./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.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-ps-co_file-52.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', 'd2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3'] 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-ps-co_file-52.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 d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:16:11,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:16:12,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:16:12,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:16:12,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:16:12,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:16:12,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:16:12,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:16:12,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:16:12,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:16:12,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:16:12,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:16:12,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:16:12,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:16:12,074 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:16:12,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:16:12,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:16:12,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:16:12,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:16:12,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:16:12,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:16:12,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:16:12,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:16:12,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:16:12,076 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 -> d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 [2024-11-07 07:16:12,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:16:12,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:16:12,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:16:12,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:16:12,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:16:12,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-07 07:16:13,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:16:14,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:16:14,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-07 07:16:14,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c5b7ffa1/6acaa895a08e413198cafd7761ad17a1/FLAG59f229d51 [2024-11-07 07:16:14,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c5b7ffa1/6acaa895a08e413198cafd7761ad17a1 [2024-11-07 07:16:14,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:16:14,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:16:14,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:16:14,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:16:14,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:16:14,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360a393b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14, skipping insertion in model container [2024-11-07 07:16:14,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:16:14,501 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-ps-co_file-52.i[919,932] [2024-11-07 07:16:14,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:16:14,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:16:14,585 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-ps-co_file-52.i[919,932] [2024-11-07 07:16:14,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:16:14,616 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:16:14,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14 WrapperNode [2024-11-07 07:16:14,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:16:14,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:16:14,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:16:14,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:16:14,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,666 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2024-11-07 07:16:14,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:16:14,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:16:14,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:16:14,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:16:14,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,704 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 07:16:14,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:16:14,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:16:14,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:16:14,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:16:14,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (1/1) ... [2024-11-07 07:16:14,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:16:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:16:14,772 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 07:16:14,775 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 07:16:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:16:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:16:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:16:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:16:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:16:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:16:14,887 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:16:14,889 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:16:15,283 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-07 07:16:15,283 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:16:15,292 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:16:15,293 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:16:15,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:16:15 BoogieIcfgContainer [2024-11-07 07:16:15,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:16:15,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:16:15,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:16:15,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:16:15,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:16:14" (1/3) ... [2024-11-07 07:16:15,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e360de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:16:15, skipping insertion in model container [2024-11-07 07:16:15,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:16:14" (2/3) ... [2024-11-07 07:16:15,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e360de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:16:15, skipping insertion in model container [2024-11-07 07:16:15,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:16:15" (3/3) ... [2024-11-07 07:16:15,300 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-07 07:16:15,312 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:16:15,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:16:15,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:16:15,375 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;@4754c1d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:16:15,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:16:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 07:16:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:16:15,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:15,393 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:15,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:15,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:15,397 INFO L85 PathProgramCache]: Analyzing trace with hash -417909114, now seen corresponding path program 1 times [2024-11-07 07:16:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862950962] [2024-11-07 07:16:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:15,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:15,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:15,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862950962] [2024-11-07 07:16:15,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862950962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:15,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:15,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 07:16:15,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869114229] [2024-11-07 07:16:15,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 07:16:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 07:16:15,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:16:15,834 INFO L87 Difference]: Start difference. First operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-07 07:16:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:15,860 INFO L93 Difference]: Finished difference Result 169 states and 288 transitions. [2024-11-07 07:16:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 07:16:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2024-11-07 07:16:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:15,868 INFO L225 Difference]: With dead ends: 169 [2024-11-07 07:16:15,868 INFO L226 Difference]: Without dead ends: 84 [2024-11-07 07:16:15,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 07:16:15,873 INFO L432 NwaCegarLoop]: 129 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, 129 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 07:16:15,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:16:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-07 07:16:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-07 07:16:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 07:16:15,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 129 transitions. [2024-11-07 07:16:15,908 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 129 transitions. Word has length 153 [2024-11-07 07:16:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:15,908 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 129 transitions. [2024-11-07 07:16:15,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-07 07:16:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2024-11-07 07:16:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:16:15,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:15,912 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:15,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:16:15,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:15,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:15,913 INFO L85 PathProgramCache]: Analyzing trace with hash -572067138, now seen corresponding path program 1 times [2024-11-07 07:16:15,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:15,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299429062] [2024-11-07 07:16:15,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:15,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:16,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299429062] [2024-11-07 07:16:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299429062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:16,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:16,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:16:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213295655] [2024-11-07 07:16:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:16,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:16:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:16:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:16,272 INFO L87 Difference]: Start difference. First operand 84 states and 129 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:16,315 INFO L93 Difference]: Finished difference Result 246 states and 381 transitions. [2024-11-07 07:16:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:16:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-11-07 07:16:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:16,317 INFO L225 Difference]: With dead ends: 246 [2024-11-07 07:16:16,317 INFO L226 Difference]: Without dead ends: 165 [2024-11-07 07:16:16,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:16,318 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 82 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:16,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 265 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:16:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-07 07:16:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2024-11-07 07:16:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 115 states have internal predecessors, (163), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-07 07:16:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions. [2024-11-07 07:16:16,347 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 153 [2024-11-07 07:16:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:16,347 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 251 transitions. [2024-11-07 07:16:16,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions. [2024-11-07 07:16:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-07 07:16:16,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:16,349 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:16,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:16:16,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:16,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:16,349 INFO L85 PathProgramCache]: Analyzing trace with hash -347069248, now seen corresponding path program 1 times [2024-11-07 07:16:16,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:16,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764959892] [2024-11-07 07:16:16,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:16,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:16,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764959892] [2024-11-07 07:16:16,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764959892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:16,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:16,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:16:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796321940] [2024-11-07 07:16:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:16,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:16:16,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:16:16,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:16,698 INFO L87 Difference]: Start difference. First operand 162 states and 251 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:16,772 INFO L93 Difference]: Finished difference Result 480 states and 747 transitions. [2024-11-07 07:16:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:16:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154 [2024-11-07 07:16:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:16,774 INFO L225 Difference]: With dead ends: 480 [2024-11-07 07:16:16,774 INFO L226 Difference]: Without dead ends: 321 [2024-11-07 07:16:16,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:16,778 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 87 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:16,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:16:16,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-07 07:16:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2024-11-07 07:16:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 226 states have (on average 1.415929203539823) internal successors, (320), 226 states have internal predecessors, (320), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-07 07:16:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 496 transitions. [2024-11-07 07:16:16,817 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 496 transitions. Word has length 154 [2024-11-07 07:16:16,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:16,818 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 496 transitions. [2024-11-07 07:16:16,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:16,818 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 496 transitions. [2024-11-07 07:16:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-07 07:16:16,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:16,819 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:16,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:16:16,820 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:16,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash -803671258, now seen corresponding path program 1 times [2024-11-07 07:16:16,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:16,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505109989] [2024-11-07 07:16:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:16,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:17,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505109989] [2024-11-07 07:16:17,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505109989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:17,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:17,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:16:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620854482] [2024-11-07 07:16:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:17,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:16:17,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:17,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:16:17,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:17,546 INFO L87 Difference]: Start difference. First operand 319 states and 496 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:17,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:17,712 INFO L93 Difference]: Finished difference Result 697 states and 1085 transitions. [2024-11-07 07:16:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:16:17,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-11-07 07:16:17,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:17,719 INFO L225 Difference]: With dead ends: 697 [2024-11-07 07:16:17,719 INFO L226 Difference]: Without dead ends: 381 [2024-11-07 07:16:17,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:17,724 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:17,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 213 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 07:16:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-07 07:16:17,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 371. [2024-11-07 07:16:17,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 255 states have (on average 1.384313725490196) internal successors, (353), 255 states have internal predecessors, (353), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-07 07:16:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 573 transitions. [2024-11-07 07:16:17,801 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 573 transitions. Word has length 155 [2024-11-07 07:16:17,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:17,802 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 573 transitions. [2024-11-07 07:16:17,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:17,803 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 573 transitions. [2024-11-07 07:16:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 07:16:17,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:17,807 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:17,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 07:16:17,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:17,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1277742239, now seen corresponding path program 1 times [2024-11-07 07:16:17,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:17,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346463462] [2024-11-07 07:16:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:17,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:17,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346463462] [2024-11-07 07:16:17,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346463462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:17,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:17,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:16:17,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478228767] [2024-11-07 07:16:17,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:17,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:16:17,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:16:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:17,973 INFO L87 Difference]: Start difference. First operand 371 states and 573 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:18,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:18,056 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2024-11-07 07:16:18,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:16:18,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-11-07 07:16:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:18,059 INFO L225 Difference]: With dead ends: 719 [2024-11-07 07:16:18,061 INFO L226 Difference]: Without dead ends: 403 [2024-11-07 07:16:18,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:18,063 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:18,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:16:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-07 07:16:18,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 379. [2024-11-07 07:16:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 263 states have (on average 1.3878326996197718) internal successors, (365), 263 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-07 07:16:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-11-07 07:16:18,114 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 156 [2024-11-07 07:16:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:18,115 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-11-07 07:16:18,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-11-07 07:16:18,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 07:16:18,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:18,116 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:18,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 07:16:18,117 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:18,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:18,117 INFO L85 PathProgramCache]: Analyzing trace with hash -63484420, now seen corresponding path program 1 times [2024-11-07 07:16:18,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:18,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413205790] [2024-11-07 07:16:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:18,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413205790] [2024-11-07 07:16:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413205790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:18,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:18,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:16:18,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552036019] [2024-11-07 07:16:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:18,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:16:18,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:18,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:16:18,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:18,314 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:18,374 INFO L93 Difference]: Finished difference Result 713 states and 1107 transitions. [2024-11-07 07:16:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:16:18,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-07 07:16:18,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:18,377 INFO L225 Difference]: With dead ends: 713 [2024-11-07 07:16:18,377 INFO L226 Difference]: Without dead ends: 389 [2024-11-07 07:16:18,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:16:18,378 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:18,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:16:18,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-07 07:16:18,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 380. [2024-11-07 07:16:18,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3863636363636365) internal successors, (366), 264 states