21,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2283fa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:48:21, skipping insertion in model container [2024-11-07 06:48:21,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:48:21" (3/3) ... [2024-11-07 06:48:21,016 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-98.i [2024-11-07 06:48:21,031 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 06:48:21,032 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 06:48:21,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 06:48:21,095 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;@3ba042ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 06:48:21,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 06:48:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 69 states have (on average 1.434782608695652) internal successors, (99), 70 states have internal predecessors, (99), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 06:48:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-07 06:48:21,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:21,119 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:21,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:21,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:21,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2007489777, now seen corresponding path program 1 times [2024-11-07 06:48:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:21,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255062043] [2024-11-07 06:48:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:48:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:48:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 06:48:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:48:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 06:48:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 06:48:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 06:48:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:48:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:48:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:48:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:48:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:48:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:48:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:48:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:48:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:48:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:48:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:48:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:48:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:48:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:48:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:48:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:48:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:48:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:48:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:48:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:48:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:48:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 06:48:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:48:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:48:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:48:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:48:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:48:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:48:21,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:48:21,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255062043] [2024-11-07 06:48:21,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255062043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:48:21,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:48:21,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 06:48:21,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795074938] [2024-11-07 06:48:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:48:21,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 06:48:21,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:48:21,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 06:48:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:48:21,802 INFO L87 Difference]: Start difference. First operand has 106 states, 69 states have (on average 1.434782608695652) internal successors, (99), 70 states have internal predecessors, (99), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 06:48:21,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:48:21,842 INFO L93 Difference]: Finished difference Result 205 states and 362 transitions. [2024-11-07 06:48:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 06:48:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 217 [2024-11-07 06:48:21,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:48:21,851 INFO L225 Difference]: With dead ends: 205 [2024-11-07 06:48:21,852 INFO L226 Difference]: Without dead ends: 102 [2024-11-07 06:48:21,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:48:21,863 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:48:21,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:48:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-07 06:48:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-07 06:48:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.378787878787879) internal successors, (91), 66 states have internal predecessors, (91), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 06:48:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 159 transitions. [2024-11-07 06:48:21,915 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 159 transitions. Word has length 217 [2024-11-07 06:48:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:48:21,916 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 159 transitions. [2024-11-07 06:48:21,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 06:48:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 159 transitions. [2024-11-07 06:48:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-07 06:48:21,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:21,924 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:21,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 06:48:21,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:21,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1922861391, now seen corresponding path program 1 times [2024-11-07 06:48:21,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177638601] [2024-11-07 06:48:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:21,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:48:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:48:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 06:48:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:48:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 06:48:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 06:48:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 06:48:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:48:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:48:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:48:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:48:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:48:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:48:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:48:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:48:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:48:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:48:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:48:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:48:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:48:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:48:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:48:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:48:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:48:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:48:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:48:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:48:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:48:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 06:48:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:48:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:23,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:48:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:24,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:48:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:24,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:48:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:24,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:48:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:48:24,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:48:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177638601] [2024-11-07 06:48:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177638601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:48:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:48:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 06:48:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681274248] [2024-11-07 06:48:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:48:24,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 06:48:24,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:48:24,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 06:48:24,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 06:48:24,022 INFO L87 Difference]: Start difference. First operand 102 states and 159 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:48:24,707 INFO L93 Difference]: Finished difference Result 282 states and 445 transitions. [2024-11-07 06:48:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 06:48:24,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 217 [2024-11-07 06:48:24,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:48:24,713 INFO L225 Difference]: With dead ends: 282 [2024-11-07 06:48:24,716 INFO L226 Difference]: Without dead ends: 183 [2024-11-07 06:48:24,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 06:48:24,718 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 94 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 06:48:24,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 423 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 06:48:24,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-07 06:48:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2024-11-07 06:48:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 100 states have (on average 1.31) internal successors, (131), 100 states have internal predecessors, (131), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 06:48:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 267 transitions. [2024-11-07 06:48:24,775 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 267 transitions. Word has length 217 [2024-11-07 06:48:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:48:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 267 transitions. [2024-11-07 06:48:24,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 267 transitions. [2024-11-07 06:48:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-07 06:48:24,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:24,788 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:24,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 06:48:24,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:24,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash 783758003, now seen corresponding path program 1 times [2024-11-07 06:48:24,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643358027] [2024-11-07 06:48:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:24,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:48:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:48:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 06:48:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:48:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 06:48:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 06:48:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 06:48:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:48:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:48:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:48:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:48:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:48:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:48:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:48:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:48:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:48:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:48:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:48:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:48:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:48:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:48:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:48:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:48:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:48:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:48:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:48:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:48:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:48:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 