./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.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-pe-co_file-86.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', 'ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1'] 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-pe-co_file-86.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 ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 06:13:51,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 06:13:51,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 06:13:51,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 06:13:51,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 06:13:51,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 06:13:51,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 06:13:51,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 06:13:51,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 06:13:51,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 06:13:51,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 06:13:51,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 06:13:51,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 06:13:51,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 06:13:51,934 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 06:13:51,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 06:13:51,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 06:13:51,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:13:51,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 06:13:51,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 06:13:51,936 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 -> ce9fa65ad297a46fd1c0c7bb56056c5a0304efd02803c9735a082016b49852e1 [2024-11-07 06:13:52,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 06:13:52,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 06:13:52,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 06:13:52,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 06:13:52,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 06:13:52,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-07 06:13:53,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 06:13:53,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 06:13:53,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-07 06:13:53,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5d34c0e72/2bd44922d7524348bc9e114d4d171adc/FLAG763ca942f [2024-11-07 06:13:53,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5d34c0e72/2bd44922d7524348bc9e114d4d171adc [2024-11-07 06:13:53,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 06:13:53,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 06:13:53,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 06:13:53,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 06:13:53,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 06:13:53,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:13:53" (1/1) ... [2024-11-07 06:13:53,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77384649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:53, skipping insertion in model container [2024-11-07 06:13:53,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:13:53" (1/1) ... [2024-11-07 06:13:53,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 06:13:54,065 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-pe-co_file-86.i[919,932] [2024-11-07 06:13:54,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:13:54,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 06:13:54,155 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-pe-co_file-86.i[919,932] [2024-11-07 06:13:54,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:13:54,208 INFO L204 MainTranslator]: Completed translation [2024-11-07 06:13:54,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54 WrapperNode [2024-11-07 06:13:54,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 06:13:54,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 06:13:54,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 06:13:54,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 06:13:54,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,277 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-11-07 06:13:54,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 06:13:54,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 06:13:54,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 06:13:54,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 06:13:54,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,319 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 06:13:54,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 06:13:54,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 06:13:54,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 06:13:54,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 06:13:54,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (1/1) ... [2024-11-07 06:13:54,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:13:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 06:13:54,406 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 06:13:54,410 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 06:13:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 06:13:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 06:13:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 06:13:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 06:13:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 06:13:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 06:13:54,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 06:13:54,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 06:13:54,975 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-07 06:13:54,976 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 06:13:54,988 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 06:13:54,990 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 06:13:54,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:13:54 BoogieIcfgContainer [2024-11-07 06:13:54,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 06:13:54,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 06:13:54,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 06:13:54,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 06:13:54,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:13:53" (1/3) ... [2024-11-07 06:13:54,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0124dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:13:54, skipping insertion in model container [2024-11-07 06:13:54,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:13:54" (2/3) ... [2024-11-07 06:13:54,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0124dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:13:54, skipping insertion in model container [2024-11-07 06:13:54,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:13:54" (3/3) ... [2024-11-07 06:13:54,999 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-86.i [2024-11-07 06:13:55,013 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 06:13:55,014 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 06:13:55,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 06:13:55,069 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;@1bb91bb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 06:13:55,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 06:13:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 06:13:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:13:55,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:13:55,090 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:13:55,090 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:13:55,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:13:55,095 INFO L85 PathProgramCache]: Analyzing trace with hash 109598789, now seen corresponding path program 1 times [2024-11-07 06:13:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:13:55,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295568202] [2024-11-07 06:13:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:13:55,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:13:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:13:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:13:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:13:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:13:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:13:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:13:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:13:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:13:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:13:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:13:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:13:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:13:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:13:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:13:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:13:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:13:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:13:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:13:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:13:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:13:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:13:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:13:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:13:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:13:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:13:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:13:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:13:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:13:55,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:13:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295568202] [2024-11-07 06:13:55,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295568202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:13:55,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:13:55,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 06:13:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521121137] [2024-11-07 06:13:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:13:55,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 06:13:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:13:55,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 06:13:55,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:13:55,574 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:13:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:13:55,603 INFO L93 Difference]: Finished difference Result 187 states and 329 transitions. [2024-11-07 06:13:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 06:13:55,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-07 06:13:55,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:13:55,612 INFO L225 Difference]: With dead ends: 187 [2024-11-07 06:13:55,612 INFO L226 Difference]: Without dead ends: 93 [2024-11-07 06:13:55,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:13:55,620 INFO L432 NwaCegarLoop]: 146 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, 146 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:13:55,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:13:55,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-07 06:13:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-07 06:13:55,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 06:13:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2024-11-07 06:13:55,661 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 174 [2024-11-07 06:13:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:13:55,661 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2024-11-07 06:13:55,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:13:55,662 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2024-11-07 06:13:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:13:55,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:13:55,665 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:13:55,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 06:13:55,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:13:55,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:13:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash 744198851, now seen corresponding path program 1 times [2024-11-07 06:13:55,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:13:55,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266579094] [2024-11-07 06:13:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:13:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:13:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:13:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:13:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:13:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:13:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:13:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:13:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:13:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:13:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:13:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:13:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:13:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:13:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:13:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:13:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:13:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:13:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:13:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:13:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:13:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:13:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:13:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:13:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:13:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:13:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:13:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:13:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:13:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:13:56,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:13:56,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266579094] [2024-11-07 06:13:56,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266579094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:13:56,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:13:56,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:13:56,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437114773] [2024-11-07 06:13:56,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:13:56,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:13:56,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:13:56,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:13:56,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:13:56,129 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:13:56,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:13:56,168 INFO L93 Difference]: Finished difference Result 184 states and 291 transitions. [2024-11-07 06:13:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:13:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 06:13:56,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:13:56,171 INFO L225 Difference]: With dead ends: 184 [2024-11-07 06:13:56,174 INFO L226 Difference]: Without dead ends: 94 [2024-11-07 06:13:56,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:13:56,175 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:13:56,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:13:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-07 06:13:56,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-07 06:13:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 06:13:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-07 06:13:56,189 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 174 [2024-11-07 06:13:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:13:56,195 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-07 06:13:56,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:13:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-07 06:13:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:13:56,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:13:56,197 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:13:56,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 06:13:56,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:13:56,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:13:56,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1775761083, now seen corresponding path program 1 times [2024-11-07 06:13:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:13:56,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582423962] [2024-11-07 06:13:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:13:56,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:13:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:13:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:13:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:13:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:13:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:13:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:13:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:13:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:13:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:13:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:13:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:13:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:13:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:13:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:13:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:13:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:13:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:13:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:13:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:13:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:13:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:13:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:13:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:13:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:13:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:13:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:13:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:13:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:13:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:13:56,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:13:56,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582423962] [2024-11-07 06:13:56,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582423962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:13:56,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:13:56,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 06:13:56,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241506941] [2024-11-07 06:13:56,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:13:56,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 06:13:56,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:13:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 06:13:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 06:13:56,662 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:13:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:13:56,969 INFO L93 Difference]: Finished difference Result 277 states and 436 transitions. [2024-11-07 06:13:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 06:13:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 06:13:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:13:56,972 INFO L225 Difference]: With dead ends: 277 [2024-11-07 06:13:56,972 INFO L226 Difference]: Without dead ends: 186 [2024-11-07 06:13:56,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 06:13:56,976 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 114 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 06:13:56,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 490 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 06:13:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-07 06:13:56,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 141. [2024-11-07 06:13:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 84 states have internal predecessors, (112), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 06:13:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 220 transitions. [2024-11-07 06:13:57,002 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 220 transitions. Word has length 174 [2024-11-07 06:13:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:13:57,003 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 220 transitions. [2024-11-07 06:13:57,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:13:57,003 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 220 transitions. [2024-11-07 06:13:57,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:13:57,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:13:57,008 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:13:57,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 06:13:57,008 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:13:57,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:13:57,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1353059257, now seen corresponding path program 1 times [2024-11-07 06:13:57,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:13:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695386097] [2024-11-07 06:13:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:13:57,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:13:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:08,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:08,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695386097] [2024-11-07 06:14:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695386097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:08,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:08,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 06:14:08,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290535031] [2024-11-07 06:14:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:08,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 06:14:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 06:14:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-07 06:14:08,142 INFO L87 Difference]: Start difference. First operand 141 states and 220 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:12,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:12,994 INFO L93 Difference]: Finished difference Result 497 states and 782 transitions. [2024-11-07 06:14:12,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 06:14:12,995 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-07 06:14:12,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:13,000 INFO L225 Difference]: With dead ends: 497 [2024-11-07 06:14:13,000 INFO L226 Difference]: Without dead ends: 406 [2024-11-07 06:14:13,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=269, Invalid=723, Unknown=0, NotChecked=0, Total=992 [2024-11-07 06:14:13,001 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1342 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:13,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1112 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-07 06:14:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-07 06:14:13,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 184. [2024-11-07 06:14:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 127 states have internal predecessors, (181), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 06:14:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 289 transitions. [2024-11-07 06:14:13,042 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 289 transitions. Word has length 174 [2024-11-07 06:14:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:13,043 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 289 transitions. [2024-11-07 06:14:13,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 289 transitions. [2024-11-07 06:14:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:14:13,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:13,046 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:13,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 06:14:13,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:13,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:13,047 INFO L85 PathProgramCache]: Analyzing trace with hash -651994679, now seen corresponding path program 1 times [2024-11-07 06:14:13,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:13,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004204317] [2024-11-07 06:14:13,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:13,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:13,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004204317] [2024-11-07 06:14:13,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004204317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:13,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:13,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 06:14:13,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506149548] [2024-11-07 06:14:13,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:13,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 06:14:13,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 06:14:13,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 06:14:13,452 INFO L87 Difference]: Start difference. First operand 184 states and 289 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:13,541 INFO L93 Difference]: Finished difference Result 359 states and 563 transitions. [2024-11-07 06:14:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 06:14:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 06:14:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:13,547 INFO L225 Difference]: With dead ends: 359 [2024-11-07 06:14:13,547 INFO L226 Difference]: Without dead ends: 268 [2024-11-07 06:14:13,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 06:14:13,548 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 181 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:13,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 396 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 06:14:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-07 06:14:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 195. [2024-11-07 06:14:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.434782608695652) internal successors, (198), 138 states have internal predecessors, (198), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 06:14:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 306 transitions. [2024-11-07 06:14:13,572 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 306 transitions. Word has length 174 [2024-11-07 06:14:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:13,572 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 306 transitions. [2024-11-07 06:14:13,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 306 transitions. [2024-11-07 06:14:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 06:14:13,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:13,574 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:13,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 06:14:13,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:13,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash 947763333, now seen corresponding path program 1 times [2024-11-07 06:14:13,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:13,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250015945] [2024-11-07 06:14:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:13,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:13,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:13,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250015945] [2024-11-07 06:14:13,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250015945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:13,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:13,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:14:13,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169540261] [2024-11-07 06:14:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:13,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:14:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:13,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:14:13,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:14:13,674 INFO L87 Difference]: Start difference. First operand 195 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:13,715 INFO L93 Difference]: Finished difference Result 430 states and 678 transitions. [2024-11-07 06:14:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:14:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-07 06:14:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:13,718 INFO L225 Difference]: With dead ends: 430 [2024-11-07 06:14:13,718 INFO L226 Difference]: Without dead ends: 328 [2024-11-07 06:14:13,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:14:13,720 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 136 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:13,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:14:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-07 06:14:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2024-11-07 06:14:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 241 states have (on average 1.4439834024896265) internal successors, (348), 241 states have internal predecessors, (348), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-07 06:14:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 510 transitions. [2024-11-07 06:14:13,752 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 510 transitions. Word has length 174 [2024-11-07 06:14:13,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:13,753 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 510 transitions. [2024-11-07 06:14:13,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:13,753 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 510 transitions. [2024-11-07 06:14:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:13,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:13,755 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:13,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 06:14:13,755 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:13,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1391099721, now seen corresponding path program 1 times [2024-11-07 06:14:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:13,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274545443] [2024-11-07 06:14:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:17,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274545443] [2024-11-07 06:14:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274545443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 06:14:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844024470] [2024-11-07 06:14:17,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:17,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 06:14:17,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 06:14:17,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-07 06:14:17,125 INFO L87 Difference]: Start difference. First operand 326 states and 510 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:18,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:18,274 INFO L93 Difference]: Finished difference Result 671 states and 1044 transitions. [2024-11-07 06:14:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 06:14:18,275 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 06:14:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:18,278 INFO L225 Difference]: With dead ends: 671 [2024-11-07 06:14:18,278 INFO L226 Difference]: Without dead ends: 437 [2024-11-07 06:14:18,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-07 06:14:18,280 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 971 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:18,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1102 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 06:14:18,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-07 06:14:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 290. [2024-11-07 06:14:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.4097560975609755) internal successors, (289), 205 states have internal predecessors, (289), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-07 06:14:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 451 transitions. [2024-11-07 06:14:18,308 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 451 transitions. Word has length 175 [2024-11-07 06:14:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:18,309 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 451 transitions. [2024-11-07 06:14:18,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 451 transitions. [2024-11-07 06:14:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:18,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:18,311 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:18,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 06:14:18,312 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:18,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1339895313, now seen corresponding path program 1 times [2024-11-07 06:14:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:18,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135169656] [2024-11-07 06:14:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:18,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:18,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:18,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135169656] [2024-11-07 06:14:18,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135169656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:18,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:18,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 06:14:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719667607] [2024-11-07 06:14:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:18,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 06:14:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:18,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 06:14:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 06:14:18,673 INFO L87 Difference]: Start difference. First operand 290 states and 451 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:18,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:18,766 INFO L93 Difference]: Finished difference Result 556 states and 871 transitions. [2024-11-07 06:14:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 06:14:18,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-07 06:14:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:18,771 INFO L225 Difference]: With dead ends: 556 [2024-11-07 06:14:18,771 INFO L226 Difference]: Without dead ends: 356 [2024-11-07 06:14:18,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 06:14:18,773 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 197 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:18,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 386 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 06:14:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-07 06:14:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 290. [2024-11-07 06:14:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.3853658536585365) internal successors, (284), 205 states have internal predecessors, (284), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-07 06:14:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 446 transitions. [2024-11-07 06:14:18,795 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 446 transitions. Word has length 175 [2024-11-07 06:14:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:18,796 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 446 transitions. [2024-11-07 06:14:18,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 446 transitions. [2024-11-07 06:14:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:18,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:18,798 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:18,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 06:14:18,798 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:18,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1943954733, now seen corresponding path program 1 times [2024-11-07 06:14:18,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:18,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377041280] [2024-11-07 06:14:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:18,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:24,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:24,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377041280] [2024-11-07 06:14:24,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377041280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:24,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:24,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-07 06:14:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467321035] [2024-11-07 06:14:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:24,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 06:14:24,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 06:14:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-07 06:14:24,146 INFO L87 Difference]: Start difference. First operand 290 states and 446 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:28,310 INFO L93 Difference]: Finished difference Result 469 states and 713 transitions. [2024-11-07 06:14:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 06:14:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-07 06:14:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:28,314 INFO L225 Difference]: With dead ends: 469 [2024-11-07 06:14:28,314 INFO L226 Difference]: Without dead ends: 467 [2024-11-07 06:14:28,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=346, Invalid=986, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 06:14:28,316 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 905 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:28,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1187 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 06:14:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-07 06:14:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 290. [2024-11-07 06:14:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 205 states have (on average 1.3853658536585365) internal successors, (284), 205 states have internal predecessors, (284), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-07 06:14:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 446 transitions. [2024-11-07 06:14:28,341 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 446 transitions. Word has length 175 [2024-11-07 06:14:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:28,341 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 446 transitions. [2024-11-07 06:14:28,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-07 06:14:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 446 transitions. [2024-11-07 06:14:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:28,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:28,344 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:28,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 06:14:28,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1888325872, now seen corresponding path program 1 times [2024-11-07 06:14:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567557363] [2024-11-07 06:14:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:28,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:28,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567557363] [2024-11-07 06:14:28,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567557363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:28,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:28,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:14:28,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693578963] [2024-11-07 06:14:28,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:28,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:14:28,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:28,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:14:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:14:28,527 INFO L87 Difference]: Start difference. First operand 290 states and 446 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:28,558 INFO L93 Difference]: Finished difference Result 580 states and 896 transitions. [2024-11-07 06:14:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:14:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 06:14:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:28,562 INFO L225 Difference]: With dead ends: 580 [2024-11-07 06:14:28,562 INFO L226 Difference]: Without dead ends: 383 [2024-11-07 06:14:28,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:14:28,564 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 85 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:28,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 332 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:14:28,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-07 06:14:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2024-11-07 06:14:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 268 states have (on average 1.3880597014925373) internal successors, (372), 268 states have internal predecessors, (372), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-07 06:14:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 588 transitions. [2024-11-07 06:14:28,597 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 588 transitions. Word has length 175 [2024-11-07 06:14:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:28,598 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 588 transitions. [2024-11-07 06:14:28,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 588 transitions. [2024-11-07 06:14:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:28,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:28,600 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:28,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 06:14:28,600 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:28,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:28,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1705576846, now seen corresponding path program 1 times [2024-11-07 06:14:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:28,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408353751] [2024-11-07 06:14:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:28,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:35,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:35,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408353751] [2024-11-07 06:14:35,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408353751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:35,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:35,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 06:14:35,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707888140] [2024-11-07 06:14:35,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:35,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 06:14:35,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 06:14:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-07 06:14:35,880 INFO L87 Difference]: Start difference. First operand 381 states and 588 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:41,328 INFO L93 Difference]: Finished difference Result 601 states and 913 transitions. [2024-11-07 06:14:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 06:14:41,330 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 06:14:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:41,335 INFO L225 Difference]: With dead ends: 601 [2024-11-07 06:14:41,335 INFO L226 Difference]: Without dead ends: 599 [2024-11-07 06:14:41,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2024-11-07 06:14:41,337 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 724 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:41,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1110 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 06:14:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-07 06:14:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 416. [2024-11-07 06:14:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-07 06:14:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 642 transitions. [2024-11-07 06:14:41,370 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 642 transitions. Word has length 175 [2024-11-07 06:14:41,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:41,371 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 642 transitions. [2024-11-07 06:14:41,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 642 transitions. [2024-11-07 06:14:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 06:14:41,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:41,374 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:41,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 06:14:41,375 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:41,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:41,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1568322096, now seen corresponding path program 1 times [2024-11-07 06:14:41,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:41,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122728026] [2024-11-07 06:14:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:41,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:48,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122728026] [2024-11-07 06:14:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122728026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:48,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 06:14:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656216828] [2024-11-07 06:14:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:48,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 06:14:48,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:48,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 06:14:48,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-07 06:14:48,561 INFO L87 Difference]: Start difference. First operand 416 states and 642 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:14:54,619 INFO L93 Difference]: Finished difference Result 595 states and 907 transitions. [2024-11-07 06:14:54,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 06:14:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-07 06:14:54,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:14:54,624 INFO L225 Difference]: With dead ends: 595 [2024-11-07 06:14:54,624 INFO L226 Difference]: Without dead ends: 593 [2024-11-07 06:14:54,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-07 06:14:54,625 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 942 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-07 06:14:54,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1049 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-07 06:14:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-07 06:14:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 416. [2024-11-07 06:14:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-07 06:14:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 642 transitions. [2024-11-07 06:14:54,661 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 642 transitions. Word has length 175 [2024-11-07 06:14:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:14:54,662 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 642 transitions. [2024-11-07 06:14:54,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:14:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 642 transitions. [2024-11-07 06:14:54,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 06:14:54,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:14:54,664 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:14:54,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 06:14:54,665 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:14:54,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:14:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash 519318307, now seen corresponding path program 1 times [2024-11-07 06:14:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:14:54,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188936664] [2024-11-07 06:14:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:14:54,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:14:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:14:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:14:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:14:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:14:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:14:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:14:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:14:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:14:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:14:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:14:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:14:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:14:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:14:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:14:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:14:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:14:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:14:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:14:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:14:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:14:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:14:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:14:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:14:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:14:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:14:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:14:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:14:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:14:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:14:59,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:14:59,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188936664] [2024-11-07 06:14:59,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188936664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:14:59,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:14:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-07 06:14:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758879637] [2024-11-07 06:14:59,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:14:59,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 06:14:59,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:14:59,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 06:14:59,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-07 06:14:59,754 INFO L87 Difference]: Start difference. First operand 416 states and 642 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:15:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:15:04,297 INFO L93 Difference]: Finished difference Result 558 states and 852 transitions. [2024-11-07 06:15:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 06:15:04,299 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-07 06:15:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:15:04,303 INFO L225 Difference]: With dead ends: 558 [2024-11-07 06:15:04,303 INFO L226 Difference]: Without dead ends: 556 [2024-11-07 06:15:04,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2024-11-07 06:15:04,305 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 763 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:15:04,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1414 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 06:15:04,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-07 06:15:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 413. [2024-11-07 06:15:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 300 states have (on average 1.4066666666666667) internal successors, (422), 300 states have internal predecessors, (422), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-07 06:15:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 638 transitions. [2024-11-07 06:15:04,338 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 638 transitions. Word has length 176 [2024-11-07 06:15:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:15:04,338 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 638 transitions. [2024-11-07 06:15:04,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-07 06:15:04,339 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 638 transitions. [2024-11-07 06:15:04,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 06:15:04,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:15:04,342 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 06:15:04,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 06:15:04,343 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:15:04,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:15:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash -245946368, now seen corresponding path program 1 times [2024-11-07 06:15:04,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:15:04,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612665229] [2024-11-07 06:15:04,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:15:04,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:15:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:15:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:15:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:15:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:15:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:15:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:15:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:15:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:15:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:15:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:15:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:15:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:15:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-07 06:15:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:15:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 06:15:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:15:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-07 06:15:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:15:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-07 06:15:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:15:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 06:15:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:15:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 06:15:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:15:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-07 06:15:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:15:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 06:15:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:15:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-07 06:15:10,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:15:10,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612665229] [2024-11-07 06:15:10,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612665229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:15:10,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:15:10,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-07 06:15:10,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27277085] [2024-11-07 06:15:10,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:15:10,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 06:15:10,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:15:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 06:15:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-07 06:15:10,827 INFO L87 Difference]: Start difference. First operand 413 states and 638 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)