./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.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_loopvsstraightlinecode_50-1loop_file-81.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', '743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4'] 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_loopvsstraightlinecode_50-1loop_file-81.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 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:47:09,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:47:09,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:47:09,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:47:09,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:47:09,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:47:09,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:47:09,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:47:09,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:47:09,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:47:09,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:47:09,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:47:09,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:47:09,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:47:09,130 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:47:09,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:47:09,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:47:09,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:47:09,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:47:09,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:47:09,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:47:09,137 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 -> 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 [2024-11-07 08:47:09,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:47:09,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:47:09,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:47:09,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:47:09,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:47:09,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-11-07 08:47:10,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:47:10,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:47:10,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-11-07 08:47:10,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c564693b9/11d629b47e8540c4b74f5b62d33fb928/FLAG985f64111 [2024-11-07 08:47:11,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c564693b9/11d629b47e8540c4b74f5b62d33fb928 [2024-11-07 08:47:11,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:47:11,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:47:11,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:47:11,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:47:11,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:47:11,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df18576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11, skipping insertion in model container [2024-11-07 08:47:11,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:47:11,330 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_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-11-07 08:47:11,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:47:11,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:47:11,408 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-11-07 08:47:11,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:47:11,455 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:47:11,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11 WrapperNode [2024-11-07 08:47:11,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:47:11,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:47:11,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:47:11,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:47:11,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,511 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184 [2024-11-07 08:47:11,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:47:11,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:47:11,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:47:11,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:47:11,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,550 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 08:47:11,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:47:11,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:47:11,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:47:11,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:47:11,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (1/1) ... [2024-11-07 08:47:11,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:47:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:47:11,604 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 08:47:11,607 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 08:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:47:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:47:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:47:11,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:47:11,690 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:47:11,976 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-07 08:47:11,977 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:47:11,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:47:11,984 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:47:11,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:47:11 BoogieIcfgContainer [2024-11-07 08:47:11,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:47:11,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:47:11,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:47:11,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:47:11,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:47:11" (1/3) ... [2024-11-07 08:47:11,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5012015c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:47:11, skipping insertion in model container [2024-11-07 08:47:11,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:11" (2/3) ... [2024-11-07 08:47:11,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5012015c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:47:11, skipping insertion in model container [2024-11-07 08:47:11,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:47:11" (3/3) ... [2024-11-07 08:47:11,991 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-11-07 08:47:12,001 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:47:12,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:47:12,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:47:12,044 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;@2f3e3d29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:47:12,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:47:12,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 50 states have internal predecessors, (67), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:47:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:12,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:12,059 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:12,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:12,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:12,063 INFO L85 PathProgramCache]: Analyzing trace with hash -165450164, now seen corresponding path program 1 times [2024-11-07 08:47:12,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:12,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170432335] [2024-11-07 08:47:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170432335] [2024-11-07 08:47:12,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170432335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:12,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:12,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:47:12,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787685617] [2024-11-07 08:47:12,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:12,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:47:12,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:12,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:47:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:47:12,454 INFO L87 Difference]: Start difference. First operand has 78 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 50 states have internal predecessors, (67), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:12,475 INFO L93 Difference]: Finished difference Result 153 states and 261 transitions. [2024-11-07 08:47:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:47:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2024-11-07 08:47:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:12,509 INFO L225 Difference]: With dead ends: 153 [2024-11-07 08:47:12,509 INFO L226 Difference]: Without dead ends: 74 [2024-11-07 08:47:12,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 08:47:12,514 INFO L432 NwaCegarLoop]: 116 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, 116 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 08:47:12,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:47:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-07 08:47:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-07 08:47:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 46 states have internal predecessors, (60), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:47:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2024-11-07 08:47:12,543 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 163 [2024-11-07 08:47:12,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:12,543 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2024-11-07 08:47:12,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2024-11-07 08:47:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:12,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:12,546 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:12,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:47:12,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:12,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash 618594188, now seen corresponding path program 1 times [2024-11-07 08:47:12,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:12,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398678783] [2024-11-07 08:47:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:12,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:21,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:21,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:21,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398678783] [2024-11-07 08:47:21,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398678783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:21,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:21,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 08:47:21,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813889398] [2024-11-07 08:47:21,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:21,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:47:21,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:21,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:47:21,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:47:21,326 INFO L87 Difference]: Start difference. First operand 74 states and 112 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:23,978 INFO L93 Difference]: Finished difference Result 329 states and 488 transitions. [2024-11-07 08:47:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:47:23,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:23,984 INFO L225 Difference]: With dead ends: 329 [2024-11-07 08:47:23,985 INFO L226 Difference]: Without dead ends: 258 [2024-11-07 08:47:23,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:47:23,989 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 698 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:23,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 526 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 08:47:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-07 08:47:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 133. [2024-11-07 08:47:24,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 78 states have internal predecessors, (100), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:47:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 204 transitions. [2024-11-07 08:47:24,026 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 204 transitions. Word has length 163 [2024-11-07 08:47:24,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:24,027 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 204 transitions. [2024-11-07 08:47:24,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 204 transitions. [2024-11-07 08:47:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:24,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:24,031 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:24,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 08:47:24,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:24,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:24,033 INFO L85 PathProgramCache]: Analyzing trace with hash 225567178, now seen corresponding path program 1 times [2024-11-07 08:47:24,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:24,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711852135] [2024-11-07 08:47:24,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:24,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:24,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:24,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711852135] [2024-11-07 08:47:24,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711852135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:24,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:24,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 08:47:24,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507916652] [2024-11-07 08:47:24,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:24,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 08:47:24,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 08:47:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:47:24,243 INFO L87 Difference]: Start difference. First operand 133 states and 204 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:24,303 INFO L93 Difference]: Finished difference Result 240 states and 363 transitions. [2024-11-07 08:47:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 08:47:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:24,306 INFO L225 Difference]: With dead ends: 240 [2024-11-07 08:47:24,308 INFO L226 Difference]: Without dead ends: 169 [2024-11-07 08:47:24,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:47:24,309 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 43 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:24,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 327 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:47:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-07 08:47:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-07 08:47:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 107 states have internal predecessors, (137), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:24,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 249 transitions. [2024-11-07 08:47:24,336 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 249 transitions. Word has length 163 [2024-11-07 08:47:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:24,337 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 249 transitions. [2024-11-07 08:47:24,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 249 transitions. [2024-11-07 08:47:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:24,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:24,341 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:24,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 08:47:24,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:24,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1319658766, now seen corresponding path program 1 times [2024-11-07 08:47:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528193829] [2024-11-07 08:47:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:30,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:30,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528193829] [2024-11-07 08:47:30,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528193829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:30,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:30,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 08:47:30,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265833851] [2024-11-07 08:47:30,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:30,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:47:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:30,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:47:30,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:47:30,747 INFO L87 Difference]: Start difference. First operand 166 states and 249 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:32,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:32,934 INFO L93 Difference]: Finished difference Result 381 states and 555 transitions. [2024-11-07 08:47:32,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:47:32,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:32,938 INFO L225 Difference]: With dead ends: 381 [2024-11-07 08:47:32,938 INFO L226 Difference]: Without dead ends: 277 [2024-11-07 08:47:32,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:47:32,939 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 430 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:32,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 509 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 08:47:32,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-07 08:47:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 166. [2024-11-07 08:47:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 107 states have internal predecessors, (137), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 249 transitions. [2024-11-07 08:47:32,956 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 249 transitions. Word has length 163 [2024-11-07 08:47:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:32,957 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 249 transitions. [2024-11-07 08:47:32,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 249 transitions. [2024-11-07 08:47:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:32,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:32,958 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:32,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 08:47:32,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:32,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 876759626, now seen corresponding path program 1 times [2024-11-07 08:47:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:32,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755706564] [2024-11-07 08:47:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:33,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:33,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755706564] [2024-11-07 08:47:33,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755706564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:33,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 08:47:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188909424] [2024-11-07 08:47:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:33,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 08:47:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 08:47:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:47:33,892 INFO L87 Difference]: Start difference. First operand 166 states and 249 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:34,754 INFO L93 Difference]: Finished difference Result 403 states and 593 transitions. [2024-11-07 08:47:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 08:47:34,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2024-11-07 08:47:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:34,759 INFO L225 Difference]: With dead ends: 403 [2024-11-07 08:47:34,759 INFO L226 Difference]: Without dead ends: 299 [2024-11-07 08:47:34,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-07 08:47:34,763 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 316 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:34,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 553 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 08:47:34,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-07 08:47:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 170. [2024-11-07 08:47:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 110 states have (on average 1.290909090909091) internal successors, (142), 111 states have internal