06:48:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:48:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:48:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:48:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:48:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:48:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:48:25,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:48:25,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643358027] [2024-11-07 06:48:25,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643358027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:48:25,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:48:25,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 06:48:25,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396368407] [2024-11-07 06:48:25,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:48:25,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 06:48:25,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:48:25,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 06:48:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 06:48:25,704 INFO L87 Difference]: Start difference. First operand 171 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:25,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:48:25,936 INFO L93 Difference]: Finished difference Result 271 states and 425 transitions. [2024-11-07 06:48:25,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 06:48:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 217 [2024-11-07 06:48:25,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:48:25,940 INFO L225 Difference]: With dead ends: 271 [2024-11-07 06:48:25,940 INFO L226 Difference]: Without dead ends: 172 [2024-11-07 06:48:25,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 06:48:25,941 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 06:48:25,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 229 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 06:48:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-07 06:48:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-07 06:48:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 101 states have (on average 1.306930693069307) internal successors, (132), 101 states have internal predecessors, (132), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 06:48:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 268 transitions. [2024-11-07 06:48:25,991 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 268 transitions. Word has length 217 [2024-11-07 06:48:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:48:25,993 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 268 transitions. [2024-11-07 06:48:25,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 268 transitions. [2024-11-07 06:48:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:48:25,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:26,000 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:26,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 06:48:26,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:26,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash -340582665, now seen corresponding path program 1 times [2024-11-07 06:48:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:26,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88742057] [2024-11-07 06:48:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:48:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:48:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 06:48:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:48:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 06:48:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 06:48:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 06:48:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:48:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:48:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:48:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:48:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:48:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:48:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:48:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:48:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:48:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:48:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:48:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:48:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:48:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:48:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:48:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:48:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:48:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:48:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:48:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:48:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:48:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 06:48:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:48:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:48:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:48:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:48:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:48:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:48:27,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:48:27,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88742057] [2024-11-07 06:48:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88742057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:48:27,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:48:27,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 06:48:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391702791] [2024-11-07 06:48:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:48:27,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 06:48:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:48:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 06:48:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 06:48:27,283 INFO L87 Difference]: Start difference. First operand 172 states and 268 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:28,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:48:28,115 INFO L93 Difference]: Finished difference Result 396 states and 624 transitions. [2024-11-07 06:48:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 06:48:28,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-07 06:48:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:48:28,118 INFO L225 Difference]: With dead ends: 396 [2024-11-07 06:48:28,118 INFO L226 Difference]: Without dead ends: 296 [2024-11-07 06:48:28,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 06:48:28,120 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 225 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 06:48:28,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 654 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 06:48:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-07 06:48:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 275. [2024-11-07 06:48:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 169 states have (on average 1.349112426035503) internal successors, (228), 169 states have internal predecessors, (228), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-07 06:48:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 432 transitions. [2024-11-07 06:48:28,184 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 432 transitions. Word has length 218 [2024-11-07 06:48:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:48:28,185 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 432 transitions. [2024-11-07 06:48:28,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 432 transitions. [2024-11-07 06:48:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:48:28,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:28,191 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:28,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 06:48:28,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:28,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash -607751005, now seen corresponding path program 1 times [2024-11-07 06:48:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049960231] [2024-11-07 06:48:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:48:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:48:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 06:48:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:48:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 06:48:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 06:48:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 06:48:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:48:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:48:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:48:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:48:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:48:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:48:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:48:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:48:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:48:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:48:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:48:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:48:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:48:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:48:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:48:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:48:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:48:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:48:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:48:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:48:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:48:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 06:48:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:48:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:48:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:48:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:48:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:29,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:48:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:48:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:48:30,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:48:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049960231] [2024-11-07 06:48:30,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049960231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:48:30,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:48:30,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 06:48:30,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015496747] [2024-11-07 06:48:30,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:48:30,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 06:48:30,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:48:30,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 06:48:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 06:48:30,009 INFO L87 Difference]: Start difference. First operand 275 states and 432 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:48:31,568 INFO L93 Difference]: Finished difference Result 645 states and 1003 transitions. [2024-11-07 06:48:31,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 06:48:31,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-07 06:48:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:48:31,575 INFO L225 Difference]: With dead ends: 645 [2024-11-07 06:48:31,575 INFO L226 Difference]: Without dead ends: 449 [2024-11-07 06:48:31,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-07 06:48:31,577 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 341 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 06:48:31,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 689 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 06:48:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-07 06:48:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 421. [2024-11-07 06:48:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 259 states have (on average 1.3243243243243243) internal successors, (343), 260 states have internal predecessors, (343), 156 states have call successors, (156), 5 states have call predecessors, (156), 5 states have return successors, (156), 155 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-07 06:48:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 655 transitions. [2024-11-07 06:48:31,699 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 655 transitions. Word has length 218 [2024-11-07 06:48:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:48:31,700 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 655 transitions. [2024-11-07 06:48:31,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:48:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 655 transitions. [2024-11-07 06:48:31,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:48:31,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:48:31,704 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:31,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 06:48:31,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:48:31,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:48:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1000778015, now seen corresponding path program 1 times [2024-11-07 06:48:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:48:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028164659] [2024-11-07 06:48:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:48:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:48:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat