./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.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_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB --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 1ba4c7d0d6c78135dc83153b960bec2a5b9f7da175d8a397216db5ad620f7338 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:49:33,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:49:33,823 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:49:33,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:49:33,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:49:33,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:49:33,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:49:33,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:49:33,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:49:33,870 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:49:33,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:49:33,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:49:33,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:49:33,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:49:33,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:49:33,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:49:33,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:49:33,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:49:33,875 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:33,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:33,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:33,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:49:33,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:49:33,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:49:33,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:49:33,877 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_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 1ba4c7d0d6c78135dc83153b960bec2a5b9f7da175d8a397216db5ad620f7338 [2024-11-27 19:49:34,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:49:34,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:49:34,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:49:34,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:49:34,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:49:34,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.i [2024-11-27 19:49:37,469 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/data/646e1c4ca/18e60a7e14d4415ba1b9378b0055ffc6/FLAGba1bb5390 [2024-11-27 19:49:37,919 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:49:37,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.i [2024-11-27 19:49:37,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/data/646e1c4ca/18e60a7e14d4415ba1b9378b0055ffc6/FLAGba1bb5390 [2024-11-27 19:49:37,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/data/646e1c4ca/18e60a7e14d4415ba1b9378b0055ffc6 [2024-11-27 19:49:37,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:49:37,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:49:37,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:37,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:49:37,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:49:37,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:37" (1/1) ... [2024-11-27 19:49:37,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a086b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:37, skipping insertion in model container [2024-11-27 19:49:37,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:37" (1/1) ... [2024-11-27 19:49:38,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:49:38,241 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_2964ca04-8276-4765-a3d2-f8187ec206f4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.i[915,928] [2024-11-27 19:49:38,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:38,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:49:38,510 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_2964ca04-8276-4765-a3d2-f8187ec206f4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-6.i[915,928] [2024-11-27 19:49:38,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:38,705 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:49:38,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38 WrapperNode [2024-11-27 19:49:38,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:38,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:38,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:49:38,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:49:38,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:38,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:38,884 INFO L138 Inliner]: procedures = 26, calls = 112, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 779 [2024-11-27 19:49:38,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:38,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:49:38,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:49:38,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:49:38,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:38,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:38,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,017 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:49:39,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:49:39,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:49:39,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:49:39,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:49:39,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (1/1) ... [2024-11-27 19:49:39,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:39,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:39,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:39,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:49:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:49:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:49:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:49:39,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:49:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:49:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:49:39,399 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:49:39,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:49:41,090 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-27 19:49:41,090 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:49:41,117 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:49:41,121 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:49:41,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:41 BoogieIcfgContainer [2024-11-27 19:49:41,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:49:41,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:49:41,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:49:41,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:49:41,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:49:37" (1/3) ... [2024-11-27 19:49:41,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f5b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:41, skipping insertion in model container [2024-11-27 19:49:41,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:38" (2/3) ... [2024-11-27 19:49:41,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f5b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:41, skipping insertion in model container [2024-11-27 19:49:41,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:41" (3/3) ... [2024-11-27 19:49:41,134 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-6.i [2024-11-27 19:49:41,153 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:49:41,156 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-6.i that has 2 procedures, 321 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:49:41,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:49:41,259 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;@7f443f5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:49:41,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:49:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 321 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 220 states have internal predecessors, (351), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 19:49:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-27 19:49:41,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:41,313 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:41,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:41,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:41,321 INFO L85 PathProgramCache]: Analyzing trace with hash -665391392, now seen corresponding path program 1 times [2024-11-27 19:49:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226934106] [2024-11-27 19:49:41,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-27 19:49:42,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:42,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226934106] [2024-11-27 19:49:42,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226934106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:49:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840974636] [2024-11-27 19:49:42,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:42,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:49:42,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:42,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:49:42,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:49:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:42,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:49:42,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:49:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-27 19:49:43,068 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:49:43,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840974636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:43,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:49:43,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:49:43,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540206387] [2024-11-27 19:49:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:43,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:49:43,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:43,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:49:43,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:49:43,108 INFO L87 Difference]: Start difference. First operand has 321 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 220 states have internal predecessors, (351), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-27 19:49:43,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:43,192 INFO L93 Difference]: Finished difference Result 635 states and 1191 transitions. [2024-11-27 19:49:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:49:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) Word has length 636 [2024-11-27 19:49:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:43,210 INFO L225 Difference]: With dead ends: 635 [2024-11-27 19:49:43,210 INFO L226 Difference]: Without dead ends: 317 [2024-11-27 19:49:43,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:49:43,225 INFO L435 NwaCegarLoop]: 538 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, 538 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:43,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:43,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-27 19:49:43,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-27 19:49:43,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 216 states have (on average 1.5740740740740742) internal successors, (340), 216 states have internal predecessors, (340), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 19:49:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 538 transitions. [2024-11-27 19:49:43,354 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 538 transitions. Word has length 636 [2024-11-27 19:49:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:43,355 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 538 transitions. [2024-11-27 19:49:43,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-27 19:49:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 538 transitions. [2024-11-27 19:49:43,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-27 19:49:43,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:43,381 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:43,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:49:43,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:49:43,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:43,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:43,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1982460906, now seen corresponding path program 1 times [2024-11-27 19:49:43,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517545720] [2024-11-27 19:49:43,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:44,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:44,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517545720] [2024-11-27 19:49:44,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517545720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:44,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:44,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:44,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489388135] [2024-11-27 19:49:44,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:44,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:44,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:44,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:44,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:44,694 INFO L87 Difference]: Start difference. First operand 317 states and 538 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:44,875 INFO L93 Difference]: Finished difference Result 797 states and 1364 transitions. [2024-11-27 19:49:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 637 [2024-11-27 19:49:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:44,886 INFO L225 Difference]: With dead ends: 797 [2024-11-27 19:49:44,887 INFO L226 Difference]: Without dead ends: 483 [2024-11-27 19:49:44,892 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 [2024-11-27 19:49:44,893 INFO L435 NwaCegarLoop]: 679 mSDtfsCounter, 280 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:44,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1184 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:49:44,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-27 19:49:44,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 480. [2024-11-27 19:49:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 365 states have (on average 1.632876712328767) internal successors, (596), 366 states have internal predecessors, (596), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-27 19:49:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 820 transitions. [2024-11-27 19:49:44,994 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 820 transitions. Word has length 637 [2024-11-27 19:49:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:44,996 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 820 transitions. [2024-11-27 19:49:44,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:45,000 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 820 transitions. [2024-11-27 19:49:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2024-11-27 19:49:45,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:45,023 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:45,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:49:45,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:45,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1174833141, now seen corresponding path program 1 times [2024-11-27 19:49:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:45,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110324820] [2024-11-27 19:49:45,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:45,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110324820] [2024-11-27 19:49:45,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110324820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:45,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:45,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:45,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626280115] [2024-11-27 19:49:45,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:45,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:45,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:45,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:45,648 INFO L87 Difference]: Start difference. First operand 480 states and 820 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:45,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:45,823 INFO L93 Difference]: Finished difference Result 1275 states and 2185 transitions. [2024-11-27 19:49:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:45,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 639 [2024-11-27 19:49:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:45,834 INFO L225 Difference]: With dead ends: 1275 [2024-11-27 19:49:45,839 INFO L226 Difference]: Without dead ends: 798 [2024-11-27 19:49:45,841 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 [2024-11-27 19:49:45,842 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 318 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:45,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1255 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:49:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-27 19:49:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 795. [2024-11-27 19:49:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 620 states have (on average 1.6370967741935485) internal successors, (1015), 623 states have internal predecessors, (1015), 170 states have call successors, (170), 4 states have call predecessors, (170), 4 states have return successors, (170), 167 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-27 19:49:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1355 transitions. [2024-11-27 19:49:45,976 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1355 transitions. Word has length 639 [2024-11-27 19:49:45,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:45,979 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1355 transitions. [2024-11-27 19:49:45,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1355 transitions. [2024-11-27 19:49:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-27 19:49:46,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:46,006 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:46,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:49:46,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:46,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash -977782690, now seen corresponding path program 1 times [2024-11-27 19:49:46,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:46,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476326513] [2024-11-27 19:49:46,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:46,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476326513] [2024-11-27 19:49:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476326513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:46,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:46,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:46,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619133422] [2024-11-27 19:49:46,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:46,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:46,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:46,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:46,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:46,557 INFO L87 Difference]: Start difference. First operand 795 states and 1355 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:46,722 INFO L93 Difference]: Finished difference Result 2232 states and 3813 transitions. [2024-11-27 19:49:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 640 [2024-11-27 19:49:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:46,740 INFO L225 Difference]: With dead ends: 2232 [2024-11-27 19:49:46,740 INFO L226 Difference]: Without dead ends: 1440 [2024-11-27 19:49:46,744 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 [2024-11-27 19:49:46,744 INFO L435 NwaCegarLoop]: 692 mSDtfsCounter, 348 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:46,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1216 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-11-27 19:49:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1437. [2024-11-27 19:49:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1132 states have (on average 1.6386925795053005) internal successors, (1855), 1139 states have internal predecessors, (1855), 296 states have call successors, (296), 8 states have call predecessors, (296), 8 states have return successors, (296), 289 states have call predecessors, (296), 296 states have call successors, (296) [2024-11-27 19:49:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2447 transitions. [2024-11-27 19:49:46,940 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2447 transitions. Word has length 640 [2024-11-27 19:49:46,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:46,944 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2447 transitions. [2024-11-27 19:49:46,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2447 transitions. [2024-11-27 19:49:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-27 19:49:46,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:46,953 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:46,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:49:46,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:46,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1421683364, now seen corresponding path program 1 times [2024-11-27 19:49:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505088747] [2024-11-27 19:49:46,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:47,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:47,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505088747] [2024-11-27 19:49:47,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505088747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:47,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:47,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:47,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133825110] [2024-11-27 19:49:47,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:47,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:47,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:47,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:47,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:47,405 INFO L87 Difference]: Start difference. First operand 1437 states and 2447 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:47,586 INFO L93 Difference]: Finished difference Result 2883 states and 4901 transitions. [2024-11-27 19:49:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:47,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 640 [2024-11-27 19:49:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:47,605 INFO L225 Difference]: With dead ends: 2883 [2024-11-27 19:49:47,605 INFO L226 Difference]: Without dead ends: 1449 [2024-11-27 19:49:47,611 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 [2024-11-27 19:49:47,613 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 290 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:47,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1062 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:49:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-27 19:49:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1123. [2024-11-27 19:49:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 936 states have (on average 1.6666666666666667) internal successors, (1560), 939 states have internal predecessors, (1560), 180 states have call successors, (180), 6 states have call predecessors, (180), 6 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-27 19:49:47,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1920 transitions. [2024-11-27 19:49:47,762 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1920 transitions. Word has length 640 [2024-11-27 19:49:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:47,765 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1920 transitions. [2024-11-27 19:49:47,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1920 transitions. [2024-11-27 19:49:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-27 19:49:47,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:47,779 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:47,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:49:47,779 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:47,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1342605212, now seen corresponding path program 1 times [2024-11-27 19:49:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:47,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953673074] [2024-11-27 19:49:47,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953673074] [2024-11-27 19:49:48,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953673074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:48,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:48,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161315286] [2024-11-27 19:49:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:48,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:48,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:48,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:48,235 INFO L87 Difference]: Start difference. First operand 1123 states and 1920 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:48,388 INFO L93 Difference]: Finished difference Result 2255 states and 3846 transitions. [2024-11-27 19:49:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:48,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 640 [2024-11-27 19:49:48,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:48,399 INFO L225 Difference]: With dead ends: 2255 [2024-11-27 19:49:48,399 INFO L226 Difference]: Without dead ends: 1135 [2024-11-27 19:49:48,402 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 [2024-11-27 19:49:48,403 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 242 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:48,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1102 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:49:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-27 19:49:48,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1005. [2024-11-27 19:49:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 844 states have (on average 1.6635071090047393) internal successors, (1404), 845 states have internal predecessors, (1404), 154 states have call successors, (154), 6 states have call predecessors, (154), 6 states have return successors, (154), 153 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-27 19:49:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1712 transitions. [2024-11-27 19:49:48,481 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1712 transitions. Word has length 640 [2024-11-27 19:49:48,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:48,483 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1712 transitions. [2024-11-27 19:49:48,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1712 transitions. [2024-11-27 19:49:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-27 19:49:48,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:48,491 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:48,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:49:48,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:48,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1545957557, now seen corresponding path program 1 times [2024-11-27 19:49:48,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:48,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140270073] [2024-11-27 19:49:48,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:48,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:48,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140270073] [2024-11-27 19:49:48,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140270073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:48,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:48,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:48,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26912824] [2024-11-27 19:49:48,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:48,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:48,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:48,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:48,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:48,909 INFO L87 Difference]: Start difference. First operand 1005 states and 1712 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:49,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:49,085 INFO L93 Difference]: Finished difference Result 2743 states and 4688 transitions. [2024-11-27 19:49:49,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:49,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 641 [2024-11-27 19:49:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:49,098 INFO L225 Difference]: With dead ends: 2743 [2024-11-27 19:49:49,098 INFO L226 Difference]: Without dead ends: 1741 [2024-11-27 19:49:49,101 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 [2024-11-27 19:49:49,102 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 306 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:49,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1057 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:49:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-11-27 19:49:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1738. [2024-11-27 19:49:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1449 states have (on average 1.6583850931677018) internal successors, (2403), 1452 states have internal predecessors, (2403), 276 states have call successors, (276), 12 states have call predecessors, (276), 12 states have return successors, (276), 273 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-27 19:49:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2955 transitions. [2024-11-27 19:49:49,216 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2955 transitions. Word has length 641 [2024-11-27 19:49:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:49,218 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2955 transitions. [2024-11-27 19:49:49,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2955 transitions. [2024-11-27 19:49:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-27 19:49:49,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:49,227 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:49,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:49:49,227 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:49,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:49,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1160661837, now seen corresponding path program 1 times [2024-11-27 19:49:49,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:49,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844264796] [2024-11-27 19:49:49,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:49,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844264796] [2024-11-27 19:49:49,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844264796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:49,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:49,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:49,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807768405] [2024-11-27 19:49:49,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:49,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:49,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:49,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:49,555 INFO L87 Difference]: Start difference. First operand 1738 states and 2955 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:49,780 INFO L93 Difference]: Finished difference Result 4349 states and 7343 transitions. [2024-11-27 19:49:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 641 [2024-11-27 19:49:49,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:49,797 INFO L225 Difference]: With dead ends: 4349 [2024-11-27 19:49:49,798 INFO L226 Difference]: Without dead ends: 2614 [2024-11-27 19:49:49,803 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 [2024-11-27 19:49:49,804 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 296 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:49,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1080 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2614 states. [2024-11-27 19:49:50,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2614 to 2611. [2024-11-27 19:49:50,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2051 states have (on average 1.6006825938566553) internal successors, (3283), 2058 states have internal predecessors, (3283), 535 states have call successors, (535), 24 states have call predecessors, (535), 24 states have return successors, (535), 528 states have call predecessors, (535), 535 states have call successors, (535) [2024-11-27 19:49:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 4353 transitions. [2024-11-27 19:49:50,082 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 4353 transitions. Word has length 641 [2024-11-27 19:49:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:50,084 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 4353 transitions. [2024-11-27 19:49:50,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 4353 transitions. [2024-11-27 19:49:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-27 19:49:50,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:50,097 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:50,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:49:50,098 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:50,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash 139593483, now seen corresponding path program 1 times [2024-11-27 19:49:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:50,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443908950] [2024-11-27 19:49:50,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:50,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443908950] [2024-11-27 19:49:50,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443908950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:50,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:50,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020465976] [2024-11-27 19:49:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:50,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:50,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:50,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:50,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:50,859 INFO L87 Difference]: Start difference. First operand 2611 states and 4353 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:51,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:51,234 INFO L93 Difference]: Finished difference Result 7827 states and 13053 transitions. [2024-11-27 19:49:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:51,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 641 [2024-11-27 19:49:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:51,270 INFO L225 Difference]: With dead ends: 7827 [2024-11-27 19:49:51,270 INFO L226 Difference]: Without dead ends: 5219 [2024-11-27 19:49:51,279 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 [2024-11-27 19:49:51,279 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 327 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:51,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1077 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:51,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2024-11-27 19:49:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 5201. [2024-11-27 19:49:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 4082 states have (on average 1.5957863792258697) internal successors, (6514), 4096 states have internal predecessors, (6514), 1070 states have call successors, (1070), 48 states have call predecessors, (1070), 48 states have return successors, (1070), 1056 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-11-27 19:49:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 8654 transitions. [2024-11-27 19:49:51,749 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 8654 transitions. Word has length 641 [2024-11-27 19:49:51,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:51,750 INFO L471 AbstractCegarLoop]: Abstraction has 5201 states and 8654 transitions. [2024-11-27 19:49:51,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:51,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 8654 transitions. [2024-11-27 19:49:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-27 19:49:51,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:51,763 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:51,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:49:51,763 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:51,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1068494449, now seen corresponding path program 1 times [2024-11-27 19:49:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:51,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812555319] [2024-11-27 19:49:51,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:51,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:52,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:52,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812555319] [2024-11-27 19:49:52,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812555319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:52,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:52,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:52,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690293126] [2024-11-27 19:49:52,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:52,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:52,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:52,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:52,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:52,524 INFO L87 Difference]: Start difference. First operand 5201 states and 8654 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:53,197 INFO L93 Difference]: Finished difference Result 15453 states and 25724 transitions. [2024-11-27 19:49:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:53,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-27 19:49:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:53,263 INFO L225 Difference]: With dead ends: 15453 [2024-11-27 19:49:53,263 INFO L226 Difference]: Without dead ends: 10255 [2024-11-27 19:49:53,281 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 [2024-11-27 19:49:53,282 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 494 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:53,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1433 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:53,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2024-11-27 19:49:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 7505. [2024-11-27 19:49:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 6386 states have (on average 1.6626996554963984) internal successors, (10618), 6400 states have internal predecessors, (10618), 1070 states have call successors, (1070), 48 states have call predecessors, (1070), 48 states have return successors, (1070), 1056 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-11-27 19:49:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 12758 transitions. [2024-11-27 19:49:53,895 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 12758 transitions. Word has length 642 [2024-11-27 19:49:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:53,897 INFO L471 AbstractCegarLoop]: Abstraction has 7505 states and 12758 transitions. [2024-11-27 19:49:53,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:53,897 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 12758 transitions. [2024-11-27 19:49:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-27 19:49:53,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:53,912 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:53,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:49:53,912 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:53,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1886142899, now seen corresponding path program 1 times [2024-11-27 19:49:53,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:53,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976645442] [2024-11-27 19:49:53,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:53,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:54,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:54,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976645442] [2024-11-27 19:49:54,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976645442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:54,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:54,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:49:54,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687282765] [2024-11-27 19:49:54,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:54,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:49:54,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:54,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:49:54,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:49:54,803 INFO L87 Difference]: Start difference. First operand 7505 states and 12758 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:55,428 INFO L93 Difference]: Finished difference Result 22509 states and 38268 transitions. [2024-11-27 19:49:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:49:55,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-27 19:49:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:55,490 INFO L225 Difference]: With dead ends: 22509 [2024-11-27 19:49:55,490 INFO L226 Difference]: Without dead ends: 15007 [2024-11-27 19:49:55,511 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 [2024-11-27 19:49:55,512 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 304 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:55,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1067 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:49:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15007 states. [2024-11-27 19:49:56,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15007 to 15005. [2024-11-27 19:49:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15005 states, 12768 states have (on average 1.6616541353383458) internal successors, (21216), 12796 states have internal predecessors, (21216), 2140 states have call successors, (2140), 96 states have call predecessors, (2140), 96 states have return successors, (2140), 2112 states have call predecessors, (2140), 2140 states have call successors, (2140) [2024-11-27 19:49:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15005 states to 15005 states and 25496 transitions. [2024-11-27 19:49:56,740 INFO L78 Accepts]: Start accepts. Automaton has 15005 states and 25496 transitions. Word has length 642 [2024-11-27 19:49:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:49:56,742 INFO L471 AbstractCegarLoop]: Abstraction has 15005 states and 25496 transitions. [2024-11-27 19:49:56,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 15005 states and 25496 transitions. [2024-11-27 19:49:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-27 19:49:56,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:49:56,760 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:49:56,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:49:56,761 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:49:56,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1128960719, now seen corresponding path program 1 times [2024-11-27 19:49:56,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084903261] [2024-11-27 19:49:56,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:56,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:49:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084903261] [2024-11-27 19:49:57,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084903261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:57,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:57,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:49:57,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836338695] [2024-11-27 19:49:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:57,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:49:57,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:57,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:49:57,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:49:57,452 INFO L87 Difference]: Start difference. First operand 15005 states and 25496 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:49:58,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:49:58,727 INFO L93 Difference]: Finished difference Result 36270 states and 61837 transitions. [2024-11-27 19:49:58,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:49:58,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 642 [2024-11-27 19:49:58,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:49:58,817 INFO L225 Difference]: With dead ends: 36270 [2024-11-27 19:49:58,818 INFO L226 Difference]: Without dead ends: 21268 [2024-11-27 19:49:58,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:49:58,863 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 526 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:49:58,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1595 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:49:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21268 states. [2024-11-27 19:49:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21268 to 20754. [2024-11-27 19:49:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20754 states, 18413 states have (on average 1.6853853255851843) internal successors, (31033), 18441 states have internal predecessors, (31033), 2239 states have call successors, (2239), 101 states have call predecessors, (2239), 101 states have return successors, (2239), 2211 states have call predecessors, (2239), 2239 states have call successors, (2239) [2024-11-27 19:50:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20754 states to 20754 states and 35511 transitions. [2024-11-27 19:50:00,049 INFO L78 Accepts]: Start accepts. Automaton has 20754 states and 35511 transitions. Word has length 642 [2024-11-27 19:50:00,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:00,050 INFO L471 AbstractCegarLoop]: Abstraction has 20754 states and 35511 transitions. [2024-11-27 19:50:00,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 20754 states and 35511 transitions. [2024-11-27 19:50:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 19:50:00,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:00,139 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:00,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:50:00,139 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:00,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1960615798, now seen corresponding path program 1 times [2024-11-27 19:50:00,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:00,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042726716] [2024-11-27 19:50:00,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:50:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042726716] [2024-11-27 19:50:00,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042726716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:00,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:00,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:00,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399108305] [2024-11-27 19:50:00,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:00,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:00,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:00,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:00,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:00,994 INFO L87 Difference]: Start difference. First operand 20754 states and 35511 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:02,130 INFO L93 Difference]: Finished difference Result 49022 states and 83713 transitions. [2024-11-27 19:50:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:02,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 19:50:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:02,242 INFO L225 Difference]: With dead ends: 49022 [2024-11-27 19:50:02,242 INFO L226 Difference]: Without dead ends: 31328 [2024-11-27 19:50:02,278 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 [2024-11-27 19:50:02,280 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 526 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:02,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1398 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31328 states. [2024-11-27 19:50:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31328 to 30774. [2024-11-27 19:50:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30774 states, 27109 states have (on average 1.6785938249289905) internal successors, (45505), 27153 states have internal predecessors, (45505), 3499 states have call successors, (3499), 165 states have call predecessors, (3499), 165 states have return successors, (3499), 3455 states have call predecessors, (3499), 3499 states have call successors, (3499) [2024-11-27 19:50:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30774 states to 30774 states and 52503 transitions. [2024-11-27 19:50:03,784 INFO L78 Accepts]: Start accepts. Automaton has 30774 states and 52503 transitions. Word has length 643 [2024-11-27 19:50:03,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:03,785 INFO L471 AbstractCegarLoop]: Abstraction has 30774 states and 52503 transitions. [2024-11-27 19:50:03,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 30774 states and 52503 transitions. [2024-11-27 19:50:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 19:50:03,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:03,808 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:03,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:50:03,809 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:03,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:03,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1399916020, now seen corresponding path program 1 times [2024-11-27 19:50:03,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:03,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7016308] [2024-11-27 19:50:03,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:03,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:50:05,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:05,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7016308] [2024-11-27 19:50:05,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7016308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:05,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:05,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:50:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369104223] [2024-11-27 19:50:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:05,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:05,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:05,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:05,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:05,349 INFO L87 Difference]: Start difference. First operand 30774 states and 52503 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:08,659 INFO L93 Difference]: Finished difference Result 91734 states and 156667 transitions. [2024-11-27 19:50:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:08,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 19:50:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:08,918 INFO L225 Difference]: With dead ends: 91734 [2024-11-27 19:50:08,918 INFO L226 Difference]: Without dead ends: 61500 [2024-11-27 19:50:08,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:08,983 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 343 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:08,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1357 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:50:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61500 states. [2024-11-27 19:50:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61500 to 61498. [2024-11-27 19:50:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61498 states, 54273 states have (on average 1.6740368138853574) internal successors, (90855), 54361 states have internal predecessors, (90855), 6899 states have call successors, (6899), 325 states have call predecessors, (6899), 325 states have return successors, (6899), 6811 states have call predecessors, (6899), 6899 states have call successors, (6899) [2024-11-27 19:50:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61498 states to 61498 states and 104653 transitions. [2024-11-27 19:50:12,147 INFO L78 Accepts]: Start accepts. Automaton has 61498 states and 104653 transitions. Word has length 643 [2024-11-27 19:50:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:12,148 INFO L471 AbstractCegarLoop]: Abstraction has 61498 states and 104653 transitions. [2024-11-27 19:50:12,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 61498 states and 104653 transitions. [2024-11-27 19:50:12,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 19:50:12,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:12,189 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:12,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:50:12,190 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:12,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash -523897014, now seen corresponding path program 1 times [2024-11-27 19:50:12,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:12,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990271124] [2024-11-27 19:50:12,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:12,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:50:13,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990271124] [2024-11-27 19:50:13,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990271124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:13,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:13,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:50:13,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146288465] [2024-11-27 19:50:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:13,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:50:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:13,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:50:13,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:50:13,837 INFO L87 Difference]: Start difference. First operand 61498 states and 104653 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:19,065 INFO L93 Difference]: Finished difference Result 215901 states and 368132 transitions. [2024-11-27 19:50:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:50:19,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 19:50:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:19,557 INFO L225 Difference]: With dead ends: 215901 [2024-11-27 19:50:19,557 INFO L226 Difference]: Without dead ends: 161203 [2024-11-27 19:50:19,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:50:19,662 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 1073 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:19,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 3178 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:50:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161203 states. [2024-11-27 19:50:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161203 to 131149. [2024-11-27 19:50:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131149 states, 120468 states have (on average 1.6935036690241392) internal successors, (204013), 120748 states have internal predecessors, (204013), 9971 states have call successors, (9971), 709 states have call predecessors, (9971), 709 states have return successors, (9971), 9691 states have call predecessors, (9971), 9971 states have call successors, (9971) [2024-11-27 19:50:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131149 states to 131149 states and 223955 transitions. [2024-11-27 19:50:25,173 INFO L78 Accepts]: Start accepts. Automaton has 131149 states and 223955 transitions. Word has length 643 [2024-11-27 19:50:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:25,174 INFO L471 AbstractCegarLoop]: Abstraction has 131149 states and 223955 transitions. [2024-11-27 19:50:25,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 19:50:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 131149 states and 223955 transitions. [2024-11-27 19:50:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 19:50:25,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:25,261 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:25,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:50:25,262 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:25,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1693733384, now seen corresponding path program 1 times [2024-11-27 19:50:25,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:25,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564833156] [2024-11-27 19:50:25,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:25,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 33 proven. 261 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-11-27 19:50:27,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:27,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564833156] [2024-11-27 19:50:27,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564833156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:27,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038488973] [2024-11-27 19:50:27,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:27,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:27,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:27,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:27,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:27,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:50:27,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 6140 proven. 237 refuted. 0 times theorem prover too weak. 13027 trivial. 0 not checked. [2024-11-27 19:50:28,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 57 proven. 237 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-11-27 19:50:29,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038488973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:29,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:29,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-27 19:50:29,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604121817] [2024-11-27 19:50:29,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:29,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:50:29,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:29,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:50:29,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:50:29,236 INFO L87 Difference]: Start difference. First operand 131149 states and 223955 transitions. Second operand has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (265), 2 states have call predecessors, (265), 4 states have return successors, (267), 3 states have call predecessors, (267), 3 states have call successors, (267) [2024-11-27 19:50:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:41,783 INFO L93 Difference]: Finished difference Result 411268 states and 690608 transitions. [2024-11-27 19:50:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 19:50:41,783 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (265), 2 states have call predecessors, (265), 4 states have return successors, (267), 3 states have call predecessors, (267), 3 states have call successors, (267) Word has length 643 [2024-11-27 19:50:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:42,550 INFO L225 Difference]: With dead ends: 411268 [2024-11-27 19:50:42,551 INFO L226 Difference]: Without dead ends: 280344 [2024-11-27 19:50:42,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1328 GetRequests, 1288 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 19:50:42,746 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 1921 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:42,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 1999 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 19:50:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280344 states. [2024-11-27 19:50:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280344 to 179038. [2024-11-27 19:50:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179038 states, 161634 states have (on average 1.6399643639333308) internal successors, (265074), 162394 states have internal predecessors, (265074), 15635 states have call successors, (15635), 1768 states have call predecessors, (15635), 1768 states have return successors, (15635), 14875 states have call predecessors, (15635), 15635 states have call successors, (15635) [2024-11-27 19:50:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179038 states to 179038 states and 296344 transitions. [2024-11-27 19:50:53,708 INFO L78 Accepts]: Start accepts. Automaton has 179038 states and 296344 transitions. Word has length 643 [2024-11-27 19:50:53,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:53,709 INFO L471 AbstractCegarLoop]: Abstraction has 179038 states and 296344 transitions. [2024-11-27 19:50:53,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (265), 2 states have call predecessors, (265), 4 states have return successors, (267), 3 states have call predecessors, (267), 3 states have call successors, (267) [2024-11-27 19:50:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 179038 states and 296344 transitions. [2024-11-27 19:50:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 19:50:53,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:53,804 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:53,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:50:54,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2964ca04-8276-4765-a3d2-f8187ec206f4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 19:50:54,005 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:54,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1377658121, now seen corresponding path program 1 times [2024-11-27 19:50:54,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:54,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253460462] [2024-11-27 19:50:54,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:54,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 19:50:56,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:56,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253460462] [2024-11-27 19:50:56,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253460462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:56,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 19:50:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144358803] [2024-11-27 19:50:56,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:56,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:50:56,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:56,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:50:56,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:50:56,319 INFO L87 Difference]: Start difference. First operand 179038 states and 296344 transitions. Second operand has 8 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 2 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99)