predecessors, (142), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 254 transitions. [2024-11-07 08:47:34,788 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 254 transitions. Word has length 163 [2024-11-07 08:47:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:34,789 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 254 transitions. [2024-11-07 08:47:34,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 254 transitions. [2024-11-07 08:47:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:34,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:34,790 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 08:47:34,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:34,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash -392523062, now seen corresponding path program 1 times [2024-11-07 08:47:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:34,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032889256] [2024-11-07 08:47:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:40,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032889256] [2024-11-07 08:47:40,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032889256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:40,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:40,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 08:47:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684787974] [2024-11-07 08:47:40,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:40,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 08:47:40,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:40,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 08:47:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:47:40,751 INFO L87 Difference]: Start difference. First operand 170 states and 254 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:42,086 INFO L93 Difference]: Finished difference Result 346 states and 503 transitions. [2024-11-07 08:47:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 08:47:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:42,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:42,091 INFO L225 Difference]: With dead ends: 346 [2024-11-07 08:47:42,091 INFO L226 Difference]: Without dead ends: 242 [2024-11-07 08:47:42,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-07 08:47:42,092 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 191 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:42,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 474 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 08:47:42,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-07 08:47:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 171. [2024-11-07 08:47:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 112 states have internal predecessors, (144), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2024-11-07 08:47:42,130 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 163 [2024-11-07 08:47:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:42,133 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2024-11-07 08:47:42,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:42,134 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2024-11-07 08:47:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:42,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:42,135 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:42,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 08:47:42,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:42,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash 308541516, now seen corresponding path program 1 times [2024-11-07 08:47:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:42,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465156427] [2024-11-07 08:47:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:42,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:48,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465156427] [2024-11-07 08:47:48,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465156427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:48,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:48,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 08:47:48,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223114861] [2024-11-07 08:47:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:48,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 08:47:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:48,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 08:47:48,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:47:48,488 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:49,018 INFO L93 Difference]: Finished difference Result 326 states and 478 transitions. [2024-11-07 08:47:49,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 08:47:49,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:49,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:49,021 INFO L225 Difference]: With dead ends: 326 [2024-11-07 08:47:49,021 INFO L226 Difference]: Without dead ends: 212 [2024-11-07 08:47:49,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-07 08:47:49,022 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 139 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:49,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 400 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:47:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-07 08:47:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 170. [2024-11-07 08:47:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 110 states have (on average 1.290909090909091) internal successors, (142), 111 states have internal predecessors, (142), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 254 transitions. [2024-11-07 08:47:49,041 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 254 transitions. Word has length 163 [2024-11-07 08:47:49,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:49,044 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 254 transitions. [2024-11-07 08:47:49,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 254 transitions. [2024-11-07 08:47:49,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:47:49,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:49,047 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:49,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 08:47:49,047 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:49,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash -134357624, now seen corresponding path program 1 times [2024-11-07 08:47:49,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:49,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961298195] [2024-11-07 08:47:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:49,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:49,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:49,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961298195] [2024-11-07 08:47:49,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961298195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:49,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 08:47:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959988182] [2024-11-07 08:47:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:49,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 08:47:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:49,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 08:47:49,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 08:47:49,452 INFO L87 Difference]: Start difference. First operand 170 states and 254 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:49,762 INFO L93 Difference]: Finished difference Result 339 states and 501 transitions. [2024-11-07 08:47:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 08:47:49,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:47:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:49,764 INFO L225 Difference]: With dead ends: 339 [2024-11-07 08:47:49,764 INFO L226 Difference]: Without dead ends: 225 [2024-11-07 08:47:49,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:47:49,765 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 103 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:49,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 445 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 08:47:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-07 08:47:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 170. [2024-11-07 08:47:49,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 110 states have (on average 1.290909090909091) internal successors, (142), 111 states have internal predecessors, (142), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-07 08:47:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 254 transitions. [2024-11-07 08:47:49,785 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 254 transitions. Word has length 163 [2024-11-07 08:47:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:49,785 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 254 transitions. [2024-11-07 08:47:49,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 254 transitions. [2024-11-07 08:47:49,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:47:49,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:49,787 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:49,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 08:47:49,787 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:49,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:49,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1824725714, now seen corresponding path program 1 times [2024-11-07 08:47:49,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:49,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172890977] [2024-11-07 08:47:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:49,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:49,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172890977] [2024-11-07 08:47:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172890977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:49,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:49,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 08:47:49,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896910831] [2024-11-07 08:47:49,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:49,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 08:47:49,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 08:47:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:47:49,925 INFO L87 Difference]: Start difference. First operand 170 states and 254 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:49,984 INFO L93 Difference]: Finished difference Result 310 states and 454 transitions. [2024-11-07 08:47:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 08:47:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:47:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:49,987 INFO L225 Difference]: With dead ends: 310 [2024-11-07 08:47:49,987 INFO L226 Difference]: Without dead ends: 196 [2024-11-07 08:47:49,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:47:49,989 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 63 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:49,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 320 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:47:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-07 08:47:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 164. [2024-11-07 08:47:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 107 states have internal predecessors, (138), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:47:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 242 transitions. [2024-11-07 08:47:50,009 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 242 transitions. Word has length 164 [2024-11-07 08:47:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:50,010 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 242 transitions. [2024-11-07 08:47:50,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:47:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 242 transitions. [2024-11-07 08:47:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:47:50,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:50,012 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:50,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 08:47:50,012 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1431698704, now seen corresponding path program 1 times [2024-11-07 08:47:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057442649] [2024-11-07 08:47:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:47:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:47:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:47:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:47:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:47:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:47:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:47:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:47:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:47:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:47:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:47:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:47:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:47:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:47:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:47:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:47:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:47:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:47:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:47:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:47:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:47:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:47:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:47:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:47:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:47:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:47:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:47:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:47:53,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:47:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057442649] [2024-11-07 08:47:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057442649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:47:53,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:47:53,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 08:47:53,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016268286] [2024-11-07 08:47:53,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:47:53,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 08:47:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:47:53,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 08:47:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-07 08:47:53,850 INFO L87 Difference]: Start difference. First operand 164 states and 242 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:55,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:47:55,020 INFO L93 Difference]: Finished difference Result 370 states and 532 transitions. [2024-11-07 08:47:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:47:55,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-11-07 08:47:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:47:55,025 INFO L225 Difference]: With dead ends: 370 [2024-11-07 08:47:55,025 INFO L226 Difference]: Without dead ends: 269 [2024-11-07 08:47:55,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2024-11-07 08:47:55,026 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 317 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 08:47:55,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 585 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 08:47:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-07 08:47:55,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 174. [2024-11-07 08:47:55,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 117 states have internal predecessors, (152), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:47:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 256 transitions. [2024-11-07 08:47:55,045 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 256 transitions. Word has length 164 [2024-11-07 08:47:55,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:47:55,045 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 256 transitions. [2024-11-07 08:47:55,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:47:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 256 transitions. [2024-11-07 08:47:55,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:47:55,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:47:55,047 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:55,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 08:47:55,047 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:47:55,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:47:55,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2132763282, now seen corresponding path program 1 times [2024-11-07 08:47:55,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:47:55,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945503465] [2024-11-07 08:47:55,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:47:55,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:47:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:00,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:00,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945503465] [2024-11-07 08:48:00,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945503465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:00,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:00,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 08:48:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966080604] [2024-11-07 08:48:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 08:48:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 08:48:00,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:48:00,459 INFO L87 Difference]: Start difference. First operand 174 states and 256 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:01,267 INFO L93 Difference]: Finished difference Result 319 states and 463 transitions. [2024-11-07 08:48:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 08:48:01,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:01,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:01,269 INFO L225 Difference]: With dead ends: 319 [2024-11-07 08:48:01,269 INFO L226 Difference]: Without dead ends: 218 [2024-11-07 08:48:01,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-07 08:48:01,270 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 89 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:01,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 525 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:48:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-07 08:48:01,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 172. [2024-11-07 08:48:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 115 states have internal predecessors, (150), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 254 transitions. [2024-11-07 08:48:01,287 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 254 transitions. Word has length 164 [2024-11-07 08:48:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:01,287 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 254 transitions. [2024-11-07 08:48:01,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 254 transitions. [2024-11-07 08:48:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:01,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:01,288 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:01,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 08:48:01,288 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:01,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1190377904, now seen corresponding path program 1 times [2024-11-07 08:48:01,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:01,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94978183] [2024-11-07 08:48:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:01,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:05,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94978183] [2024-11-07 08:48:05,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94978183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:05,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:05,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 08:48:05,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011070679] [2024-11-07 08:48:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:05,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:48:05,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:48:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:48:05,608 INFO L87 Difference]: Start difference. First operand 172 states and 254 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:07,205 INFO L93 Difference]: Finished difference Result 433 states and 620 transitions. [2024-11-07 08:48:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:48:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:07,208 INFO L225 Difference]: With dead ends: 433 [2024-11-07 08:48:07,208 INFO L226 Difference]: Without dead ends: 324 [2024-11-07 08:48:07,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:48:07,209 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 506 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:07,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 510 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 08:48:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-07 08:48:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 176. [2024-11-07 08:48:07,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 119 states have internal predecessors, (156), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 260 transitions. [2024-11-07 08:48:07,225 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 260 transitions. Word has length 164 [2024-11-07 08:48:07,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:07,226 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 260 transitions. [2024-11-07 08:48:07,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 260 transitions. [2024-11-07 08:48:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:07,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:07,229 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:07,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 08:48:07,229 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:07,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1583404914, now seen corresponding path program 1 times [2024-11-07 08:48:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24290038] [2024-11-07 08:48:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:07,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:11,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:11,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24290038] [2024-11-07 08:48:11,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24290038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:11,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:11,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 08:48:11,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166385137] [2024-11-07 08:48:11,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:11,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:48:11,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:11,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:48:11,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:48:11,174 INFO L87 Difference]: Start difference. First operand 176 states and 260 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:12,078 INFO L93 Difference]: Finished difference Result 411 states and 590 transitions. [2024-11-07 08:48:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:48:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:12,081 INFO L225 Difference]: With dead ends: 411 [2024-11-07 08:48:12,081 INFO L226 Difference]: Without dead ends: 302 [2024-11-07 08:48:12,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-07 08:48:12,082 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 271 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:12,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 591 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 08:48:12,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-07 08:48:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 176. [2024-11-07 08:48:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 119 states have internal predecessors, (156), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:12,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 260 transitions. [2024-11-07 08:48:12,098 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 260 transitions. Word has length 164 [2024-11-07 08:48:12,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:12,098 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 260 transitions. [2024-11-07 08:48:12,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:12,098 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 260 transitions. [2024-11-07 08:48:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:12,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:12,104 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:12,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 08:48:12,104 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:12,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash -489313326, now seen corresponding path program 1 times [2024-11-07 08:48:12,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:12,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485108223] [2024-11-07 08:48:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:15,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485108223] [2024-11-07 08:48:15,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485108223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:15,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:15,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 08:48:15,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712841061] [2024-11-07 08:48:15,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:15,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:48:15,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:48:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:48:15,649 INFO L87 Difference]: Start difference. First operand 176 states and 260 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:16,805 INFO L93 Difference]: Finished difference Result 406 states and 584 transitions. [2024-11-07 08:48:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:48:16,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:16,809 INFO L225 Difference]: With dead ends: 406 [2024-11-07 08:48:16,809 INFO L226 Difference]: Without dead ends: 297 [2024-11-07 08:48:16,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:48:16,810 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 430 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:16,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 518 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 08:48:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-07 08:48:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 177. [2024-11-07 08:48:16,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 120 states have (on average 1.3166666666666667) internal successors, (158), 120 states have internal predecessors, (158), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 262 transitions. [2024-11-07 08:48:16,834 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 262 transitions. Word has length 164 [2024-11-07 08:48:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:16,836 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 262 transitions. [2024-11-07 08:48:16,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 262 transitions. [2024-11-07 08:48:16,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:16,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:16,837 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 08:48:16,837 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:16,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -882340336, now seen corresponding path program 1 times [2024-11-07 08:48:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410991496] [2024-11-07 08:48:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:21,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410991496] [2024-11-07 08:48:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410991496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 08:48:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734581043] [2024-11-07 08:48:21,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:21,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 08:48:21,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 08:48:21,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-07 08:48:21,800 INFO L87 Difference]: Start difference. First operand 177 states and 262 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:48:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:23,152 INFO L93 Difference]: Finished difference Result 393 states and 566 transitions. [2024-11-07 08:48:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:48:23,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2024-11-07 08:48:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:23,155 INFO L225 Difference]: With dead ends: 393 [2024-11-07 08:48:23,155 INFO L226 Difference]: Without dead ends: 284 [2024-11-07 08:48:23,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:48:23,155 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 250 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:23,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 678 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 08:48:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-07 08:48:23,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 176. [2024-11-07 08:48:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 119 states have (on average 1.3109243697478992) internal successors, (156), 119 states have internal predecessors, (156), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 260 transitions. [2024-11-07 08:48:23,173 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 260 transitions. Word has length 164 [2024-11-07 08:48:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:23,173 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 260 transitions. [2024-11-07 08:48:23,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:48:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 260 transitions. [2024-11-07 08:48:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:23,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:23,174 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:23,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 08:48:23,175 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:23,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2093472142, now seen corresponding path program 1 times [2024-11-07 08:48:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:23,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214666194] [2024-11-07 08:48:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:27,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:27,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214666194] [2024-11-07 08:48:27,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214666194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:27,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:27,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 08:48:27,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799091013] [2024-11-07 08:48:27,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:27,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 08:48:27,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:27,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 08:48:27,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:48:27,931 INFO L87 Difference]: Start difference. First operand 176 states and 260 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:28,495 INFO L93 Difference]: Finished difference Result 400 states and 577 transitions. [2024-11-07 08:48:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 08:48:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:28,497 INFO L225 Difference]: With dead ends: 400 [2024-11-07 08:48:28,497 INFO L226 Difference]: Without dead ends: 291 [2024-11-07 08:48:28,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-07 08:48:28,499 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 180 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:28,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 469 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:48:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-07 08:48:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 178. [2024-11-07 08:48:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 121 states have (on average 1.322314049586777) internal successors, (160), 121 states have internal predecessors, (160), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 264 transitions. [2024-11-07 08:48:28,517 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 264 transitions. Word has length 164 [2024-11-07 08:48:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:28,518 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 264 transitions. [2024-11-07 08:48:28,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 264 transitions. [2024-11-07 08:48:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:28,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:28,519 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:28,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 08:48:28,519 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:28,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1700445132, now seen corresponding path program 1 times [2024-11-07 08:48:28,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217456049] [2024-11-07 08:48:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:28,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:28,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217456049] [2024-11-07 08:48:28,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217456049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:28,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:28,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 08:48:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399293552] [2024-11-07 08:48:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:28,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 08:48:28,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 08:48:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 08:48:28,950 INFO L87 Difference]: Start difference. First operand 178 states and 264 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:29,438 INFO L93 Difference]: Finished difference Result 372 states and 540 transitions. [2024-11-07 08:48:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 08:48:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:29,442 INFO L225 Difference]: With dead ends: 372 [2024-11-07 08:48:29,442 INFO L226 Difference]: Without dead ends: 261 [2024-11-07 08:48:29,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-07 08:48:29,443 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 188 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:29,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 426 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:48:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-07 08:48:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 179. [2024-11-07 08:48:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 122 states have internal predecessors, (162), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 266 transitions. [2024-11-07 08:48:29,479 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 266 transitions. Word has length 164 [2024-11-07 08:48:29,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:29,479 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 266 transitions. [2024-11-07 08:48:29,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2024-11-07 08:48:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 08:48:29,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:29,480 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:29,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 08:48:29,480 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:29,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:29,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1500430576, now seen corresponding path program 1 times [2024-11-07 08:48:29,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:29,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925133444] [2024-11-07 08:48:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:29,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:48:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:48:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:48:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:48:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:48:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:48:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:48:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:48:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:48:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:48:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:48:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:48:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:48:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:48:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:48:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:48:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:48:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:48:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:48:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:48:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:48:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:48:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:48:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:48:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:48:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:48:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:48:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:48:33,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:48:33,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925133444] [2024-11-07 08:48:33,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925133444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:48:33,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:48:33,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 08:48:33,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445630481] [2024-11-07 08:48:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:48:33,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 08:48:33,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:48:33,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 08:48:33,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 08:48:33,716 INFO L87 Difference]: Start difference. First operand 179 states and 266 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:48:34,504 INFO L93 Difference]: Finished difference Result 362 states and 526 transitions. [2024-11-07 08:48:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 08:48:34,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2024-11-07 08:48:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:48:34,510 INFO L225 Difference]: With dead ends: 362 [2024-11-07 08:48:34,510 INFO L226 Difference]: Without dead ends: 251 [2024-11-07 08:48:34,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-07 08:48:34,511 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 204 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:48:34,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 408 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:48:34,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-07 08:48:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 176. [2024-11-07 08:48:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 119 states have internal predecessors, (158), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-07 08:48:34,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 262 transitions. [2024-11-07 08:48:34,527 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 262 transitions. Word has length 164 [2024-11-07 08:48:34,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:48:34,528 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 262 transitions. [2024-11-07 08:48:34,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:48:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 262 transitions. [2024-11-07 08:48:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-07 08:48:34,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:48:34,529 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:34,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 08:48:34,529 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:48:34,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:48:34,529 INFO L85 PathProgramCache]: Analyzing trace with hash 929375975, now seen corresponding path program 1 times [2024-11-07 08:48:34,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:48:34,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800790318] [2024-11-07 08:48:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:48:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:48:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat