./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1 --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 37de0228bdc926eeed8c36d9a0d9df874217b43056bdb710b9397461ea004e55 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:20:35,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:20:35,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:20:35,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:20:35,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:20:35,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:20:35,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:20:35,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:20:35,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:20:35,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:20:35,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:20:35,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:20:35,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:20:35,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:20:35,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:20:35,108 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:35,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:35,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:35,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:20:35,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:20:35,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:20:35,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:20:35,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:20:35,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:20:35,110 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1 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 -> 37de0228bdc926eeed8c36d9a0d9df874217b43056bdb710b9397461ea004e55 [2024-12-01 13:20:35,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:20:35,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:20:35,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:20:35,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:20:35,368 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:20:35,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-12-01 13:20:38,127 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/data/95ce89633/8273720f66fa4465942eb3de0b98933f/FLAG64d960a4c [2024-12-01 13:20:38,360 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:20:38,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-12-01 13:20:38,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/data/95ce89633/8273720f66fa4465942eb3de0b98933f/FLAG64d960a4c [2024-12-01 13:20:38,694 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/data/95ce89633/8273720f66fa4465942eb3de0b98933f [2024-12-01 13:20:38,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:20:38,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:20:38,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:38,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:20:38,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:20:38,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:38" (1/1) ... [2024-12-01 13:20:38,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af6845d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:38, skipping insertion in model container [2024-12-01 13:20:38,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:38" (1/1) ... [2024-12-01 13:20:38,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:20:38,870 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i[919,932] [2024-12-01 13:20:38,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:38,945 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:20:38,955 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i[919,932] [2024-12-01 13:20:38,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:39,007 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:20:39,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39 WrapperNode [2024-12-01 13:20:39,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:39,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:39,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:20:39,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:20:39,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,063 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-12-01 13:20:39,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:39,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:20:39,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:20:39,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:20:39,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,095 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]. [2024-12-01 13:20:39,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,106 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:20:39,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:20:39,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:20:39,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:20:39,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (1/1) ... [2024-12-01 13:20:39,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:39,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:39,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:20:39,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:20:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:20:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:20:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:20:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:20:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:20:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:20:39,264 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:20:39,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:20:39,681 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-01 13:20:39,682 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:20:39,695 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:20:39,695 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:20:39,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:39 BoogieIcfgContainer [2024-12-01 13:20:39,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:20:39,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:20:39,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:20:39,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:20:39,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:20:38" (1/3) ... [2024-12-01 13:20:39,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7678c3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:39, skipping insertion in model container [2024-12-01 13:20:39,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:39" (2/3) ... [2024-12-01 13:20:39,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7678c3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:39, skipping insertion in model container [2024-12-01 13:20:39,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:39" (3/3) ... [2024-12-01 13:20:39,707 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-12-01 13:20:39,726 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:20:39,727 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i that has 2 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:20:39,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:20:39,810 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;@778756cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:20:39,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:20:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-01 13:20:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-01 13:20:39,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:39,828 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:39,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:39,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2015951129, now seen corresponding path program 1 times [2024-12-01 13:20:39,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:39,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100493796] [2024-12-01 13:20:39,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:39,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-12-01 13:20:40,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:40,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100493796] [2024-12-01 13:20:40,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100493796] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:40,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597932035] [2024-12-01 13:20:40,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:40,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:20:40,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:40,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:20:40,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:20:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:40,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:20:40,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-12-01 13:20:40,323 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:40,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597932035] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:40,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:40,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-01 13:20:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78509995] [2024-12-01 13:20:40,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:40,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:20:40,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:40,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:20:40,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:40,348 INFO L87 Difference]: Start difference. First operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-01 13:20:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:40,371 INFO L93 Difference]: Finished difference Result 189 states and 331 transitions. [2024-12-01 13:20:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:20:40,373 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-12-01 13:20:40,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:40,378 INFO L225 Difference]: With dead ends: 189 [2024-12-01 13:20:40,379 INFO L226 Difference]: Without dead ends: 94 [2024-12-01 13:20:40,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:40,385 INFO L435 NwaCegarLoop]: 147 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, 147 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 [2024-12-01 13:20:40,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-12-01 13:20:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-12-01 13:20:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-01 13:20:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-12-01 13:20:40,421 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 175 [2024-12-01 13:20:40,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:40,422 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-12-01 13:20:40,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-01 13:20:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-12-01 13:20:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-01 13:20:40,426 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:40,426 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:40,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:20:40,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-01 13:20:40,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:40,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:40,627 INFO L85 PathProgramCache]: Analyzing trace with hash 476781609, now seen corresponding path program 1 times [2024-12-01 13:20:40,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:40,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847838299] [2024-12-01 13:20:40,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:40,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847838299] [2024-12-01 13:20:40,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847838299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:40,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:40,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:40,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421402480] [2024-12-01 13:20:40,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:40,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:40,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:40,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:40,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:40,933 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:40,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:40,967 INFO L93 Difference]: Finished difference Result 186 states and 293 transitions. [2024-12-01 13:20:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:40,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-12-01 13:20:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:40,971 INFO L225 Difference]: With dead ends: 186 [2024-12-01 13:20:40,971 INFO L226 Difference]: Without dead ends: 95 [2024-12-01 13:20:40,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:40,972 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 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 [2024-12-01 13:20:40,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:40,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-01 13:20:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-12-01 13:20:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-01 13:20:40,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-12-01 13:20:40,985 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 175 [2024-12-01 13:20:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:40,987 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-12-01 13:20:40,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:40,987 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-12-01 13:20:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-01 13:20:40,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:40,990 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:40,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:20:40,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:40,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1517363097, now seen corresponding path program 1 times [2024-12-01 13:20:40,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:40,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835448858] [2024-12-01 13:20:40,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:40,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:41,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835448858] [2024-12-01 13:20:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835448858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:41,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:41,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:41,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182062256] [2024-12-01 13:20:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:41,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:41,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:41,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:41,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:41,230 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:41,509 INFO L93 Difference]: Finished difference Result 280 states and 439 transitions. [2024-12-01 13:20:41,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:41,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-12-01 13:20:41,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:41,512 INFO L225 Difference]: With dead ends: 280 [2024-12-01 13:20:41,513 INFO L226 Difference]: Without dead ends: 188 [2024-12-01 13:20:41,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:20:41,514 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 149 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:41,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 503 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:20:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-12-01 13:20:41,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2024-12-01 13:20:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.4054054054054055) internal successors, (156), 111 states have internal predecessors, (156), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-01 13:20:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 264 transitions. [2024-12-01 13:20:41,542 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 264 transitions. Word has length 175 [2024-12-01 13:20:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:41,543 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 264 transitions. [2024-12-01 13:20:41,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 264 transitions. [2024-12-01 13:20:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-01 13:20:41,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:41,546 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:41,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:20:41,546 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:41,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1766486949, now seen corresponding path program 1 times [2024-12-01 13:20:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226851570] [2024-12-01 13:20:41,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:49,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:49,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226851570] [2024-12-01 13:20:49,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226851570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:49,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:49,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:20:49,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32588812] [2024-12-01 13:20:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:49,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:20:49,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:49,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:20:49,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:20:49,030 INFO L87 Difference]: Start difference. First operand 168 states and 264 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:52,871 INFO L93 Difference]: Finished difference Result 357 states and 549 transitions. [2024-12-01 13:20:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-01 13:20:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-12-01 13:20:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:52,876 INFO L225 Difference]: With dead ends: 357 [2024-12-01 13:20:52,876 INFO L226 Difference]: Without dead ends: 265 [2024-12-01 13:20:52,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2024-12-01 13:20:52,879 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 524 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:52,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1058 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-01 13:20:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-12-01 13:20:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 210. [2024-12-01 13:20:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 153 states have internal predecessors, (219), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-01 13:20:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 327 transitions. [2024-12-01 13:20:52,908 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 327 transitions. Word has length 175 [2024-12-01 13:20:52,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:52,909 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 327 transitions. [2024-12-01 13:20:52,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:52,909 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 327 transitions. [2024-12-01 13:20:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-01 13:20:52,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:52,912 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:52,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:20:52,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:52,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:52,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1985341667, now seen corresponding path program 1 times [2024-12-01 13:20:52,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:52,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32652380] [2024-12-01 13:20:52,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:52,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:53,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32652380] [2024-12-01 13:20:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32652380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:53,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:53,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:20:53,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831351101] [2024-12-01 13:20:53,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:53,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:20:53,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:53,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:20:53,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:20:53,235 INFO L87 Difference]: Start difference. First operand 210 states and 327 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:53,331 INFO L93 Difference]: Finished difference Result 486 states and 759 transitions. [2024-12-01 13:20:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-12-01 13:20:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:53,335 INFO L225 Difference]: With dead ends: 486 [2024-12-01 13:20:53,336 INFO L226 Difference]: Without dead ends: 394 [2024-12-01 13:20:53,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:53,337 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 275 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:53,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 556 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:20:53,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-12-01 13:20:53,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 355. [2024-12-01 13:20:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 270 states have (on average 1.4666666666666666) internal successors, (396), 270 states have internal predecessors, (396), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:20:53,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 558 transitions. [2024-12-01 13:20:53,378 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 558 transitions. Word has length 175 [2024-12-01 13:20:53,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:53,379 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 558 transitions. [2024-12-01 13:20:53,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 558 transitions. [2024-12-01 13:20:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-01 13:20:53,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:53,382 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:53,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:20:53,382 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:53,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:53,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1232134917, now seen corresponding path program 1 times [2024-12-01 13:20:53,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:53,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654706040] [2024-12-01 13:20:53,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:53,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654706040] [2024-12-01 13:20:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654706040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:53,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958553055] [2024-12-01 13:20:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:53,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:53,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:53,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:53,660 INFO L87 Difference]: Start difference. First operand 355 states and 558 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:53,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:53,708 INFO L93 Difference]: Finished difference Result 604 states and 950 transitions. [2024-12-01 13:20:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:53,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-12-01 13:20:53,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:53,712 INFO L225 Difference]: With dead ends: 604 [2024-12-01 13:20:53,712 INFO L226 Difference]: Without dead ends: 364 [2024-12-01 13:20:53,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:53,714 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 6 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:53,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 272 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-01 13:20:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 355. [2024-12-01 13:20:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 270 states have (on average 1.4555555555555555) internal successors, (393), 270 states have internal predecessors, (393), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:20:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 555 transitions. [2024-12-01 13:20:53,741 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 555 transitions. Word has length 176 [2024-12-01 13:20:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:53,741 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 555 transitions. [2024-12-01 13:20:53,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:20:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 555 transitions. [2024-12-01 13:20:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-01 13:20:53,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:53,744 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:53,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:20:53,744 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:53,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash 542872445, now seen corresponding path program 1 times [2024-12-01 13:20:53,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:53,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477559690] [2024-12-01 13:20:53,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:53,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:20:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:59,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477559690] [2024-12-01 13:20:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477559690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:59,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:59,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:20:59,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146672964] [2024-12-01 13:20:59,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:59,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:20:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:59,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:20:59,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:20:59,190 INFO L87 Difference]: Start difference. First operand 355 states and 555 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:02,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:02,982 INFO L93 Difference]: Finished difference Result 652 states and 999 transitions. [2024-12-01 13:21:02,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:21:02,983 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-12-01 13:21:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:02,985 INFO L225 Difference]: With dead ends: 652 [2024-12-01 13:21:02,985 INFO L226 Difference]: Without dead ends: 415 [2024-12-01 13:21:02,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 13:21:02,987 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 361 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:02,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 978 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-01 13:21:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-01 13:21:03,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 356. [2024-12-01 13:21:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 271 states have (on average 1.4538745387453875) internal successors, (394), 271 states have internal predecessors, (394), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:21:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 556 transitions. [2024-12-01 13:21:03,020 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 556 transitions. Word has length 176 [2024-12-01 13:21:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:03,020 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 556 transitions. [2024-12-01 13:21:03,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 556 transitions. [2024-12-01 13:21:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-01 13:21:03,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:03,023 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:03,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:21:03,023 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:03,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1019977503, now seen corresponding path program 1 times [2024-12-01 13:21:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:03,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228419536] [2024-12-01 13:21:03,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:03,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:21:13,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:13,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228419536] [2024-12-01 13:21:13,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228419536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:13,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:13,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-01 13:21:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706046310] [2024-12-01 13:21:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:13,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:21:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:13,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:21:13,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:21:13,015 INFO L87 Difference]: Start difference. First operand 356 states and 556 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:17,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:17,220 INFO L93 Difference]: Finished difference Result 413 states and 620 transitions. [2024-12-01 13:21:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:21:17,221 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-12-01 13:21:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:17,223 INFO L225 Difference]: With dead ends: 413 [2024-12-01 13:21:17,223 INFO L226 Difference]: Without dead ends: 411 [2024-12-01 13:21:17,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2024-12-01 13:21:17,224 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 485 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:17,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 998 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-01 13:21:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-12-01 13:21:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 359. [2024-12-01 13:21:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 274 states have (on average 1.4525547445255473) internal successors, (398), 274 states have internal predecessors, (398), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:21:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 560 transitions. [2024-12-01 13:21:17,251 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 560 transitions. Word has length 176 [2024-12-01 13:21:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:17,251 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 560 transitions. [2024-12-01 13:21:17,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 560 transitions. [2024-12-01 13:21:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-01 13:21:17,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:17,254 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:17,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:21:17,254 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:17,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1706688612, now seen corresponding path program 1 times [2024-12-01 13:21:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:17,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979475978] [2024-12-01 13:21:17,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:21:25,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979475978] [2024-12-01 13:21:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979475978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:25,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:25,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:21:25,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228942278] [2024-12-01 13:21:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:25,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:21:25,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:25,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:21:25,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:21:25,019 INFO L87 Difference]: Start difference. First operand 359 states and 560 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:28,530 INFO L93 Difference]: Finished difference Result 430 states and 641 transitions. [2024-12-01 13:21:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-01 13:21:28,531 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-12-01 13:21:28,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:28,534 INFO L225 Difference]: With dead ends: 430 [2024-12-01 13:21:28,534 INFO L226 Difference]: Without dead ends: 428 [2024-12-01 13:21:28,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2024-12-01 13:21:28,535 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 334 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:28,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1223 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-01 13:21:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-12-01 13:21:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 371. [2024-12-01 13:21:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 286 states have (on average 1.444055944055944) internal successors, (413), 286 states have internal predecessors, (413), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:21:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 575 transitions. [2024-12-01 13:21:28,555 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 575 transitions. Word has length 176 [2024-12-01 13:21:28,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:28,556 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 575 transitions. [2024-12-01 13:21:28,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 575 transitions. [2024-12-01 13:21:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-01 13:21:28,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:28,558 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:28,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:21:28,558 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:28,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:28,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1026630242, now seen corresponding path program 1 times [2024-12-01 13:21:28,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206643296] [2024-12-01 13:21:28,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:21:36,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:36,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206643296] [2024-12-01 13:21:36,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206643296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:36,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:36,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-01 13:21:36,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984868865] [2024-12-01 13:21:36,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:36,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:21:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:36,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:21:36,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:21:36,081 INFO L87 Difference]: Start difference. First operand 371 states and 575 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:39,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:39,908 INFO L93 Difference]: Finished difference Result 424 states and 635 transitions. [2024-12-01 13:21:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-01 13:21:39,909 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-12-01 13:21:39,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:39,911 INFO L225 Difference]: With dead ends: 424 [2024-12-01 13:21:39,911 INFO L226 Difference]: Without dead ends: 422 [2024-12-01 13:21:39,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2024-12-01 13:21:39,912 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 327 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:39,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1115 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 13:21:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-12-01 13:21:39,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 371. [2024-12-01 13:21:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 286 states have (on average 1.444055944055944) internal successors, (413), 286 states have internal predecessors, (413), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:21:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 575 transitions. [2024-12-01 13:21:39,938 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 575 transitions. Word has length 176 [2024-12-01 13:21:39,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:39,939 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 575 transitions. [2024-12-01 13:21:39,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 575 transitions. [2024-12-01 13:21:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:21:39,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:39,940 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:39,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:21:39,941 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:39,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash -297321463, now seen corresponding path program 1 times [2024-12-01 13:21:39,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027682209] [2024-12-01 13:21:39,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:39,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:21:44,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027682209] [2024-12-01 13:21:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027682209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:44,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:44,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-01 13:21:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088081921] [2024-12-01 13:21:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:44,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:21:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:44,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:21:44,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:21:44,651 INFO L87 Difference]: Start difference. First operand 371 states and 575 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:48,376 INFO L93 Difference]: Finished difference Result 418 states and 626 transitions. [2024-12-01 13:21:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-01 13:21:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:21:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:48,379 INFO L225 Difference]: With dead ends: 418 [2024-12-01 13:21:48,379 INFO L226 Difference]: Without dead ends: 416 [2024-12-01 13:21:48,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:21:48,380 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 376 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:48,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 922 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 13:21:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-12-01 13:21:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 368. [2024-12-01 13:21:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 283 states have (on average 1.4452296819787986) internal successors, (409), 283 states have internal predecessors, (409), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:21:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 571 transitions. [2024-12-01 13:21:48,403 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 571 transitions. Word has length 177 [2024-12-01 13:21:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:48,404 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 571 transitions. [2024-12-01 13:21:48,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:21:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 571 transitions. [2024-12-01 13:21:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:21:48,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:48,405 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:48,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:21:48,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 284792409, now seen corresponding path program 1 times [2024-12-01 13:21:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383020024] [2024-12-01 13:21:48,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:57,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:21:57,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:57,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383020024] [2024-12-01 13:21:57,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383020024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:57,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:57,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-01 13:21:57,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926787378] [2024-12-01 13:21:57,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:57,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:21:57,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:57,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:21:57,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:21:57,353 INFO L87 Difference]: Start difference. First operand 368 states and 571 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:02,267 INFO L93 Difference]: Finished difference Result 446 states and 661 transitions. [2024-12-01 13:22:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:22:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:22:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:02,270 INFO L225 Difference]: With dead ends: 446 [2024-12-01 13:22:02,270 INFO L226 Difference]: Without dead ends: 444 [2024-12-01 13:22:02,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=318, Invalid=804, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 13:22:02,270 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 247 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:02,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 954 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-01 13:22:02,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-01 13:22:02,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 372. [2024-12-01 13:22:02,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 287 states have (on average 1.4425087108013936) internal successors, (414), 287 states have internal predecessors, (414), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:22:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 576 transitions. [2024-12-01 13:22:02,289 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 576 transitions. Word has length 177 [2024-12-01 13:22:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:02,290 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 576 transitions. [2024-12-01 13:22:02,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 576 transitions. [2024-12-01 13:22:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:22:02,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:02,291 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:02,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 13:22:02,292 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:02,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 964850779, now seen corresponding path program 1 times [2024-12-01 13:22:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:02,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556763421] [2024-12-01 13:22:02,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:02,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:22:12,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:12,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556763421] [2024-12-01 13:22:12,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556763421] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:12,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:12,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-01 13:22:12,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534015266] [2024-12-01 13:22:12,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:12,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:22:12,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:12,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:22:12,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:22:12,552 INFO L87 Difference]: Start difference. First operand 372 states and 576 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:21,906 INFO L93 Difference]: Finished difference Result 426 states and 637 transitions. [2024-12-01 13:22:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:22:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:22:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:21,910 INFO L225 Difference]: With dead ends: 426 [2024-12-01 13:22:21,910 INFO L226 Difference]: Without dead ends: 424 [2024-12-01 13:22:21,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=352, Invalid=838, Unknown=0, NotChecked=0, Total=1190 [2024-12-01 13:22:21,911 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 311 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:21,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 931 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-01 13:22:21,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-12-01 13:22:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 367. [2024-12-01 13:22:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 282 states have (on average 1.446808510638298) internal successors, (408), 282 states have internal predecessors, (408), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:22:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 570 transitions. [2024-12-01 13:22:21,931 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 570 transitions. Word has length 177 [2024-12-01 13:22:21,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:21,932 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 570 transitions. [2024-12-01 13:22:21,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 570 transitions. [2024-12-01 13:22:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:22:21,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:21,933 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:21,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 13:22:21,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:21,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash 248612454, now seen corresponding path program 1 times [2024-12-01 13:22:21,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:21,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747899411] [2024-12-01 13:22:21,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:21,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:22:28,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:28,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747899411] [2024-12-01 13:22:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747899411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:28,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:28,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:22:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440653462] [2024-12-01 13:22:28,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:28,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:22:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:28,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:22:28,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:22:28,306 INFO L87 Difference]: Start difference. First operand 367 states and 570 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-01 13:22:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:32,043 INFO L93 Difference]: Finished difference Result 436 states and 647 transitions. [2024-12-01 13:22:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-01 13:22:32,044 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177 [2024-12-01 13:22:32,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:32,049 INFO L225 Difference]: With dead ends: 436 [2024-12-01 13:22:32,049 INFO L226 Difference]: Without dead ends: 434 [2024-12-01 13:22:32,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 13:22:32,050 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 521 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:32,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1207 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-01 13:22:32,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-12-01 13:22:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 375. [2024-12-01 13:22:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 290 states have (on average 1.4413793103448276) internal successors, (418), 290 states have internal predecessors, (418), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:22:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 580 transitions. [2024-12-01 13:22:32,076 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 580 transitions. Word has length 177 [2024-12-01 13:22:32,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:32,077 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 580 transitions. [2024-12-01 13:22:32,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-01 13:22:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 580 transitions. [2024-12-01 13:22:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:22:32,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:32,078 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:32,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 13:22:32,078 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:32,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1312390452, now seen corresponding path program 1 times [2024-12-01 13:22:32,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:32,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462413242] [2024-12-01 13:22:32,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:32,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:22:36,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:36,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462413242] [2024-12-01 13:22:36,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462413242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:36,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:36,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-01 13:22:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398192518] [2024-12-01 13:22:36,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:36,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:22:36,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:36,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:22:36,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:22:36,695 INFO L87 Difference]: Start difference. First operand 375 states and 580 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:39,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:39,541 INFO L93 Difference]: Finished difference Result 435 states and 646 transitions. [2024-12-01 13:22:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:22:39,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:22:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:39,544 INFO L225 Difference]: With dead ends: 435 [2024-12-01 13:22:39,544 INFO L226 Difference]: Without dead ends: 433 [2024-12-01 13:22:39,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 13:22:39,545 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 319 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:39,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1136 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-01 13:22:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-12-01 13:22:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 378. [2024-12-01 13:22:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 293 states have (on average 1.4402730375426622) internal successors, (422), 293 states have internal predecessors, (422), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:22:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 584 transitions. [2024-12-01 13:22:39,560 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 584 transitions. Word has length 177 [2024-12-01 13:22:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:39,561 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 584 transitions. [2024-12-01 13:22:39,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 584 transitions. [2024-12-01 13:22:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:22:39,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:39,561 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:39,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 13:22:39,562 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:39,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash -144414556, now seen corresponding path program 1 times [2024-12-01 13:22:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:39,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123472212] [2024-12-01 13:22:39,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:39,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:22:48,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:48,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123472212] [2024-12-01 13:22:48,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123472212] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:48,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:48,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:22:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069946411] [2024-12-01 13:22:48,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:48,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:22:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:48,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:22:48,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:22:48,725 INFO L87 Difference]: Start difference. First operand 378 states and 584 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:58,932 INFO L93 Difference]: Finished difference Result 430 states and 641 transitions. [2024-12-01 13:22:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:22:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:22:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:58,934 INFO L225 Difference]: With dead ends: 430 [2024-12-01 13:22:58,934 INFO L226 Difference]: Without dead ends: 428 [2024-12-01 13:22:58,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=317, Invalid=943, Unknown=0, NotChecked=0, Total=1260 [2024-12-01 13:22:58,935 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 282 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:58,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1499 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-01 13:22:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-12-01 13:22:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 380. [2024-12-01 13:22:58,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 295 states have (on average 1.4406779661016949) internal successors, (425), 295 states have internal predecessors, (425), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:22:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 587 transitions. [2024-12-01 13:22:58,949 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 587 transitions. Word has length 177 [2024-12-01 13:22:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:58,950 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 587 transitions. [2024-12-01 13:22:58,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:22:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 587 transitions. [2024-12-01 13:22:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-01 13:22:58,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:58,951 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:58,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 13:22:58,951 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:58,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:58,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1705417462, now seen corresponding path program 1 times [2024-12-01 13:22:58,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:58,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76586990] [2024-12-01 13:22:58,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:58,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:23:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:04,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76586990] [2024-12-01 13:23:04,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76586990] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:04,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:04,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-01 13:23:04,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615589022] [2024-12-01 13:23:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:04,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:23:04,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:04,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:23:04,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:23:04,422 INFO L87 Difference]: Start difference. First operand 380 states and 587 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:06,969 INFO L93 Difference]: Finished difference Result 425 states and 635 transitions. [2024-12-01 13:23:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-01 13:23:06,970 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-12-01 13:23:06,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:06,971 INFO L225 Difference]: With dead ends: 425 [2024-12-01 13:23:06,971 INFO L226 Difference]: Without dead ends: 423 [2024-12-01 13:23:06,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2024-12-01 13:23:06,972 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 296 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:06,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1298 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-01 13:23:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-01 13:23:06,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 378. [2024-12-01 13:23:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 293 states have (on average 1.4402730375426622) internal successors, (422), 293 states have internal predecessors, (422), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:23:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 584 transitions. [2024-12-01 13:23:06,986 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 584 transitions. Word has length 177 [2024-12-01 13:23:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:06,986 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 584 transitions. [2024-12-01 13:23:06,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:06,986 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 584 transitions. [2024-12-01 13:23:06,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:23:06,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:06,987 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:06,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 13:23:06,987 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:06,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:06,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1854981961, now seen corresponding path program 1 times [2024-12-01 13:23:06,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:23:06,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242831550] [2024-12-01 13:23:06,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:06,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:23:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:23:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:17,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242831550] [2024-12-01 13:23:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242831550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:17,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:17,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:23:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922949200] [2024-12-01 13:23:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:17,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:23:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:17,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:23:17,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:23:17,455 INFO L87 Difference]: Start difference. First operand 378 states and 584 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:25,460 INFO L93 Difference]: Finished difference Result 458 states and 675 transitions. [2024-12-01 13:23:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:23:25,461 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-12-01 13:23:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:25,462 INFO L225 Difference]: With dead ends: 458 [2024-12-01 13:23:25,462 INFO L226 Difference]: Without dead ends: 456 [2024-12-01 13:23:25,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=385, Invalid=1021, Unknown=0, NotChecked=0, Total=1406 [2024-12-01 13:23:25,463 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 280 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:25,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 991 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-01 13:23:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-12-01 13:23:25,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 380. [2024-12-01 13:23:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 295 states have (on average 1.4406779661016949) internal successors, (425), 295 states have internal predecessors, (425), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:23:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 587 transitions. [2024-12-01 13:23:25,481 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 587 transitions. Word has length 178 [2024-12-01 13:23:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:25,481 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 587 transitions. [2024-12-01 13:23:25,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 587 transitions. [2024-12-01 13:23:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:23:25,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:25,482 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:25,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 13:23:25,483 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:25,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash 293979055, now seen corresponding path program 1 times [2024-12-01 13:23:25,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:23:25,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307954402] [2024-12-01 13:23:25,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:25,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:23:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:23:41,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:41,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307954402] [2024-12-01 13:23:41,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307954402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:41,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:41,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:23:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19727234] [2024-12-01 13:23:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:41,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:23:41,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:41,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:23:41,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:23:41,548 INFO L87 Difference]: Start difference. First operand 380 states and 587 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:53,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:53,615 INFO L93 Difference]: Finished difference Result 453 states and 669 transitions. [2024-12-01 13:23:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:23:53,616 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-12-01 13:23:53,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:53,617 INFO L225 Difference]: With dead ends: 453 [2024-12-01 13:23:53,617 INFO L226 Difference]: Without dead ends: 451 [2024-12-01 13:23:53,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2024-12-01 13:23:53,618 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 307 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:53,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 982 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-01 13:23:53,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-01 13:23:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 378. [2024-12-01 13:23:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 293 states have (on average 1.4402730375426622) internal successors, (422), 293 states have internal predecessors, (422), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:23:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 584 transitions. [2024-12-01 13:23:53,640 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 584 transitions. Word has length 178 [2024-12-01 13:23:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:53,640 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 584 transitions. [2024-12-01 13:23:53,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:23:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 584 transitions. [2024-12-01 13:23:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:23:53,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:53,641 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:53,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 13:23:53,641 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:53,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1461954951, now seen corresponding path program 1 times [2024-12-01 13:23:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:23:53,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751372501] [2024-12-01 13:23:53,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:53,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:23:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:24:07,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751372501] [2024-12-01 13:24:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751372501] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:07,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:07,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:24:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482062528] [2024-12-01 13:24:07,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:07,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:24:07,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:07,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:24:07,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:24:07,313 INFO L87 Difference]: Start difference. First operand 378 states and 584 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:24:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:14,820 INFO L93 Difference]: Finished difference Result 434 states and 646 transitions. [2024-12-01 13:24:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:24:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-12-01 13:24:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:14,822 INFO L225 Difference]: With dead ends: 434 [2024-12-01 13:24:14,822 INFO L226 Difference]: Without dead ends: 432 [2024-12-01 13:24:14,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=384, Invalid=948, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:24:14,823 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 254 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:14,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 991 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-01 13:24:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-12-01 13:24:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 378. [2024-12-01 13:24:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 293 states have (on average 1.4402730375426622) internal successors, (422), 293 states have internal predecessors, (422), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:24:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 584 transitions. [2024-12-01 13:24:14,840 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 584 transitions. Word has length 178 [2024-12-01 13:24:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:14,840 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 584 transitions. [2024-12-01 13:24:14,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:24:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 584 transitions. [2024-12-01 13:24:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:24:14,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:14,841 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:14,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 13:24:14,841 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:14,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:14,842 INFO L85 PathProgramCache]: Analyzing trace with hash -99047955, now seen corresponding path program 1 times [2024-12-01 13:24:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:14,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573044728] [2024-12-01 13:24:14,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:14,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:24:31,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573044728] [2024-12-01 13:24:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573044728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:24:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802143256] [2024-12-01 13:24:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:31,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:24:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:31,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:24:31,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:24:31,498 INFO L87 Difference]: Start difference. First operand 378 states and 584 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:24:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:48,350 INFO L93 Difference]: Finished difference Result 429 states and 640 transitions. [2024-12-01 13:24:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:24:48,351 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-12-01 13:24:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:48,353 INFO L225 Difference]: With dead ends: 429 [2024-12-01 13:24:48,353 INFO L226 Difference]: Without dead ends: 427 [2024-12-01 13:24:48,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=380, Invalid=952, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:24:48,355 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 233 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:48,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 1149 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-12-01 13:24:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-12-01 13:24:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 371. [2024-12-01 13:24:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 286 states have (on average 1.444055944055944) internal successors, (413), 286 states have internal predecessors, (413), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:24:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 575 transitions. [2024-12-01 13:24:48,382 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 575 transitions. Word has length 178 [2024-12-01 13:24:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:48,383 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 575 transitions. [2024-12-01 13:24:48,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:24:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 575 transitions. [2024-12-01 13:24:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:24:48,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:48,384 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:48,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 13:24:48,385 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:48,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:48,385 INFO L85 PathProgramCache]: Analyzing trace with hash -827599550, now seen corresponding path program 1 times [2024-12-01 13:24:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:48,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395754396] [2024-12-01 13:24:48,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:25:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:25:04,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:25:04,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395754396] [2024-12-01 13:25:04,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395754396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:25:04,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:25:04,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:25:04,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138533477] [2024-12-01 13:25:04,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:25:04,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:25:04,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:25:04,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:25:04,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:25:04,469 INFO L87 Difference]: Start difference. First operand 371 states and 575 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-01 13:25:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:25:11,469 INFO L93 Difference]: Finished difference Result 432 states and 643 transitions. [2024-12-01 13:25:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:25:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2024-12-01 13:25:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:25:11,472 INFO L225 Difference]: With dead ends: 432 [2024-12-01 13:25:11,472 INFO L226 Difference]: Without dead ends: 430 [2024-12-01 13:25:11,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2024-12-01 13:25:11,475 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 408 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:25:11,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1660 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-01 13:25:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-12-01 13:25:11,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 379. [2024-12-01 13:25:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 294 states have (on average 1.4387755102040816) internal successors, (423), 294 states have internal predecessors, (423), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:25:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-12-01 13:25:11,493 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 178 [2024-12-01 13:25:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:25:11,493 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-12-01 13:25:11,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-01 13:25:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-12-01 13:25:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-01 13:25:11,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:25:11,494 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:25:11,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 13:25:11,494 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:25:11,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:25:11,495 INFO L85 PathProgramCache]: Analyzing trace with hash -126534972, now seen corresponding path program 1 times [2024-12-01 13:25:11,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:25:11,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48856700] [2024-12-01 13:25:11,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:25:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:25:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:25:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:25:25,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:25:25,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48856700] [2024-12-01 13:25:25,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48856700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:25:25,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:25:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:25:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57808130] [2024-12-01 13:25:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:25:25,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:25:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:25:25,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:25:25,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:25:25,014 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:25:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:25:35,995 INFO L93 Difference]: Finished difference Result 427 states and 637 transitions. [2024-12-01 13:25:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-01 13:25:35,997 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-12-01 13:25:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:25:35,998 INFO L225 Difference]: With dead ends: 427 [2024-12-01 13:25:35,998 INFO L226 Difference]: Without dead ends: 425 [2024-12-01 13:25:35,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=433, Invalid=1207, Unknown=0, NotChecked=0, Total=1640 [2024-12-01 13:25:35,999 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 273 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:25:36,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1454 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-01 13:25:36,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-12-01 13:25:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 379. [2024-12-01 13:25:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 294 states have (on average 1.4387755102040816) internal successors, (423), 294 states have internal predecessors, (423), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:25:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-12-01 13:25:36,015 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 178 [2024-12-01 13:25:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:25:36,015 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-12-01 13:25:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:25:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-12-01 13:25:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-01 13:25:36,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:25:36,016 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:25:36,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 13:25:36,016 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:25:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:25:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1725214911, now seen corresponding path program 1 times [2024-12-01 13:25:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:25:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855243939] [2024-12-01 13:25:36,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:25:36,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:25:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:25:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:25:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:25:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855243939] [2024-12-01 13:25:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855243939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:25:57,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:25:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-01 13:25:57,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254611614] [2024-12-01 13:25:57,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:25:57,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:25:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:25:57,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:25:57,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:25:57,119 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:14,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:26:14,574 INFO L93 Difference]: Finished difference Result 439 states and 653 transitions. [2024-12-01 13:26:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:26:14,575 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-12-01 13:26:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:26:14,576 INFO L225 Difference]: With dead ends: 439 [2024-12-01 13:26:14,577 INFO L226 Difference]: Without dead ends: 437 [2024-12-01 13:26:14,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2024-12-01 13:26:14,577 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 235 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:26:14,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 954 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-12-01 13:26:14,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-12-01 13:26:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 379. [2024-12-01 13:26:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 294 states have (on average 1.4387755102040816) internal successors, (423), 294 states have internal predecessors, (423), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:26:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-12-01 13:26:14,592 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 179 [2024-12-01 13:26:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:26:14,592 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-12-01 13:26:14,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-12-01 13:26:14,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-01 13:26:14,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:26:14,593 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:26:14,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 13:26:14,593 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:26:14,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:26:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1868687807, now seen corresponding path program 1 times [2024-12-01 13:26:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:26:14,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850521028] [2024-12-01 13:26:14,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:26:14,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:26:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:26:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-12-01 13:26:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:26:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850521028] [2024-12-01 13:26:31,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850521028] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:26:31,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:26:31,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-01 13:26:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966421511] [2024-12-01 13:26:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:26:31,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-01 13:26:31,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:26:31,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-01 13:26:31,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-12-01 13:26:31,582 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:26:45,856 INFO L93 Difference]: Finished difference Result 417 states and 627 transitions. [2024-12-01 13:26:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:26:45,856 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-12-01 13:26:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:26:45,859 INFO L225 Difference]: With dead ends: 417 [2024-12-01 13:26:45,859 INFO L226 Difference]: Without dead ends: 415 [2024-12-01 13:26:45,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2024-12-01 13:26:45,861 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 222 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:26:45,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 980 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-01 13:26:45,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-01 13:26:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 369. [2024-12-01 13:26:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 284 states have (on average 1.443661971830986) internal successors, (410), 284 states have internal predecessors, (410), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:26:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 572 transitions. [2024-12-01 13:26:45,885 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 572 transitions. Word has length 179 [2024-12-01 13:26:45,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:26:45,885 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 572 transitions. [2024-12-01 13:26:45,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:45,886 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 572 transitions. [2024-12-01 13:26:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-12-01 13:26:45,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:26:45,889 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:26:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 13:26:45,890 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:26:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:26:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1853068148, now seen corresponding path program 1 times [2024-12-01 13:26:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:26:45,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647246964] [2024-12-01 13:26:45,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:26:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:26:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:26:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:26:53,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:26:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647246964] [2024-12-01 13:26:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647246964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:26:53,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:26:53,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-01 13:26:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140507691] [2024-12-01 13:26:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:26:53,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 13:26:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:26:53,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 13:26:53,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:26:53,992 INFO L87 Difference]: Start difference. First operand 369 states and 572 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:26:56,023 INFO L93 Difference]: Finished difference Result 723 states and 1098 transitions. [2024-12-01 13:26:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:26:56,024 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 347 [2024-12-01 13:26:56,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:26:56,026 INFO L225 Difference]: With dead ends: 723 [2024-12-01 13:26:56,026 INFO L226 Difference]: Without dead ends: 486 [2024-12-01 13:26:56,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:26:56,027 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 136 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:26:56,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1089 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-01 13:26:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-12-01 13:26:56,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 384. [2024-12-01 13:26:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 299 states have (on average 1.4381270903010033) internal successors, (430), 299 states have internal predecessors, (430), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:26:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 592 transitions. [2024-12-01 13:26:56,046 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 592 transitions. Word has length 347 [2024-12-01 13:26:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:26:56,046 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 592 transitions. [2024-12-01 13:26:56,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:26:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 592 transitions. [2024-12-01 13:26:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-12-01 13:26:56,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:26:56,048 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:26:56,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 13:26:56,049 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:26:56,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:26:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1430781898, now seen corresponding path program 1 times [2024-12-01 13:26:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:26:56,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680459432] [2024-12-01 13:26:56,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:26:56,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:26:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:27:07,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:27:07,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680459432] [2024-12-01 13:27:07,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680459432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:27:07,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:27:07,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-01 13:27:07,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301857091] [2024-12-01 13:27:07,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:27:07,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 13:27:07,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:27:07,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 13:27:07,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:27:07,236 INFO L87 Difference]: Start difference. First operand 384 states and 592 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:27:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:27:10,538 INFO L93 Difference]: Finished difference Result 780 states and 1167 transitions. [2024-12-01 13:27:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:27:10,539 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 347 [2024-12-01 13:27:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:27:10,541 INFO L225 Difference]: With dead ends: 780 [2024-12-01 13:27:10,541 INFO L226 Difference]: Without dead ends: 525 [2024-12-01 13:27:10,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:27:10,542 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 146 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:27:10,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1094 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-01 13:27:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-12-01 13:27:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 385. [2024-12-01 13:27:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 300 states have (on average 1.44) internal successors, (432), 300 states have internal predecessors, (432), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:27:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 594 transitions. [2024-12-01 13:27:10,561 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 594 transitions. Word has length 347 [2024-12-01 13:27:10,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:27:10,561 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 594 transitions. [2024-12-01 13:27:10,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:27:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 594 transitions. [2024-12-01 13:27:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-12-01 13:27:10,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:27:10,564 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:27:10,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 13:27:10,564 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:27:10,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:27:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash 5814134, now seen corresponding path program 1 times [2024-12-01 13:27:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:27:10,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553212343] [2024-12-01 13:27:10,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:27:10,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:27:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 5728 trivial. 0 not checked. [2024-12-01 13:27:26,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:27:26,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553212343] [2024-12-01 13:27:26,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553212343] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:27:26,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415302269] [2024-12-01 13:27:26,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:27:26,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:27:26,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:27:26,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:27:26,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:27:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:26,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-01 13:27:26,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:27:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 388 proven. 3 refuted. 0 times theorem prover too weak. 5396 trivial. 0 not checked. [2024-12-01 13:27:26,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:27:27,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415302269] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:27:27,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:27:27,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5] total 20 [2024-12-01 13:27:27,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178243110] [2024-12-01 13:27:27,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-01 13:27:27,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-01 13:27:27,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:27:27,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-01 13:27:27,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-12-01 13:27:27,018 INFO L87 Difference]: Start difference. First operand 385 states and 594 transitions. Second operand has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-12-01 13:27:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:27:35,925 INFO L93 Difference]: Finished difference Result 714 states and 1050 transitions. [2024-12-01 13:27:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-01 13:27:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 348 [2024-12-01 13:27:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:27:35,928 INFO L225 Difference]: With dead ends: 714 [2024-12-01 13:27:35,928 INFO L226 Difference]: Without dead ends: 397 [2024-12-01 13:27:35,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=372, Invalid=1434, Unknown=0, NotChecked=0, Total=1806 [2024-12-01 13:27:35,930 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 404 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:27:35,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 823 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-01 13:27:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-01 13:27:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 330. [2024-12-01 13:27:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 239 states have (on average 1.3096234309623431) internal successors, (313), 239 states have internal predecessors, (313), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:27:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 475 transitions. [2024-12-01 13:27:35,976 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 475 transitions. Word has length 348 [2024-12-01 13:27:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:27:35,977 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 475 transitions. [2024-12-01 13:27:35,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-12-01 13:27:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 475 transitions. [2024-12-01 13:27:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:27:35,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:27:35,981 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:27:35,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-01 13:27:36,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-01 13:27:36,181 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:27:36,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:27:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash -840285532, now seen corresponding path program 1 times [2024-12-01 13:27:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:27:36,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297343829] [2024-12-01 13:27:36,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:27:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:27:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:27:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:27:53,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297343829] [2024-12-01 13:27:53,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297343829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:27:53,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:27:53,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:27:53,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217688729] [2024-12-01 13:27:53,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:27:53,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:27:53,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:27:53,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:27:53,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:27:53,814 INFO L87 Difference]: Start difference. First operand 330 states and 475 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:27:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:27:58,464 INFO L93 Difference]: Finished difference Result 391 states and 549 transitions. [2024-12-01 13:27:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:27:58,466 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:27:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:27:58,468 INFO L225 Difference]: With dead ends: 391 [2024-12-01 13:27:58,468 INFO L226 Difference]: Without dead ends: 389 [2024-12-01 13:27:58,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:27:58,469 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 130 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:27:58,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1055 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-01 13:27:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-12-01 13:27:58,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 330. [2024-12-01 13:27:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 239 states have (on average 1.3096234309623431) internal successors, (313), 239 states have internal predecessors, (313), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:27:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 475 transitions. [2024-12-01 13:27:58,506 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 475 transitions. Word has length 350 [2024-12-01 13:27:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:27:58,506 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 475 transitions. [2024-12-01 13:27:58,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:27:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 475 transitions. [2024-12-01 13:27:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:27:58,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:27:58,508 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:27:58,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-01 13:27:58,508 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:27:58,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:27:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1694014859, now seen corresponding path program 1 times [2024-12-01 13:27:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:27:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566120917] [2024-12-01 13:27:58,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:27:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:27:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:28:08,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566120917] [2024-12-01 13:28:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566120917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:28:08,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:28:08,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:28:08,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69744802] [2024-12-01 13:28:08,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:28:08,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:28:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:08,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:28:08,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:28:08,981 INFO L87 Difference]: Start difference. First operand 330 states and 475 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:13,159 INFO L93 Difference]: Finished difference Result 650 states and 920 transitions. [2024-12-01 13:28:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:28:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:28:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:13,162 INFO L225 Difference]: With dead ends: 650 [2024-12-01 13:28:13,162 INFO L226 Difference]: Without dead ends: 426 [2024-12-01 13:28:13,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-12-01 13:28:13,163 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 205 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:13,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 860 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-01 13:28:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-12-01 13:28:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 332. [2024-12-01 13:28:13,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 241 states have (on average 1.3153526970954357) internal successors, (317), 241 states have internal predecessors, (317), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 479 transitions. [2024-12-01 13:28:13,191 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 479 transitions. Word has length 350 [2024-12-01 13:28:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:13,191 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 479 transitions. [2024-12-01 13:28:13,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 479 transitions. [2024-12-01 13:28:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:28:13,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:13,193 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:13,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-01 13:28:13,193 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:13,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1952180297, now seen corresponding path program 1 times [2024-12-01 13:28:13,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:13,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338558430] [2024-12-01 13:28:13,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:13,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 53 proven. 11 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-12-01 13:28:13,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:13,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338558430] [2024-12-01 13:28:13,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338558430] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:28:13,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730138008] [2024-12-01 13:28:13,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:13,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:28:13,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:28:13,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:28:13,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 13:28:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:13,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:28:13,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:28:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 2969 proven. 11 refuted. 0 times theorem prover too weak. 2808 trivial. 0 not checked. [2024-12-01 13:28:14,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:28:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 53 proven. 11 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-12-01 13:28:14,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730138008] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:28:14,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:28:14,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-01 13:28:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253578482] [2024-12-01 13:28:14,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:28:14,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:28:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:14,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:28:14,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:28:14,352 INFO L87 Difference]: Start difference. First operand 332 states and 479 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 4 states have call predecessors, (108), 4 states have call successors, (108) [2024-12-01 13:28:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:14,618 INFO L93 Difference]: Finished difference Result 748 states and 1067 transitions. [2024-12-01 13:28:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:28:14,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 4 states have call predecessors, (108), 4 states have call successors, (108) Word has length 350 [2024-12-01 13:28:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:14,622 INFO L225 Difference]: With dead ends: 748 [2024-12-01 13:28:14,623 INFO L226 Difference]: Without dead ends: 522 [2024-12-01 13:28:14,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:28:14,624 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 392 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:14,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1013 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:28:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-12-01 13:28:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 343. [2024-12-01 13:28:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 252 states have (on average 1.3134920634920635) internal successors, (331), 252 states have internal predecessors, (331), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 493 transitions. [2024-12-01 13:28:14,683 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 493 transitions. Word has length 350 [2024-12-01 13:28:14,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:14,683 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 493 transitions. [2024-12-01 13:28:14,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 4 states have call predecessors, (108), 4 states have call successors, (108) [2024-12-01 13:28:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 493 transitions. [2024-12-01 13:28:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:28:14,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:14,685 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:14,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 13:28:14,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:28:14,886 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:14,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash -557299262, now seen corresponding path program 1 times [2024-12-01 13:28:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:14,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83772723] [2024-12-01 13:28:14,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:28:25,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:25,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83772723] [2024-12-01 13:28:25,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83772723] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:28:25,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:28:25,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:28:25,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440934680] [2024-12-01 13:28:25,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:28:25,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:28:25,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:25,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:28:25,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:28:25,782 INFO L87 Difference]: Start difference. First operand 343 states and 493 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:28,759 INFO L93 Difference]: Finished difference Result 453 states and 624 transitions. [2024-12-01 13:28:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:28:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:28:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:28,762 INFO L225 Difference]: With dead ends: 453 [2024-12-01 13:28:28,762 INFO L226 Difference]: Without dead ends: 451 [2024-12-01 13:28:28,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:28:28,763 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 157 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:28,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 856 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-01 13:28:28,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-01 13:28:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 349. [2024-12-01 13:28:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 258 states have (on average 1.317829457364341) internal successors, (340), 258 states have internal predecessors, (340), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 502 transitions. [2024-12-01 13:28:28,798 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 502 transitions. Word has length 350 [2024-12-01 13:28:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:28,798 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 502 transitions. [2024-12-01 13:28:28,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 502 transitions. [2024-12-01 13:28:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:28:28,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:28,800 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:28,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-01 13:28:28,800 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:28,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2120149210, now seen corresponding path program 1 times [2024-12-01 13:28:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:28,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004073989] [2024-12-01 13:28:28,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:28:41,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:41,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004073989] [2024-12-01 13:28:41,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004073989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:28:41,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:28:41,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:28:41,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380684342] [2024-12-01 13:28:41,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:28:41,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:28:41,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:41,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:28:41,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:28:41,590 INFO L87 Difference]: Start difference. First operand 349 states and 502 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:44,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:44,951 INFO L93 Difference]: Finished difference Result 448 states and 619 transitions. [2024-12-01 13:28:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:28:44,952 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:28:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:44,954 INFO L225 Difference]: With dead ends: 448 [2024-12-01 13:28:44,954 INFO L226 Difference]: Without dead ends: 446 [2024-12-01 13:28:44,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:28:44,954 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:44,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 947 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-01 13:28:44,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-12-01 13:28:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 345. [2024-12-01 13:28:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 254 states have (on average 1.3188976377952757) internal successors, (335), 254 states have internal predecessors, (335), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 497 transitions. [2024-12-01 13:28:45,003 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 497 transitions. Word has length 350 [2024-12-01 13:28:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:45,003 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 497 transitions. [2024-12-01 13:28:45,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 497 transitions. [2024-12-01 13:28:45,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:28:45,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:45,005 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:45,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-01 13:28:45,005 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:45,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1001421985, now seen corresponding path program 1 times [2024-12-01 13:28:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:45,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076733518] [2024-12-01 13:28:45,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:45,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:28:45,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:45,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076733518] [2024-12-01 13:28:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076733518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:28:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:28:45,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:28:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286795571] [2024-12-01 13:28:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:28:45,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:28:45,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:45,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:28:45,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:28:45,303 INFO L87 Difference]: Start difference. First operand 345 states and 497 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:45,384 INFO L93 Difference]: Finished difference Result 598 states and 859 transitions. [2024-12-01 13:28:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:28:45,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:28:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:45,387 INFO L225 Difference]: With dead ends: 598 [2024-12-01 13:28:45,387 INFO L226 Difference]: Without dead ends: 359 [2024-12-01 13:28:45,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:28:45,388 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 78 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:45,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 340 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:28:45,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-12-01 13:28:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 343. [2024-12-01 13:28:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 252 states have (on average 1.3134920634920635) internal successors, (331), 252 states have internal predecessors, (331), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 493 transitions. [2024-12-01 13:28:45,417 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 493 transitions. Word has length 350 [2024-12-01 13:28:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:45,417 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 493 transitions. [2024-12-01 13:28:45,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 493 transitions. [2024-12-01 13:28:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-12-01 13:28:45,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:45,419 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:45,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-01 13:28:45,420 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:45,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:45,420 INFO L85 PathProgramCache]: Analyzing trace with hash 414151181, now seen corresponding path program 1 times [2024-12-01 13:28:45,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:45,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5112822] [2024-12-01 13:28:45,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:45,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:28:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:28:52,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:28:52,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5112822] [2024-12-01 13:28:52,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5112822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:28:52,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:28:52,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:28:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472371754] [2024-12-01 13:28:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:28:52,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:28:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:28:52,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:28:52,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:28:52,683 INFO L87 Difference]: Start difference. First operand 343 states and 493 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:55,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:28:55,279 INFO L93 Difference]: Finished difference Result 568 states and 790 transitions. [2024-12-01 13:28:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:28:55,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 350 [2024-12-01 13:28:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:28:55,281 INFO L225 Difference]: With dead ends: 568 [2024-12-01 13:28:55,281 INFO L226 Difference]: Without dead ends: 434 [2024-12-01 13:28:55,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-12-01 13:28:55,282 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 194 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:28:55,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 881 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-01 13:28:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-12-01 13:28:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 327. [2024-12-01 13:28:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 236 states have (on average 1.2966101694915255) internal successors, (306), 236 states have internal predecessors, (306), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:28:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 468 transitions. [2024-12-01 13:28:55,321 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 468 transitions. Word has length 350 [2024-12-01 13:28:55,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:28:55,321 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 468 transitions. [2024-12-01 13:28:55,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:28:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 468 transitions. [2024-12-01 13:28:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:28:55,323 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:28:55,323 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:28:55,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-01 13:28:55,323 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:28:55,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:28:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash 978162342, now seen corresponding path program 1 times [2024-12-01 13:28:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:28:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332230555] [2024-12-01 13:28:55,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:28:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:28:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:29:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:29:15,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332230555] [2024-12-01 13:29:15,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332230555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:29:15,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:29:15,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:29:15,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140107118] [2024-12-01 13:29:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:29:15,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:29:15,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:29:15,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:29:15,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:29:15,580 INFO L87 Difference]: Start difference. First operand 327 states and 468 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:29:26,182 INFO L93 Difference]: Finished difference Result 413 states and 572 transitions. [2024-12-01 13:29:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-01 13:29:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:29:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:29:26,184 INFO L225 Difference]: With dead ends: 413 [2024-12-01 13:29:26,184 INFO L226 Difference]: Without dead ends: 411 [2024-12-01 13:29:26,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2024-12-01 13:29:26,185 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 116 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:29:26,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1032 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-01 13:29:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-12-01 13:29:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 331. [2024-12-01 13:29:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 240 states have (on average 1.3) internal successors, (312), 240 states have internal predecessors, (312), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:29:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 474 transitions. [2024-12-01 13:29:26,209 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 474 transitions. Word has length 351 [2024-12-01 13:29:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:29:26,210 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 474 transitions. [2024-12-01 13:29:26,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 474 transitions. [2024-12-01 13:29:26,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:29:26,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:29:26,211 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:26,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-01 13:29:26,211 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:29:26,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:26,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1703762345, now seen corresponding path program 1 times [2024-12-01 13:29:26,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:26,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24684941] [2024-12-01 13:29:26,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:29:26,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:29:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:29:34,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24684941] [2024-12-01 13:29:34,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24684941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:29:34,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:29:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:29:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504618073] [2024-12-01 13:29:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:29:34,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:29:34,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:29:34,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:29:34,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:29:34,346 INFO L87 Difference]: Start difference. First operand 331 states and 474 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:29:38,251 INFO L93 Difference]: Finished difference Result 431 states and 592 transitions. [2024-12-01 13:29:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:29:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:29:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:29:38,254 INFO L225 Difference]: With dead ends: 431 [2024-12-01 13:29:38,254 INFO L226 Difference]: Without dead ends: 429 [2024-12-01 13:29:38,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2024-12-01 13:29:38,255 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 204 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:29:38,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 860 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-01 13:29:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-12-01 13:29:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 339. [2024-12-01 13:29:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 248 states have (on average 1.3064516129032258) internal successors, (324), 248 states have internal predecessors, (324), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:29:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 486 transitions. [2024-12-01 13:29:38,279 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 486 transitions. Word has length 351 [2024-12-01 13:29:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:29:38,280 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 486 transitions. [2024-12-01 13:29:38,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 486 transitions. [2024-12-01 13:29:38,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:29:38,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:29:38,281 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:38,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-01 13:29:38,281 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:29:38,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1028355003, now seen corresponding path program 1 times [2024-12-01 13:29:38,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:38,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198031778] [2024-12-01 13:29:38,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:29:38,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:29:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:29:46,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:46,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198031778] [2024-12-01 13:29:46,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198031778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:29:46,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:29:46,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:29:46,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131246853] [2024-12-01 13:29:46,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:29:46,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:29:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:29:46,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:29:46,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:29:46,969 INFO L87 Difference]: Start difference. First operand 339 states and 486 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:29:51,012 INFO L93 Difference]: Finished difference Result 429 states and 590 transitions. [2024-12-01 13:29:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:29:51,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:29:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:29:51,015 INFO L225 Difference]: With dead ends: 429 [2024-12-01 13:29:51,015 INFO L226 Difference]: Without dead ends: 427 [2024-12-01 13:29:51,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2024-12-01 13:29:51,015 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 221 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:29:51,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 893 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-01 13:29:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-12-01 13:29:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 335. [2024-12-01 13:29:51,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 244 states have (on average 1.3073770491803278) internal successors, (319), 244 states have internal predecessors, (319), 81 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-01 13:29:51,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 481 transitions. [2024-12-01 13:29:51,039 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 481 transitions. Word has length 351 [2024-12-01 13:29:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:29:51,040 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 481 transitions. [2024-12-01 13:29:51,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:29:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 481 transitions. [2024-12-01 13:29:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:29:51,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:29:51,041 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:51,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-01 13:29:51,041 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:29:51,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:51,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2147082228, now seen corresponding path program 1 times [2024-12-01 13:29:51,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:51,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326259982] [2024-12-01 13:29:51,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:29:51,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 52 proven. 12 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-12-01 13:30:03,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:30:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326259982] [2024-12-01 13:30:03,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326259982] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:30:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782969302] [2024-12-01 13:30:03,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:30:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:30:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:30:03,774 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:30:03,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 13:30:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:03,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-01 13:30:03,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:30:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 3707 proven. 40 refuted. 0 times theorem prover too weak. 2041 trivial. 0 not checked. [2024-12-01 13:30:04,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:30:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 162 proven. 39 refuted. 0 times theorem prover too weak. 5587 trivial. 0 not checked. [2024-12-01 13:30:05,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782969302] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:30:05,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:30:05,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 7] total 30 [2024-12-01 13:30:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541302273] [2024-12-01 13:30:05,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:30:05,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-01 13:30:05,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:05,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-01 13:30:05,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2024-12-01 13:30:05,846 INFO L87 Difference]: Start difference. First operand 335 states and 481 transitions. Second operand has 30 states, 30 states have (on average 6.433333333333334) internal successors, (193), 30 states have internal predecessors, (193), 5 states have call successors, (94), 3 states have call predecessors, (94), 5 states have return successors, (95), 5 states have call predecessors, (95), 5 states have call successors, (95) [2024-12-01 13:30:17,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:30:17,644 INFO L93 Difference]: Finished difference Result 1389 states and 1897 transitions. [2024-12-01 13:30:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-12-01 13:30:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.433333333333334) internal successors, (193), 30 states have internal predecessors, (193), 5 states have call successors, (94), 3 states have call predecessors, (94), 5 states have return successors, (95), 5 states have call predecessors, (95), 5 states have call successors, (95) Word has length 351 [2024-12-01 13:30:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:30:17,648 INFO L225 Difference]: With dead ends: 1389 [2024-12-01 13:30:17,648 INFO L226 Difference]: Without dead ends: 1154 [2024-12-01 13:30:17,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5421 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=2302, Invalid=13448, Unknown=0, NotChecked=0, Total=15750 [2024-12-01 13:30:17,651 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1744 mSDsluCounter, 5127 mSDsCounter, 0 mSdLazyCounter, 5429 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 6198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 5429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-12-01 13:30:17,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 5579 Invalid, 6198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 5429 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-12-01 13:30:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-12-01 13:30:17,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 392. [2024-12-01 13:30:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 284 states have (on average 1.2640845070422535) internal successors, (359), 285 states have internal predecessors, (359), 94 states have call successors, (94), 13 states have call predecessors, (94), 13 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-01 13:30:17,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 547 transitions. [2024-12-01 13:30:17,692 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 547 transitions. Word has length 351 [2024-12-01 13:30:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:30:17,692 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 547 transitions. [2024-12-01 13:30:17,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.433333333333334) internal successors, (193), 30 states have internal predecessors, (193), 5 states have call successors, (94), 3 states have call predecessors, (94), 5 states have return successors, (95), 5 states have call predecessors, (95), 5 states have call successors, (95) [2024-12-01 13:30:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 547 transitions. [2024-12-01 13:30:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:30:17,693 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:30:17,693 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:30:17,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-01 13:30:17,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-01 13:30:17,894 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:30:17,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:30:17,894 INFO L85 PathProgramCache]: Analyzing trace with hash -42906012, now seen corresponding path program 1 times [2024-12-01 13:30:17,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:30:17,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486778261] [2024-12-01 13:30:17,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:30:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:30:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:30:23,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:30:23,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486778261] [2024-12-01 13:30:23,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486778261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:30:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:30:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:30:23,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171470755] [2024-12-01 13:30:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:30:23,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:30:23,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:23,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:30:23,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:30:23,178 INFO L87 Difference]: Start difference. First operand 392 states and 547 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:30:25,024 INFO L93 Difference]: Finished difference Result 499 states and 670 transitions. [2024-12-01 13:30:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:30:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:30:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:30:25,027 INFO L225 Difference]: With dead ends: 499 [2024-12-01 13:30:25,028 INFO L226 Difference]: Without dead ends: 497 [2024-12-01 13:30:25,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2024-12-01 13:30:25,028 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 128 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:30:25,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 874 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-01 13:30:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-12-01 13:30:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 392. [2024-12-01 13:30:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 284 states have (on average 1.2640845070422535) internal successors, (359), 285 states have internal predecessors, (359), 94 states have call successors, (94), 13 states have call predecessors, (94), 13 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-01 13:30:25,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 547 transitions. [2024-12-01 13:30:25,070 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 547 transitions. Word has length 351 [2024-12-01 13:30:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:30:25,070 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 547 transitions. [2024-12-01 13:30:25,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:25,070 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 547 transitions. [2024-12-01 13:30:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:30:25,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:30:25,071 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:30:25,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-01 13:30:25,071 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:30:25,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:30:25,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1570136597, now seen corresponding path program 1 times [2024-12-01 13:30:25,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:30:25,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155246422] [2024-12-01 13:30:25,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:30:25,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:30:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:30:32,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:30:32,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155246422] [2024-12-01 13:30:32,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155246422] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:30:32,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:30:32,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:30:32,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775813160] [2024-12-01 13:30:32,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:30:32,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:30:32,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:32,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:30:32,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:30:32,035 INFO L87 Difference]: Start difference. First operand 392 states and 547 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:30:36,773 INFO L93 Difference]: Finished difference Result 491 states and 658 transitions. [2024-12-01 13:30:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:30:36,774 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:30:36,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:30:36,776 INFO L225 Difference]: With dead ends: 491 [2024-12-01 13:30:36,776 INFO L226 Difference]: Without dead ends: 489 [2024-12-01 13:30:36,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870 [2024-12-01 13:30:36,776 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 151 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:30:36,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1115 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-01 13:30:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-12-01 13:30:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 386. [2024-12-01 13:30:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 278 states have (on average 1.2625899280575539) internal successors, (351), 279 states have internal predecessors, (351), 94 states have call successors, (94), 13 states have call predecessors, (94), 13 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-01 13:30:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 539 transitions. [2024-12-01 13:30:36,814 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 539 transitions. Word has length 351 [2024-12-01 13:30:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:30:36,814 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 539 transitions. [2024-12-01 13:30:36,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 539 transitions. [2024-12-01 13:30:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-12-01 13:30:36,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:30:36,815 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:30:36,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-01 13:30:36,816 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:30:36,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:30:36,816 INFO L85 PathProgramCache]: Analyzing trace with hash 7286649, now seen corresponding path program 1 times [2024-12-01 13:30:36,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:30:36,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655215255] [2024-12-01 13:30:36,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:30:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:30:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-12-01 13:30:42,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:30:42,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655215255] [2024-12-01 13:30:42,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655215255] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:30:42,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:30:42,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:30:42,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58991596] [2024-12-01 13:30:42,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:30:42,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-01 13:30:42,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:42,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-01 13:30:42,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:30:42,311 INFO L87 Difference]: Start difference. First operand 386 states and 539 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:30:44,343 INFO L93 Difference]: Finished difference Result 485 states and 651 transitions. [2024-12-01 13:30:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:30:44,343 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 351 [2024-12-01 13:30:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:30:44,345 INFO L225 Difference]: With dead ends: 485 [2024-12-01 13:30:44,345 INFO L226 Difference]: Without dead ends: 483 [2024-12-01 13:30:44,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:30:44,346 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 166 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:30:44,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 838 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-01 13:30:44,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-12-01 13:30:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 370. [2024-12-01 13:30:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 262 states have (on average 1.2595419847328244) internal successors, (330), 263 states have internal predecessors, (330), 94 states have call successors, (94), 13 states have call predecessors, (94), 13 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-01 13:30:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 518 transitions. [2024-12-01 13:30:44,393 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 518 transitions. Word has length 351 [2024-12-01 13:30:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:30:44,394 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 518 transitions. [2024-12-01 13:30:44,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-12-01 13:30:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 518 transitions. [2024-12-01 13:30:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-12-01 13:30:44,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:30:44,395 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:30:44,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-01 13:30:44,395 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:30:44,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:30:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1223523217, now seen corresponding path program 1 times [2024-12-01 13:30:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:30:44,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811877580] [2024-12-01 13:30:44,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:30:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:30:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:30:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 5729 trivial. 0 not checked. [2024-12-01 13:30:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:30:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811877580] [2024-12-01 13:30:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811877580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:30:53,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:30:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-01 13:30:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882473972] [2024-12-01 13:30:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:30:53,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:30:53,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:53,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:30:53,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:30:53,758 INFO L87 Difference]: Start difference. First operand 370 states and 518 transitions. Second operand has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-01 13:31:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:31:01,948 INFO L93 Difference]: Finished difference Result 487 states and 652 transitions. [2024-12-01 13:31:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-01 13:31:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 352 [2024-12-01 13:31:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:31:01,950 INFO L225 Difference]: With dead ends: 487 [2024-12-01 13:31:01,951 INFO L226 Difference]: Without dead ends: 485 [2024-12-01 13:31:01,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2024-12-01 13:31:01,951 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 242 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:31:01,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1186 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-01 13:31:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-12-01 13:31:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 376. [2024-12-01 13:31:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 268 states have (on average 1.2649253731343284) internal successors, (339), 269 states have internal predecessors, (339), 94 states have call successors, (94), 13 states have call predecessors, (94), 13 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-01 13:31:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 527 transitions. [2024-12-01 13:31:01,989 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 527 transitions. Word has length 352 [2024-12-01 13:31:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:31:01,989 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 527 transitions. [2024-12-01 13:31:01,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-01 13:31:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 527 transitions. [2024-12-01 13:31:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-12-01 13:31:01,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:31:01,991 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:31:01,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-01 13:31:01,991 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:31:01,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:31:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1483096177, now seen corresponding path program 1 times [2024-12-01 13:31:01,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:31:01,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960336163] [2024-12-01 13:31:01,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:31:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:31:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:31:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5788 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 5729 trivial. 0 not checked. [2024-12-01 13:31:09,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:31:09,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960336163] [2024-12-01 13:31:09,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960336163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:31:09,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:31:09,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-01 13:31:09,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304281211] [2024-12-01 13:31:09,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:31:09,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:31:09,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:31:09,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:31:09,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:31:09,667 INFO L87 Difference]: Start difference. First operand 376 states and 527 transitions. Second operand has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-01 13:31:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:31:17,539 INFO L93 Difference]: Finished difference Result 465 states and 624 transitions. [2024-12-01 13:31:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-01 13:31:17,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 352 [2024-12-01 13:31:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:31:17,542 INFO L225 Difference]: With dead ends: 465 [2024-12-01 13:31:17,542 INFO L226 Difference]: Without dead ends: 228 [2024-12-01 13:31:17,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 13:31:17,543 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 208 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:31:17,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 861 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-01 13:31:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-12-01 13:31:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2024-12-01 13:31:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 145 states have internal predecessors, (183), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-01 13:31:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 291 transitions. [2024-12-01 13:31:17,581 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 291 transitions. Word has length 352 [2024-12-01 13:31:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:31:17,581 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 291 transitions. [2024-12-01 13:31:17,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 18 states have internal predecessors, (83), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-01 13:31:17,581 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 291 transitions. [2024-12-01 13:31:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-12-01 13:31:17,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:31:17,584 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:31:17,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-01 13:31:17,584 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:31:17,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:31:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1064917502, now seen corresponding path program 1 times [2024-12-01 13:31:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:31:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696606372] [2024-12-01 13:31:17,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:31:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:31:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:31:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5790 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-12-01 13:31:37,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:31:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696606372] [2024-12-01 13:31:37,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696606372] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:31:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687732030] [2024-12-01 13:31:37,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:31:37,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:31:37,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:31:37,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:31:37,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a35bc2-1f53-4f30-ab84-56038e1c8860/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 13:31:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:31:37,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-01 13:31:37,628 INFO L279 TraceCheckSpWp]: Computing forward predicates...