have internal predecessors, (366), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-07 07:16:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 586 transitions. [2024-11-07 07:16:18,406 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 586 transitions. Word has length 157 [2024-11-07 07:16:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:18,407 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 586 transitions. [2024-11-07 07:16:18,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:18,407 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 586 transitions. [2024-11-07 07:16:18,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 07:16:18,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:18,408 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:18,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 07:16:18,408 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:18,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash -20546141, now seen corresponding path program 1 times [2024-11-07 07:16:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:18,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168446342] [2024-11-07 07:16:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:18,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:19,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168446342] [2024-11-07 07:16:19,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168446342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:19,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:19,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 07:16:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102838308] [2024-11-07 07:16:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:19,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 07:16:19,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:19,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 07:16:19,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:16:19,180 INFO L87 Difference]: Start difference. First operand 380 states and 586 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:19,446 INFO L93 Difference]: Finished difference Result 723 states and 1119 transitions. [2024-11-07 07:16:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 07:16:19,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-07 07:16:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:19,449 INFO L225 Difference]: With dead ends: 723 [2024-11-07 07:16:19,450 INFO L226 Difference]: Without dead ends: 387 [2024-11-07 07:16:19,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 07:16:19,451 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:19,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 367 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 07:16:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-07 07:16:19,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 380. [2024-11-07 07:16:19,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 264 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-07 07:16:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 585 transitions. [2024-11-07 07:16:19,501 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 585 transitions. Word has length 157 [2024-11-07 07:16:19,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:19,501 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 585 transitions. [2024-11-07 07:16:19,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 585 transitions. [2024-11-07 07:16:19,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 07:16:19,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:19,503 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:19,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 07:16:19,503 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:19,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1668397601, now seen corresponding path program 1 times [2024-11-07 07:16:19,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:19,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565064163] [2024-11-07 07:16:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:27,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:27,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565064163] [2024-11-07 07:16:27,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565064163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:27,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:27,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 07:16:27,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285308578] [2024-11-07 07:16:27,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:27,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 07:16:27,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:27,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 07:16:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-07 07:16:27,607 INFO L87 Difference]: Start difference. First operand 380 states and 585 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:33,783 INFO L93 Difference]: Finished difference Result 714 states and 1069 transitions. [2024-11-07 07:16:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 07:16:33,784 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-07 07:16:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:33,788 INFO L225 Difference]: With dead ends: 714 [2024-11-07 07:16:33,788 INFO L226 Difference]: Without dead ends: 712 [2024-11-07 07:16:33,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2024-11-07 07:16:33,789 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 406 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:33,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 735 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 07:16:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-07 07:16:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 573. [2024-11-07 07:16:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 411 states have (on average 1.391727493917275) internal successors, (572), 411 states have internal predecessors, (572), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-07 07:16:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 880 transitions. [2024-11-07 07:16:33,838 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 880 transitions. Word has length 157 [2024-11-07 07:16:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:33,839 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 880 transitions. [2024-11-07 07:16:33,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:33,839 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 880 transitions. [2024-11-07 07:16:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 07:16:33,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:33,842 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:33,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 07:16:33,843 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:33,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1926563039, now seen corresponding path program 1 times [2024-11-07 07:16:33,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:33,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686380311] [2024-11-07 07:16:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:33,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:16:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:16:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:16:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:16:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:16:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:16:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:16:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:16:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:16:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:16:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:16:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:33,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:16:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:16:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:16:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:16:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:16:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:16:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 07:16:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 07:16:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 07:16:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:16:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:16:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:16:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 07:16:34,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:16:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686380311] [2024-11-07 07:16:34,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686380311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:16:34,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:16:34,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 07:16:34,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275526402] [2024-11-07 07:16:34,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:16:34,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 07:16:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:16:34,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 07:16:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 07:16:34,016 INFO L87 Difference]: Start difference. First operand 573 states and 880 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:16:34,150 INFO L93 Difference]: Finished difference Result 1213 states and 1876 transitions. [2024-11-07 07:16:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 07:16:34,150 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-07 07:16:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:16:34,157 INFO L225 Difference]: With dead ends: 1213 [2024-11-07 07:16:34,157 INFO L226 Difference]: Without dead ends: 696 [2024-11-07 07:16:34,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:16:34,159 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 142 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 07:16:34,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 502 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 07:16:34,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-07 07:16:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 496. [2024-11-07 07:16:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 357 states have (on average 1.3949579831932772) internal successors, (498), 357 states have internal predecessors, (498), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-07 07:16:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 762 transitions. [2024-11-07 07:16:34,213 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 762 transitions. Word has length 157 [2024-11-07 07:16:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:16:34,213 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 762 transitions. [2024-11-07 07:16:34,214 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, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 07:16:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 762 transitions. [2024-11-07 07:16:34,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 07:16:34,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:16:34,215 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:34,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 07:16:34,216 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:16:34,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:16:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash 353835297, now seen corresponding path program 1 times [2024-11-07 07:16:34,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:16:34,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002661256] [2024-11-07 07:16:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:16:34,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:16:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat