./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.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_100-while_file-63.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', 'e08b130d986262ceb0772f034a60f5b23796cc6f800ada70e6af5834a62fdc07'] 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_100-while_file-63.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 e08b130d986262ceb0772f034a60f5b23796cc6f800ada70e6af5834a62fdc07 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:12:31,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:12:31,311 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:12:31,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:12:31,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:12:31,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:12:31,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:12:31,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:12:31,339 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:12:31,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:12:31,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:12:31,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:12:31,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:12:31,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:12:31,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:12:31,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:12:31,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:12:31,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:12:31,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:12:31,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:12:31,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:12:31,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:12:31,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:12:31,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:12:31,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:12:31,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:12:31,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:12:31,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:12:31,344 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 -> e08b130d986262ceb0772f034a60f5b23796cc6f800ada70e6af5834a62fdc07 [2024-11-07 08:12:31,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:12:31,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:12:31,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:12:31,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:12:31,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:12:31,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.i [2024-11-07 08:12:32,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:12:32,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:12:32,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-63.i [2024-11-07 08:12:32,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93ecb4c04/98259215b4364abd9013ec37ce0619c8/FLAG94e0c5d99 [2024-11-07 08:12:32,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93ecb4c04/98259215b4364abd9013ec37ce0619c8 [2024-11-07 08:12:32,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:12:32,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:12:32,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:12:32,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:12:32,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:12:32,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:32" (1/1) ... [2024-11-07 08:12:32,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cc57ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:32, skipping insertion in model container [2024-11-07 08:12:32,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:12:32" (1/1) ... [2024-11-07 08:12:32,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:12:33,080 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_100-while_file-63.i[916,929] [2024-11-07 08:12:33,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:12:33,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:12:33,164 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_100-while_file-63.i[916,929] [2024-11-07 08:12:33,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:12:33,204 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:12:33,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33 WrapperNode [2024-11-07 08:12:33,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:12:33,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:12:33,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:12:33,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:12:33,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,255 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 212 [2024-11-07 08:12:33,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:12:33,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:12:33,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:12:33,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:12:33,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,291 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 08:12:33,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:12:33,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:12:33,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:12:33,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:12:33,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (1/1) ... [2024-11-07 08:12:33,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:12:33,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:12:33,351 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 08:12:33,356 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 08:12:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:12:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:12:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:12:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:12:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:12:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:12:33,444 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:12:33,446 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:12:33,836 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-07 08:12:33,837 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:12:33,845 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:12:33,846 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:12:33,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:33 BoogieIcfgContainer [2024-11-07 08:12:33,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:12:33,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:12:33,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:12:33,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:12:33,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:12:32" (1/3) ... [2024-11-07 08:12:33,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d49552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:33, skipping insertion in model container [2024-11-07 08:12:33,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:12:33" (2/3) ... [2024-11-07 08:12:33,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d49552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:12:33, skipping insertion in model container [2024-11-07 08:12:33,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:12:33" (3/3) ... [2024-11-07 08:12:33,854 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-63.i [2024-11-07 08:12:33,866 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:12:33,866 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:12:33,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:12:33,918 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;@487ec993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:12:33,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:12:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 67 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 08:12:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:33,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:33,931 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:33,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:33,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1132356308, now seen corresponding path program 1 times [2024-11-07 08:12:33,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:33,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688791718] [2024-11-07 08:12:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:34,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:34,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688791718] [2024-11-07 08:12:34,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688791718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:34,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:34,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 08:12:34,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587353664] [2024-11-07 08:12:34,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:34,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 08:12:34,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:34,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 08:12:34,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 08:12:34,403 INFO L87 Difference]: Start difference. First operand has 89 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 67 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:34,435 INFO L93 Difference]: Finished difference Result 170 states and 290 transitions. [2024-11-07 08:12:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 08:12:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:34,442 INFO L225 Difference]: With dead ends: 170 [2024-11-07 08:12:34,442 INFO L226 Difference]: Without dead ends: 84 [2024-11-07 08:12:34,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 08:12:34,445 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:34,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:12:34,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-07 08:12:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-07 08:12:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 62 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 08:12:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 126 transitions. [2024-11-07 08:12:34,475 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 126 transitions. Word has length 143 [2024-11-07 08:12:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:34,476 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 126 transitions. [2024-11-07 08:12:34,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 126 transitions. [2024-11-07 08:12:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:34,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:34,479 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:34,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:12:34,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:34,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash -301696116, now seen corresponding path program 1 times [2024-11-07 08:12:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021774517] [2024-11-07 08:12:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:34,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:34,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021774517] [2024-11-07 08:12:34,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021774517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:34,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:34,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 08:12:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890357837] [2024-11-07 08:12:34,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:34,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 08:12:34,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:34,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 08:12:34,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 08:12:34,712 INFO L87 Difference]: Start difference. First operand 84 states and 126 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:34,773 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2024-11-07 08:12:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 08:12:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:34,776 INFO L225 Difference]: With dead ends: 216 [2024-11-07 08:12:34,778 INFO L226 Difference]: Without dead ends: 135 [2024-11-07 08:12:34,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 08:12:34,779 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 74 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:34,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 231 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:12:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-07 08:12:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2024-11-07 08:12:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.386138613861386) internal successors, (140), 102 states have internal predecessors, (140), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-07 08:12:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 196 transitions. [2024-11-07 08:12:34,802 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 196 transitions. Word has length 143 [2024-11-07 08:12:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:34,802 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 196 transitions. [2024-11-07 08:12:34,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 196 transitions. [2024-11-07 08:12:34,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:34,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:34,806 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:34,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 08:12:34,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:34,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:34,807 INFO L85 PathProgramCache]: Analyzing trace with hash 151674570, now seen corresponding path program 1 times [2024-11-07 08:12:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:34,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194293946] [2024-11-07 08:12:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:34,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194293946] [2024-11-07 08:12:35,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194293946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:35,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 08:12:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036335527] [2024-11-07 08:12:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:35,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 08:12:35,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 08:12:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:12:35,276 INFO L87 Difference]: Start difference. First operand 132 states and 196 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:35,417 INFO L93 Difference]: Finished difference Result 379 states and 563 transitions. [2024-11-07 08:12:35,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 08:12:35,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:35,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:35,424 INFO L225 Difference]: With dead ends: 379 [2024-11-07 08:12:35,424 INFO L226 Difference]: Without dead ends: 250 [2024-11-07 08:12:35,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:12:35,427 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 92 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:35,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 350 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 08:12:35,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-07 08:12:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 184. [2024-11-07 08:12:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 132 states have internal predecessors, (176), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 08:12:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 272 transitions. [2024-11-07 08:12:35,449 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 272 transitions. Word has length 143 [2024-11-07 08:12:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:35,450 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 272 transitions. [2024-11-07 08:12:35,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 272 transitions. [2024-11-07 08:12:35,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:35,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:35,454 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:35,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 08:12:35,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:35,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:35,455 INFO L85 PathProgramCache]: Analyzing trace with hash 17661064, now seen corresponding path program 1 times [2024-11-07 08:12:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:35,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617462526] [2024-11-07 08:12:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:35,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:43,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:43,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:43,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:43,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:43,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617462526] [2024-11-07 08:12:43,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617462526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:43,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:43,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 08:12:43,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753352758] [2024-11-07 08:12:43,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:43,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 08:12:43,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:43,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 08:12:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-07 08:12:43,014 INFO L87 Difference]: Start difference. First operand 184 states and 272 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:44,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:44,945 INFO L93 Difference]: Finished difference Result 765 states and 1107 transitions. [2024-11-07 08:12:44,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 08:12:44,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:44,949 INFO L225 Difference]: With dead ends: 765 [2024-11-07 08:12:44,949 INFO L226 Difference]: Without dead ends: 636 [2024-11-07 08:12:44,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2024-11-07 08:12:44,953 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 744 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:44,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 846 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 08:12:44,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-07 08:12:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 226. [2024-11-07 08:12:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 173 states have (on average 1.369942196531792) internal successors, (237), 174 states have internal predecessors, (237), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 08:12:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 333 transitions. [2024-11-07 08:12:44,980 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 333 transitions. Word has length 143 [2024-11-07 08:12:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:44,980 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 333 transitions. [2024-11-07 08:12:44,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 333 transitions. [2024-11-07 08:12:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:44,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:44,982 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:44,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 08:12:44,982 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:44,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash -791685562, now seen corresponding path program 1 times [2024-11-07 08:12:44,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:44,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312069388] [2024-11-07 08:12:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:44,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:50,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312069388] [2024-11-07 08:12:50,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312069388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:50,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:50,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 08:12:50,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543132554] [2024-11-07 08:12:50,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:50,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 08:12:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 08:12:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-07 08:12:50,834 INFO L87 Difference]: Start difference. First operand 226 states and 333 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:51,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:51,952 INFO L93 Difference]: Finished difference Result 629 states and 913 transitions. [2024-11-07 08:12:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 08:12:51,953 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:51,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:51,955 INFO L225 Difference]: With dead ends: 629 [2024-11-07 08:12:51,955 INFO L226 Difference]: Without dead ends: 458 [2024-11-07 08:12:51,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-07 08:12:51,958 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 545 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:51,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 631 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 08:12:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-07 08:12:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 263. [2024-11-07 08:12:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 210 states have (on average 1.3904761904761904) internal successors, (292), 211 states have internal predecessors, (292), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 08:12:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 388 transitions. [2024-11-07 08:12:51,982 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 388 transitions. Word has length 143 [2024-11-07 08:12:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:51,983 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 388 transitions. [2024-11-07 08:12:51,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 388 transitions. [2024-11-07 08:12:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:51,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:51,984 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:51,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 08:12:51,984 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:51,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 440362890, now seen corresponding path program 1 times [2024-11-07 08:12:51,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:51,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301633037] [2024-11-07 08:12:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:52,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301633037] [2024-11-07 08:12:52,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301633037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:52,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:52,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 08:12:52,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992128123] [2024-11-07 08:12:52,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:52,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 08:12:52,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 08:12:52,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:12:52,125 INFO L87 Difference]: Start difference. First operand 263 states and 388 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:52,235 INFO L93 Difference]: Finished difference Result 559 states and 822 transitions. [2024-11-07 08:12:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 08:12:52,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:52,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:52,240 INFO L225 Difference]: With dead ends: 559 [2024-11-07 08:12:52,240 INFO L226 Difference]: Without dead ends: 352 [2024-11-07 08:12:52,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:12:52,243 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 155 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:52,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 317 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 08:12:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-07 08:12:52,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 251. [2024-11-07 08:12:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 198 states have (on average 1.3737373737373737) internal successors, (272), 199 states have internal predecessors, (272), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 08:12:52,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 368 transitions. [2024-11-07 08:12:52,256 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 368 transitions. Word has length 143 [2024-11-07 08:12:52,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:52,256 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 368 transitions. [2024-11-07 08:12:52,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 368 transitions. [2024-11-07 08:12:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:52,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:52,258 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:52,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 08:12:52,258 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:52,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:52,258 INFO L85 PathProgramCache]: Analyzing trace with hash 804640654, now seen corresponding path program 1 times [2024-11-07 08:12:52,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:52,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929565332] [2024-11-07 08:12:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:52,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:52,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:52,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929565332] [2024-11-07 08:12:52,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929565332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:52,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:52,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:12:52,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041662389] [2024-11-07 08:12:52,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:52,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:12:52,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:12:52,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:12:52,428 INFO L87 Difference]: Start difference. First operand 251 states and 368 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:52,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:52,602 INFO L93 Difference]: Finished difference Result 526 states and 771 transitions. [2024-11-07 08:12:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:12:52,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:52,605 INFO L225 Difference]: With dead ends: 526 [2024-11-07 08:12:52,605 INFO L226 Difference]: Without dead ends: 331 [2024-11-07 08:12:52,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 08:12:52,606 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 173 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:52,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 503 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 08:12:52,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-07 08:12:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 316. [2024-11-07 08:12:52,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.3568464730290457) internal successors, (327), 243 states have internal predecessors, (327), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 08:12:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 463 transitions. [2024-11-07 08:12:52,628 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 463 transitions. Word has length 143 [2024-11-07 08:12:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:52,629 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 463 transitions. [2024-11-07 08:12:52,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 463 transitions. [2024-11-07 08:12:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 08:12:52,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:52,630 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:52,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 08:12:52,630 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:52,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:52,631 INFO L85 PathProgramCache]: Analyzing trace with hash -4705972, now seen corresponding path program 1 times [2024-11-07 08:12:52,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:52,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295206099] [2024-11-07 08:12:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:52,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:55,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295206099] [2024-11-07 08:12:55,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295206099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:55,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:55,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 08:12:55,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212470982] [2024-11-07 08:12:55,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:55,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 08:12:55,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 08:12:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-07 08:12:55,869 INFO L87 Difference]: Start difference. First operand 316 states and 463 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:12:56,901 INFO L93 Difference]: Finished difference Result 837 states and 1211 transitions. [2024-11-07 08:12:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 08:12:56,902 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-07 08:12:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:12:56,904 INFO L225 Difference]: With dead ends: 837 [2024-11-07 08:12:56,904 INFO L226 Difference]: Without dead ends: 577 [2024-11-07 08:12:56,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-07 08:12:56,905 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 533 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 08:12:56,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 727 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 08:12:56,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-07 08:12:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 356. [2024-11-07 08:12:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 281 states have (on average 1.3629893238434163) internal successors, (383), 283 states have internal predecessors, (383), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 08:12:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 519 transitions. [2024-11-07 08:12:56,928 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 519 transitions. Word has length 143 [2024-11-07 08:12:56,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:12:56,929 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 519 transitions. [2024-11-07 08:12:56,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:12:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 519 transitions. [2024-11-07 08:12:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:12:56,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:12:56,930 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:56,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 08:12:56,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:12:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:12:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1149682895, now seen corresponding path program 1 times [2024-11-07 08:12:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:12:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348217753] [2024-11-07 08:12:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:12:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:12:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:12:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:12:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:12:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:12:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:12:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:12:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:12:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:12:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:12:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:12:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:12:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:12:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:12:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:12:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:12:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:12:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:12:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:12:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:12:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:12:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:12:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:12:59,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:12:59,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348217753] [2024-11-07 08:12:59,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348217753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:12:59,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:12:59,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 08:12:59,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577140370] [2024-11-07 08:12:59,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:12:59,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 08:12:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:12:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 08:12:59,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-07 08:12:59,904 INFO L87 Difference]: Start difference. First operand 356 states and 519 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:01,048 INFO L93 Difference]: Finished difference Result 948 states and 1377 transitions. [2024-11-07 08:13:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 08:13:01,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:01,052 INFO L225 Difference]: With dead ends: 948 [2024-11-07 08:13:01,052 INFO L226 Difference]: Without dead ends: 688 [2024-11-07 08:13:01,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2024-11-07 08:13:01,054 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 672 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:01,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 634 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 08:13:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-07 08:13:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 342. [2024-11-07 08:13:01,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 267 states have (on average 1.3632958801498127) internal successors, (364), 269 states have internal predecessors, (364), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 08:13:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 500 transitions. [2024-11-07 08:13:01,080 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 500 transitions. Word has length 144 [2024-11-07 08:13:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:01,082 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 500 transitions. [2024-11-07 08:13:01,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 500 transitions. [2024-11-07 08:13:01,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:01,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:01,086 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:01,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 08:13:01,086 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:01,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1399488444, now seen corresponding path program 1 times [2024-11-07 08:13:01,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:01,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141186759] [2024-11-07 08:13:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:01,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141186759] [2024-11-07 08:13:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141186759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:01,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 08:13:01,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557301891] [2024-11-07 08:13:01,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:01,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 08:13:01,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 08:13:01,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:13:01,194 INFO L87 Difference]: Start difference. First operand 342 states and 500 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:01,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:01,233 INFO L93 Difference]: Finished difference Result 776 states and 1130 transitions. [2024-11-07 08:13:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 08:13:01,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:01,237 INFO L225 Difference]: With dead ends: 776 [2024-11-07 08:13:01,238 INFO L226 Difference]: Without dead ends: 530 [2024-11-07 08:13:01,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 08:13:01,239 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 63 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:01,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 338 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:13:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-07 08:13:01,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 525. [2024-11-07 08:13:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 428 states have (on average 1.3621495327102804) internal successors, (583), 433 states have internal predecessors, (583), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-07 08:13:01,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 755 transitions. [2024-11-07 08:13:01,269 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 755 transitions. Word has length 144 [2024-11-07 08:13:01,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:01,270 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 755 transitions. [2024-11-07 08:13:01,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:01,270 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 755 transitions. [2024-11-07 08:13:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:01,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:01,271 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:01,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 08:13:01,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:01,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2063655155, now seen corresponding path program 1 times [2024-11-07 08:13:01,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:01,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041202099] [2024-11-07 08:13:01,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:01,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041202099] [2024-11-07 08:13:04,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041202099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:04,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:04,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 08:13:04,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685738923] [2024-11-07 08:13:04,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:04,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 08:13:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 08:13:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 08:13:04,229 INFO L87 Difference]: Start difference. First operand 525 states and 755 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:05,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:05,169 INFO L93 Difference]: Finished difference Result 1359 states and 1945 transitions. [2024-11-07 08:13:05,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 08:13:05,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:05,173 INFO L225 Difference]: With dead ends: 1359 [2024-11-07 08:13:05,174 INFO L226 Difference]: Without dead ends: 958 [2024-11-07 08:13:05,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-07 08:13:05,176 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 485 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:05,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 612 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 08:13:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-07 08:13:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 507. [2024-11-07 08:13:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 410 states have (on average 1.3585365853658538) internal successors, (557), 415 states have internal predecessors, (557), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-07 08:13:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 729 transitions. [2024-11-07 08:13:05,204 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 729 transitions. Word has length 144 [2024-11-07 08:13:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:05,204 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 729 transitions. [2024-11-07 08:13:05,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 729 transitions. [2024-11-07 08:13:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:05,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:05,206 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:05,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 08:13:05,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:05,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:05,207 INFO L85 PathProgramCache]: Analyzing trace with hash -464954213, now seen corresponding path program 1 times [2024-11-07 08:13:05,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:05,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478070534] [2024-11-07 08:13:05,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:05,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:05,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:05,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478070534] [2024-11-07 08:13:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478070534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 08:13:05,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807381954] [2024-11-07 08:13:05,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:05,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 08:13:05,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:05,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 08:13:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 08:13:05,871 INFO L87 Difference]: Start difference. First operand 507 states and 729 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:06,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:06,746 INFO L93 Difference]: Finished difference Result 1679 states and 2364 transitions. [2024-11-07 08:13:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 08:13:06,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:06,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:06,750 INFO L225 Difference]: With dead ends: 1679 [2024-11-07 08:13:06,750 INFO L226 Difference]: Without dead ends: 1228 [2024-11-07 08:13:06,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2024-11-07 08:13:06,751 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 382 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:06,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1112 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 08:13:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-07 08:13:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 896. [2024-11-07 08:13:06,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 787 states have (on average 1.395171537484117) internal successors, (1098), 796 states have internal predecessors, (1098), 94 states have call successors, (94), 14 states have call predecessors, (94), 14 states have return successors, (94), 85 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-07 08:13:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1286 transitions. [2024-11-07 08:13:06,793 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1286 transitions. Word has length 144 [2024-11-07 08:13:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:06,793 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1286 transitions. [2024-11-07 08:13:06,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1286 transitions. [2024-11-07 08:13:06,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:06,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:06,794 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:06,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 08:13:06,795 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:06,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash 402816475, now seen corresponding path program 1 times [2024-11-07 08:13:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966283745] [2024-11-07 08:13:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:06,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:06,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966283745] [2024-11-07 08:13:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966283745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:06,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:13:06,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823452567] [2024-11-07 08:13:06,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:06,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:13:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:13:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:13:06,969 INFO L87 Difference]: Start difference. First operand 896 states and 1286 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:07,124 INFO L93 Difference]: Finished difference Result 1596 states and 2295 transitions. [2024-11-07 08:13:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:13:07,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:07,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:07,131 INFO L225 Difference]: With dead ends: 1596 [2024-11-07 08:13:07,131 INFO L226 Difference]: Without dead ends: 1091 [2024-11-07 08:13:07,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 08:13:07,133 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 205 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:07,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 497 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 08:13:07,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2024-11-07 08:13:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 702. [2024-11-07 08:13:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 643 states have (on average 1.405909797822706) internal successors, (904), 646 states have internal predecessors, (904), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-07 08:13:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1004 transitions. [2024-11-07 08:13:07,168 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1004 transitions. Word has length 144 [2024-11-07 08:13:07,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:07,168 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1004 transitions. [2024-11-07 08:13:07,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1004 transitions. [2024-11-07 08:13:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:07,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:07,170 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:07,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 08:13:07,170 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:07,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -406530151, now seen corresponding path program 1 times [2024-11-07 08:13:07,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:07,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088403048] [2024-11-07 08:13:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:09,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:09,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088403048] [2024-11-07 08:13:09,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088403048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:09,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:09,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 08:13:09,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966403429] [2024-11-07 08:13:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:09,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 08:13:09,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 08:13:09,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-07 08:13:09,889 INFO L87 Difference]: Start difference. First operand 702 states and 1004 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:11,196 INFO L93 Difference]: Finished difference Result 1151 states and 1615 transitions. [2024-11-07 08:13:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 08:13:11,197 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:11,200 INFO L225 Difference]: With dead ends: 1151 [2024-11-07 08:13:11,200 INFO L226 Difference]: Without dead ends: 830 [2024-11-07 08:13:11,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-07 08:13:11,201 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 446 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:11,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 930 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 08:13:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-07 08:13:11,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 720. [2024-11-07 08:13:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 654 states have (on average 1.3990825688073394) internal successors, (915), 657 states have internal predecessors, (915), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 08:13:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1023 transitions. [2024-11-07 08:13:11,247 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1023 transitions. Word has length 144 [2024-11-07 08:13:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:11,247 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1023 transitions. [2024-11-07 08:13:11,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1023 transitions. [2024-11-07 08:13:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 08:13:11,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:11,249 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:11,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 08:13:11,249 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:11,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 767094239, now seen corresponding path program 1 times [2024-11-07 08:13:11,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:11,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299872401] [2024-11-07 08:13:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:11,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299872401] [2024-11-07 08:13:11,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299872401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:13:11,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280246533] [2024-11-07 08:13:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:11,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:13:11,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:13:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:13:11,434 INFO L87 Difference]: Start difference. First operand 720 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:11,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:11,612 INFO L93 Difference]: Finished difference Result 1534 states and 2186 transitions. [2024-11-07 08:13:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:13:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-07 08:13:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:11,617 INFO L225 Difference]: With dead ends: 1534 [2024-11-07 08:13:11,617 INFO L226 Difference]: Without dead ends: 1176 [2024-11-07 08:13:11,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 08:13:11,620 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 241 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:11,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 499 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 08:13:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-07 08:13:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 719. [2024-11-07 08:13:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 653 states have (on average 1.3996937212863707) internal successors, (914), 656 states have internal predecessors, (914), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 08:13:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1022 transitions. [2024-11-07 08:13:11,652 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1022 transitions. Word has length 144 [2024-11-07 08:13:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:11,653 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 1022 transitions. [2024-11-07 08:13:11,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1022 transitions. [2024-11-07 08:13:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 08:13:11,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:11,654 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:11,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 08:13:11,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:11,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:11,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1135268803, now seen corresponding path program 1 times [2024-11-07 08:13:11,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:11,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820158608] [2024-11-07 08:13:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:11,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:13:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:13:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:13:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:13:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:13:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:13:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:13:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:13:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:13:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:13:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:13:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:13:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:13:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:13:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:13:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:13:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:13:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:13:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:13:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 08:13:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:13:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 08:13:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:13:38,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820158608] [2024-11-07 08:13:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820158608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:13:38,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:13:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-07 08:13:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949462567] [2024-11-07 08:13:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:13:38,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 08:13:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:13:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 08:13:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-07 08:13:38,728 INFO L87 Difference]: Start difference. First operand 719 states and 1022 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:13:50,681 INFO L93 Difference]: Finished difference Result 1462 states and 2038 transitions. [2024-11-07 08:13:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 08:13:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-07 08:13:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:13:50,685 INFO L225 Difference]: With dead ends: 1462 [2024-11-07 08:13:50,685 INFO L226 Difference]: Without dead ends: 1460 [2024-11-07 08:13:50,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2024-11-07 08:13:50,686 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 317 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-07 08:13:50,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1024 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-07 08:13:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-11-07 08:13:50,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 880. [2024-11-07 08:13:50,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 814 states have (on average 1.4066339066339066) internal successors, (1145), 817 states have internal predecessors, (1145), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-07 08:13:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1253 transitions. [2024-11-07 08:13:50,723 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1253 transitions. Word has length 145 [2024-11-07 08:13:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:13:50,724 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1253 transitions. [2024-11-07 08:13:50,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 08:13:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1253 transitions. [2024-11-07 08:13:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 08:13:50,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:13:50,726 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:50,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 08:13:50,726 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:13:50,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:13:50,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1393434241, now seen corresponding path program 1 times [2024-11-07 08:13:50,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:13:50,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917329578] [2024-11-07 08:13:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:13:50,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:13:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat