./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.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', '28f14d75de89afae09449709ada95c31646c3d0705a1364fd113ea63ae6b9c48'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.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 28f14d75de89afae09449709ada95c31646c3d0705a1364fd113ea63ae6b9c48 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:13:49,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:13:49,396 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:13:49,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:13:49,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:13:49,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:13:49,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:13:49,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:13:49,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:13:49,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:13:49,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:13:49,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:13:49,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:13:49,435 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:13:49,435 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:13:49,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:13:49,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:13:49,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:13:49,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:13:49,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:13:49,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:13:49,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:13:49,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:13:49,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:13:49,439 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 -> 28f14d75de89afae09449709ada95c31646c3d0705a1364fd113ea63ae6b9c48 [2024-11-07 07:13:49,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:13:49,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:13:49,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:13:49,739 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:13:49,739 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:13:49,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2024-11-07 07:13:50,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:13:51,276 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:13:51,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2024-11-07 07:13:51,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89e29ddba/b758ae3bf16a4ce9b5a95004a0f12294/FLAG13f65def2 [2024-11-07 07:13:51,306 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89e29ddba/b758ae3bf16a4ce9b5a95004a0f12294 [2024-11-07 07:13:51,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:13:51,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:13:51,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:13:51,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:13:51,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:13:51,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70817d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51, skipping insertion in model container [2024-11-07 07:13:51,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:13:51,470 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i[919,932] [2024-11-07 07:13:51,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:13:51,560 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:13:51,572 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i[919,932] [2024-11-07 07:13:51,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:13:51,622 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:13:51,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51 WrapperNode [2024-11-07 07:13:51,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:13:51,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:13:51,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:13:51,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:13:51,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,693 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-11-07 07:13:51,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:13:51,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:13:51,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:13:51,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:13:51,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,740 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 07:13:51,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:13:51,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:13:51,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:13:51,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:13:51,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (1/1) ... [2024-11-07 07:13:51,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:13:51,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:13:51,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 07:13:51,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 07:13:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:13:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:13:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:13:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:13:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:13:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:13:51,928 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:13:51,930 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:13:52,423 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-07 07:13:52,424 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:13:52,435 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:13:52,435 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:13:52,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:13:52 BoogieIcfgContainer [2024-11-07 07:13:52,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:13:52,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:13:52,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:13:52,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:13:52,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:13:51" (1/3) ... [2024-11-07 07:13:52,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b04cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:13:52, skipping insertion in model container [2024-11-07 07:13:52,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:51" (2/3) ... [2024-11-07 07:13:52,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b04cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:13:52, skipping insertion in model container [2024-11-07 07:13:52,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:13:52" (3/3) ... [2024-11-07 07:13:52,446 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2024-11-07 07:13:52,457 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:13:52,457 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:13:52,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:13:52,520 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;@57d541d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:13:52,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:13:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 07:13:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-07 07:13:52,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:52,540 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:13:52,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:52,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1283659607, now seen corresponding path program 1 times [2024-11-07 07:13:52,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:52,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830721643] [2024-11-07 07:13:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 07:13:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 07:13:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 07:13:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 07:13:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 07:13:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 07:13:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 07:13:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 07:13:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 07:13:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 07:13:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 07:13:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 07:13:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 07:13:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 07:13:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:13:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 07:13:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:52,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 07:13:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 07:13:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 07:13:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 07:13:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 07:13:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 07:13:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 07:13:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-07 07:13:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 07:13:53,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:53,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830721643] [2024-11-07 07:13:53,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830721643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:53,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 07:13:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807978758] [2024-11-07 07:13:53,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:53,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 07:13:53,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 07:13:53,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:13:53,104 INFO L87 Difference]: Start difference. First operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 07:13:53,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:53,141 INFO L93 Difference]: Finished difference Result 191 states and 340 transitions. [2024-11-07 07:13:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 07:13:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2024-11-07 07:13:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:53,149 INFO L225 Difference]: With dead ends: 191 [2024-11-07 07:13:53,149 INFO L226 Difference]: Without dead ends: 94 [2024-11-07 07:13:53,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:13:53,157 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:53,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:13:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-07 07:13:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-07 07:13:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 58 states have internal predecessors, (76), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 07:13:53,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 144 transitions. [2024-11-07 07:13:53,197 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 144 transitions. Word has length 213 [2024-11-07 07:13:53,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:53,198 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 144 transitions. [2024-11-07 07:13:53,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 07:13:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 144 transitions. [2024-11-07 07:13:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-07 07:13:53,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:53,202 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:13:53,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:13:53,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:53,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:53,204 INFO L85 PathProgramCache]: Analyzing trace with hash 750911397, now seen corresponding path program 1 times [2024-11-07 07:13:53,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:53,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699895255] [2024-11-07 07:13:53,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:53,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 07:13:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 07:13:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 07:13:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 07:13:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 07:13:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 07:13:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 07:13:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 07:13:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 07:13:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 07:13:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 07:13:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 07:13:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 07:13:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 07:13:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:13:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 07:13:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 07:13:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 07:13:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 07:13:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 07:13:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 07:13:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 07:13:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 07:13:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-07 07:13:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 07:13:54,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:54,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699895255] [2024-11-07 07:13:54,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699895255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:54,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:54,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:13:54,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053732933] [2024-11-07 07:13:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:54,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:13:54,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:13:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:13:54,866 INFO L87 Difference]: Start difference. First operand 94 states and 144 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:55,008 INFO L93 Difference]: Finished difference Result 260 states and 404 transitions. [2024-11-07 07:13:55,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:13:55,010 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-11-07 07:13:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:55,015 INFO L225 Difference]: With dead ends: 260 [2024-11-07 07:13:55,016 INFO L226 Difference]: Without dead ends: 169 [2024-11-07 07:13:55,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:13:55,018 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 61 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:55,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 252 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 07:13:55,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-07 07:13:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2024-11-07 07:13:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 81 states have internal predecessors, (99), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 07:13:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 235 transitions. [2024-11-07 07:13:55,076 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 235 transitions. Word has length 213 [2024-11-07 07:13:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:55,079 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 235 transitions. [2024-11-07 07:13:55,079 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 235 transitions. [2024-11-07 07:13:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-07 07:13:55,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:55,081 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:13:55,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:13:55,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:55,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:55,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1173613223, now seen corresponding path program 1 times [2024-11-07 07:13:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120796505] [2024-11-07 07:13:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:55,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 07:13:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 07:13:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 07:13:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 07:13:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 07:13:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 07:13:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 07:13:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 07:13:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 07:13:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 07:13:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 07:13:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 07:13:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 07:13:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 07:13:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:13:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 07:13:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 07:13:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 07:13:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 07:13:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 07:13:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 07:13:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 07:13:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 07:13:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-07 07:13:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 07:13:55,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:55,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120796505] [2024-11-07 07:13:55,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120796505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:55,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:55,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 07:13:55,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519297242] [2024-11-07 07:13:55,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:55,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 07:13:55,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:55,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 07:13:55,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 07:13:55,846 INFO L87 Difference]: Start difference. First operand 152 states and 235 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:56,225 INFO L93 Difference]: Finished difference Result 281 states and 433 transitions. [2024-11-07 07:13:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 07:13:56,226 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-11-07 07:13:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:56,229 INFO L225 Difference]: With dead ends: 281 [2024-11-07 07:13:56,229 INFO L226 Difference]: Without dead ends: 190 [2024-11-07 07:13:56,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:13:56,230 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 96 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:56,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 352 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 07:13:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-07 07:13:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2024-11-07 07:13:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 105 states have internal predecessors, (136), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 07:13:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 272 transitions. [2024-11-07 07:13:56,288 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 272 transitions. Word has length 213 [2024-11-07 07:13:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:56,290 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 272 transitions. [2024-11-07 07:13:56,291 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 272 transitions. [2024-11-07 07:13:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-07 07:13:56,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:56,295 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:13:56,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:13:56,295 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:56,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2039841388, now seen corresponding path program 1 times [2024-11-07 07:13:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:56,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864577569] [2024-11-07 07:13:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:56,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 07:13:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 07:13:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 07:13:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 07:13:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 07:13:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 07:13:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 07:13:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 07:13:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 07:13:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 07:13:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 07:13:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 07:13:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 07:13:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 07:13:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-07 07:13:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 07:13:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 07:13:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 07:13:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 07:13:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 07:13:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 07:13:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-07 07:13:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 07:13:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-07 07:13:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 07:13:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864577569] [2024-11-07 07:13:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864577569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:56,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 07:13:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279842907] [2024-11-07 07:13:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:56,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 07:13:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 07:13:56,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 07:13:56,679 INFO L87 Difference]: Start difference. First operand 176 states and 272 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:56,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:56,970 INFO L93 Difference]: Finished difference Result 290 states and 444 transitions. [2024-11-07 07:13:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 07:13:56,971 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2024-11-07 07:13:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:56,974 INFO L225 Difference]: With dead ends: 290 [2024-11-07 07:13:56,974 INFO L226 Difference]: Without dead ends: 186 [2024-11-07 07:13:56,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:13:56,976 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 93 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:56,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 370 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 07:13:56,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-07 07:13:57,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2024-11-07 07:13:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 106 states have internal predecessors, (136), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-07 07:13:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 272 transitions. [2024-11-07 07:13:57,036 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 272 transitions. Word has length 214 [2024-11-07 07:13:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:57,037 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 272 transitions. [2024-11-07 07:13:57,037 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 07:13:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 272 transitions. [2024-11-07 07:13:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-07 07:13:57,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:57,040 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:13:57,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 07:13:57,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:57,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1606434852, now seen corresponding path program 1 times [2024-11-07 07:13:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:57,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817214424] [2024-11-07 07:13:57,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:57,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat