./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.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', '73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.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 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 06:26:45,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 06:26:45,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 06:26:45,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 06:26:45,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 06:26:45,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 06:26:45,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 06:26:45,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 06:26:45,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 06:26:45,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 06:26:45,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 06:26:45,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 06:26:45,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 06:26:45,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 06:26:45,906 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 06:26:45,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 06:26:45,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 06:26:45,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 06:26:45,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 06:26:45,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:26:45,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 06:26:45,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 06:26:45,909 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 -> 73a02241f62dd5f03e40960bce3ebc0277b0698412736895e26f9644edb13c8b [2024-11-07 06:26:46,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 06:26:46,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 06:26:46,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 06:26:46,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 06:26:46,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 06:26:46,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-07 06:26:47,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 06:26:47,822 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 06:26:47,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-07 06:26:47,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c333cd476/6473d177dcde4774b97a8c190f51f5aa/FLAGc7410952e [2024-11-07 06:26:48,161 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c333cd476/6473d177dcde4774b97a8c190f51f5aa [2024-11-07 06:26:48,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 06:26:48,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 06:26:48,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 06:26:48,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 06:26:48,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 06:26:48,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5103e3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48, skipping insertion in model container [2024-11-07 06:26:48,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 06:26:48,310 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-07 06:26:48,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:26:48,397 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 06:26:48,408 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i[919,932] [2024-11-07 06:26:48,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:26:48,461 INFO L204 MainTranslator]: Completed translation [2024-11-07 06:26:48,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48 WrapperNode [2024-11-07 06:26:48,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 06:26:48,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 06:26:48,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 06:26:48,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 06:26:48,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,537 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337 [2024-11-07 06:26:48,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 06:26:48,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 06:26:48,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 06:26:48,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 06:26:48,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,585 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 06:26:48,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 06:26:48,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 06:26:48,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 06:26:48,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 06:26:48,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (1/1) ... [2024-11-07 06:26:48,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:26:48,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 06:26:48,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 06:26:48,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 06:26:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 06:26:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 06:26:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 06:26:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 06:26:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 06:26:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 06:26:48,783 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 06:26:48,785 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 06:26:49,420 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-07 06:26:49,421 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 06:26:49,437 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 06:26:49,438 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 06:26:49,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:26:49 BoogieIcfgContainer [2024-11-07 06:26:49,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 06:26:49,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 06:26:49,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 06:26:49,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 06:26:49,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:26:48" (1/3) ... [2024-11-07 06:26:49,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e797324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:26:49, skipping insertion in model container [2024-11-07 06:26:49,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:26:48" (2/3) ... [2024-11-07 06:26:49,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e797324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:26:49, skipping insertion in model container [2024-11-07 06:26:49,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:26:49" (3/3) ... [2024-11-07 06:26:49,449 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2024-11-07 06:26:49,462 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 06:26:49,463 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 06:26:49,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 06:26:49,532 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;@33899dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 06:26:49,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 06:26:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 06:26:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-07 06:26:49,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:26:49,561 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:26:49,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:26:49,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:26:49,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1831169122, now seen corresponding path program 1 times [2024-11-07 06:26:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:26:49,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51384505] [2024-11-07 06:26:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:26:49,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:26:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:26:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:26:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:26:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:26:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:26:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:26:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:26:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:26:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:26:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:26:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:26:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:26:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:26:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:26:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:26:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:26:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:26:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:26:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:26:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 06:26:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-07 06:26:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 06:26:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 06:26:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 06:26:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 06:26:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-07 06:26:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-07 06:26:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-07 06:26:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-07 06:26:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 06:26:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-07 06:26:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 06:26:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-07 06:26:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-07 06:26:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:50,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-07 06:26:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-07 06:26:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-07 06:26:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-07 06:26:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-07 06:26:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-07 06:26:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-07 06:26:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-07 06:26:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-07 06:26:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-07 06:26:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-07 06:26:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:26:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-07 06:26:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:26:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:26:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:26:51,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:26:51,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51384505] [2024-11-07 06:26:51,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51384505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:26:51,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:26:51,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 06:26:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66489898] [2024-11-07 06:26:51,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:26:51,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 06:26:51,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:26:51,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 06:26:51,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 06:26:51,140 INFO L87 Difference]: Start difference. First operand has 146 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 96 states have internal predecessors, (135), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:26:51,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:26:51,566 INFO L93 Difference]: Finished difference Result 425 states and 780 transitions. [2024-11-07 06:26:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 06:26:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 294 [2024-11-07 06:26:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:26:51,585 INFO L225 Difference]: With dead ends: 425 [2024-11-07 06:26:51,585 INFO L226 Difference]: Without dead ends: 282 [2024-11-07 06:26:51,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 06:26:51,599 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 134 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 06:26:51,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 649 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 06:26:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-07 06:26:51,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 223. [2024-11-07 06:26:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 124 states have (on average 1.2903225806451613) internal successors, (160), 124 states have internal predecessors, (160), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-07 06:26:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 352 transitions. [2024-11-07 06:26:51,724 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 352 transitions. Word has length 294 [2024-11-07 06:26:51,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:26:51,728 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 352 transitions. [2024-11-07 06:26:51,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:26:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 352 transitions. [2024-11-07 06:26:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-07 06:26:51,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:26:51,739 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:26:51,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 06:26:51,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:26:51,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:26:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -392097594, now seen corresponding path program 1 times [2024-11-07 06:26:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:26:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112970558] [2024-11-07 06:26:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:26:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:26:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:27:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:27:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:27:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:27:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:27:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:27:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:27:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:27:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:27:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:27:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:27:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:27:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:27:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:27:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:27:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:27:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:27:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:27:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:27:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 06:27:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-07 06:27:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 06:27:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 06:27:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 06:27:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 06:27:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-07 06:27:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-07 06:27:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-07 06:27:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-07 06:27:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 06:27:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:13,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-07 06:27:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 06:27:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-07 06:27:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-07 06:27:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-07 06:27:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-07 06:27:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-07 06:27:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-07 06:27:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-07 06:27:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-07 06:27:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-07 06:27:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-07 06:27:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-07 06:27:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-07 06:27:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-07 06:27:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:27:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-07 06:27:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:27:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:27:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:27:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:27:14,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112970558] [2024-11-07 06:27:14,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112970558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:27:14,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:27:14,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 06:27:14,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562827747] [2024-11-07 06:27:14,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:27:14,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 06:27:14,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:27:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 06:27:14,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-07 06:27:14,148 INFO L87 Difference]: Start difference. First operand 223 states and 352 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-07 06:27:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:27:18,081 INFO L93 Difference]: Finished difference Result 692 states and 1062 transitions. [2024-11-07 06:27:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 06:27:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 295 [2024-11-07 06:27:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:27:18,092 INFO L225 Difference]: With dead ends: 692 [2024-11-07 06:27:18,095 INFO L226 Difference]: Without dead ends: 553 [2024-11-07 06:27:18,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-11-07 06:27:18,098 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1474 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 06:27:18,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1764 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 06:27:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-07 06:27:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 420. [2024-11-07 06:27:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 267 states have (on average 1.352059925093633) internal successors, (361), 268 states have internal predecessors, (361), 144 states have call successors, (144), 8 states have call predecessors, (144), 8 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-07 06:27:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 649 transitions. [2024-11-07 06:27:18,225 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 649 transitions. Word has length 295 [2024-11-07 06:27:18,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:27:18,229 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 649 transitions. [2024-11-07 06:27:18,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-07 06:27:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 649 transitions. [2024-11-07 06:27:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-07 06:27:18,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:27:18,238 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:27:18,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 06:27:18,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:27:18,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:27:18,240 INFO L85 PathProgramCache]: Analyzing trace with hash 287960776, now seen corresponding path program 1 times [2024-11-07 06:27:18,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:27:18,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90784976] [2024-11-07 06:27:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:27:18,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:27:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:28:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:28:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:28:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:28:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:28:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:28:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:28:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:28:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:28:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:28:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:28:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:28:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:28:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:28:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:28:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:28:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:28:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:28:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:28:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 06:28:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-07 06:28:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 06:28:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 06:28:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 06:28:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 06:28:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-07 06:28:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-07 06:28:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-07 06:28:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-07 06:28:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 06:28:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-07 06:28:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 06:28:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-07 06:28:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-07 06:28:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-07 06:28:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-07 06:28:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-07 06:28:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-07 06:28:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-07 06:28:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-07 06:28:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-07 06:28:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-07 06:28:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-07 06:28:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-07 06:28:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-07 06:28:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:28:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-07 06:28:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:28:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:28:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:28:08,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:28:08,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90784976] [2024-11-07 06:28:08,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90784976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:28:08,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:28:08,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 06:28:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125389611] [2024-11-07 06:28:08,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:28:08,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 06:28:08,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:28:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 06:28:08,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-07 06:28:08,810 INFO L87 Difference]: Start difference. First operand 420 states and 649 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 06:28:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:28:11,485 INFO L93 Difference]: Finished difference Result 690 states and 1054 transitions. [2024-11-07 06:28:11,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 06:28:11,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-07 06:28:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:28:11,492 INFO L225 Difference]: With dead ends: 690 [2024-11-07 06:28:11,492 INFO L226 Difference]: Without dead ends: 551 [2024-11-07 06:28:11,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-07 06:28:11,494 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 817 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 06:28:11,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1748 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 06:28:11,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-07 06:28:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 421. [2024-11-07 06:28:11,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 268 states have (on average 1.3544776119402986) internal successors, (363), 269 states have internal predecessors, (363), 144 states have call successors, (144), 8 states have call predecessors, (144), 8 states have return successors, (144), 143 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-07 06:28:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 651 transitions. [2024-11-07 06:28:11,553 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 651 transitions. Word has length 295 [2024-11-07 06:28:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:28:11,554 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 651 transitions. [2024-11-07 06:28:11,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 06:28:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 651 transitions. [2024-11-07 06:28:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-07 06:28:11,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:28:11,558 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:28:11,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 06:28:11,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:28:11,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:28:11,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1540223034, now seen corresponding path program 1 times [2024-11-07 06:28:11,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:28:11,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890350352] [2024-11-07 06:28:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:28:11,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:28:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat