./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.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_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da17d270b97e746bcc3bb567476dd5627c9f96457d30034078a1fde8f8099861 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:14:36,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:14:36,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:14:36,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:14:36,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:14:36,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:14:36,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:14:36,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:14:36,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:14:36,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:14:36,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:14:36,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:14:36,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:14:36,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:14:36,397 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:14:36,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:14:36,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:14:36,399 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:14:36,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:14:36,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:14:36,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:14:36,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:14:36,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:14:36,401 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_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da17d270b97e746bcc3bb567476dd5627c9f96457d30034078a1fde8f8099861 [2024-12-02 10:14:36,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:14:36,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:14:36,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:14:36,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:14:36,632 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:14:36,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i [2024-12-02 10:14:39,269 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/data/41a79ff85/acad6eb00d0b414d9543eebc31a4996f/FLAGb655665bd [2024-12-02 10:14:39,490 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:14:39,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i [2024-12-02 10:14:39,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/data/41a79ff85/acad6eb00d0b414d9543eebc31a4996f/FLAGb655665bd [2024-12-02 10:14:39,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/data/41a79ff85/acad6eb00d0b414d9543eebc31a4996f [2024-12-02 10:14:39,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:14:39,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:14:39,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:14:39,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:14:39,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:14:39,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:39" (1/1) ... [2024-12-02 10:14:39,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f02431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:39, skipping insertion in model container [2024-12-02 10:14:39,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:39" (1/1) ... [2024-12-02 10:14:39,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:14:39,992 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_415eb0b5-3326-4880-9996-c19ab13e0ae2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i[916,929] [2024-12-02 10:14:40,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:14:40,061 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:14:40,071 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_415eb0b5-3326-4880-9996-c19ab13e0ae2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-66.i[916,929] [2024-12-02 10:14:40,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:14:40,132 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:14:40,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40 WrapperNode [2024-12-02 10:14:40,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:14:40,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:14:40,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:14:40,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:14:40,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,198 INFO L138 Inliner]: procedures = 27, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 426 [2024-12-02 10:14:40,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:14:40,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:14:40,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:14:40,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:14:40,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,238 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-12-02 10:14:40,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:14:40,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:14:40,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:14:40,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:14:40,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (1/1) ... [2024-12-02 10:14:40,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:14:40,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:14:40,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:14:40,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:14:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:14:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 10:14:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 10:14:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:14:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:14:40,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:14:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:14:40,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:14:40,453 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:14:40,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:14:40,881 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 10:14:40,881 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:14:40,891 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:14:40,891 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:14:40,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:14:40 BoogieIcfgContainer [2024-12-02 10:14:40,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:14:40,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:14:40,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:14:40,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:14:40,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:14:39" (1/3) ... [2024-12-02 10:14:40,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5378b435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:14:40, skipping insertion in model container [2024-12-02 10:14:40,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:40" (2/3) ... [2024-12-02 10:14:40,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5378b435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:14:40, skipping insertion in model container [2024-12-02 10:14:40,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:14:40" (3/3) ... [2024-12-02 10:14:40,899 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-66.i [2024-12-02 10:14:40,911 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:14:40,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-66.i that has 2 procedures, 86 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:14:40,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:14:40,967 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;@642353c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:14:40,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:14:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:14:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:14:40,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:40,979 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:40,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:40,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash -966320857, now seen corresponding path program 1 times [2024-12-02 10:14:40,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:40,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176306193] [2024-12-02 10:14:40,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:40,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:41,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:41,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176306193] [2024-12-02 10:14:41,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176306193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:41,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:41,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:14:41,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993356146] [2024-12-02 10:14:41,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:41,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:41,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:41,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:41,482 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:41,544 INFO L93 Difference]: Finished difference Result 168 states and 262 transitions. [2024-12-02 10:14:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-12-02 10:14:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:41,553 INFO L225 Difference]: With dead ends: 168 [2024-12-02 10:14:41,553 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 10:14:41,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:41,559 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:41,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:14:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 10:14:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-12-02 10:14:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:14:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-12-02 10:14:41,616 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 109 [2024-12-02 10:14:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:41,618 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-12-02 10:14:41,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-12-02 10:14:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:14:41,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:41,621 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:41,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:14:41,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:41,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash 808686505, now seen corresponding path program 1 times [2024-12-02 10:14:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:41,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538504323] [2024-12-02 10:14:41,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:41,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:41,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:41,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538504323] [2024-12-02 10:14:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538504323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:41,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:41,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:14:41,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461302194] [2024-12-02 10:14:41,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:41,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:41,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:41,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:41,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:41,839 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:41,879 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-12-02 10:14:41,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:41,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-12-02 10:14:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:41,882 INFO L225 Difference]: With dead ends: 168 [2024-12-02 10:14:41,882 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 10:14:41,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:41,884 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:41,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:14:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 10:14:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-12-02 10:14:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 10:14:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-12-02 10:14:41,895 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 109 [2024-12-02 10:14:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:41,895 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-12-02 10:14:41,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-12-02 10:14:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:14:41,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:41,897 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:41,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:14:41,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:41,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 810533547, now seen corresponding path program 1 times [2024-12-02 10:14:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:41,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316628011] [2024-12-02 10:14:41,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:41,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316628011] [2024-12-02 10:14:43,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316628011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:43,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:43,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:14:43,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303315145] [2024-12-02 10:14:43,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:43,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:43,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:43,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:43,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:43,375 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:43,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:43,670 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2024-12-02 10:14:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:43,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-12-02 10:14:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:43,673 INFO L225 Difference]: With dead ends: 252 [2024-12-02 10:14:43,674 INFO L226 Difference]: Without dead ends: 169 [2024-12-02 10:14:43,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:14:43,675 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 75 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:43,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 273 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:14:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-12-02 10:14:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 161. [2024-12-02 10:14:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 130 states have (on average 1.3307692307692307) internal successors, (173), 130 states have internal predecessors, (173), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 10:14:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 229 transitions. [2024-12-02 10:14:43,696 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 229 transitions. Word has length 109 [2024-12-02 10:14:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:43,697 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 229 transitions. [2024-12-02 10:14:43,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 229 transitions. [2024-12-02 10:14:43,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:14:43,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:43,699 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:43,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:14:43,700 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:43,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:43,700 INFO L85 PathProgramCache]: Analyzing trace with hash -119975266, now seen corresponding path program 1 times [2024-12-02 10:14:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:43,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208891887] [2024-12-02 10:14:43,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:46,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:46,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208891887] [2024-12-02 10:14:46,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208891887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:46,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:46,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:14:46,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660253232] [2024-12-02 10:14:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:46,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:14:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:46,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:14:46,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:14:46,464 INFO L87 Difference]: Start difference. First operand 161 states and 229 transitions. Second operand has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:14:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:47,076 INFO L93 Difference]: Finished difference Result 403 states and 575 transitions. [2024-12-02 10:14:47,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:14:47,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-12-02 10:14:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:47,080 INFO L225 Difference]: With dead ends: 403 [2024-12-02 10:14:47,080 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 10:14:47,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:14:47,082 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 50 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:47,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 570 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:14:47,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 10:14:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 177. [2024-12-02 10:14:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 146 states have internal predecessors, (196), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 10:14:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2024-12-02 10:14:47,103 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 110 [2024-12-02 10:14:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:47,104 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2024-12-02 10:14:47,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.142857142857143) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:14:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2024-12-02 10:14:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:14:47,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:47,106 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:47,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:14:47,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:47,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash -706781280, now seen corresponding path program 1 times [2024-12-02 10:14:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:47,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124822805] [2024-12-02 10:14:47,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:47,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:49,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:49,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124822805] [2024-12-02 10:14:49,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124822805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:14:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798563418] [2024-12-02 10:14:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:49,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:14:49,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:49,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:14:49,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:14:49,770 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:14:51,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:51,175 INFO L93 Difference]: Finished difference Result 422 states and 592 transitions. [2024-12-02 10:14:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:14:51,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2024-12-02 10:14:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:51,178 INFO L225 Difference]: With dead ends: 422 [2024-12-02 10:14:51,178 INFO L226 Difference]: Without dead ends: 331 [2024-12-02 10:14:51,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:14:51,180 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 245 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:51,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 595 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:14:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-12-02 10:14:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 261. [2024-12-02 10:14:51,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 224 states have (on average 1.3482142857142858) internal successors, (302), 226 states have internal predecessors, (302), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 10:14:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 366 transitions. [2024-12-02 10:14:51,212 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 366 transitions. Word has length 110 [2024-12-02 10:14:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:51,213 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 366 transitions. [2024-12-02 10:14:51,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:14:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 366 transitions. [2024-12-02 10:14:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:14:51,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:51,215 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:51,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:14:51,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:51,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1708323168, now seen corresponding path program 1 times [2024-12-02 10:14:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651728408] [2024-12-02 10:14:51,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:51,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651728408] [2024-12-02 10:14:51,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651728408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:51,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:51,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:14:51,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750301079] [2024-12-02 10:14:51,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:51,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:14:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:51,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:14:51,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:14:51,925 INFO L87 Difference]: Start difference. First operand 261 states and 366 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:52,540 INFO L93 Difference]: Finished difference Result 571 states and 784 transitions. [2024-12-02 10:14:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:14:52,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2024-12-02 10:14:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:52,545 INFO L225 Difference]: With dead ends: 571 [2024-12-02 10:14:52,545 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 10:14:52,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:14:52,547 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 189 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:52,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 255 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:14:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 10:14:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 292. [2024-12-02 10:14:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 248 states have internal predecessors, (323), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:14:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 399 transitions. [2024-12-02 10:14:52,593 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 399 transitions. Word has length 110 [2024-12-02 10:14:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:52,593 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 399 transitions. [2024-12-02 10:14:52,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 399 transitions. [2024-12-02 10:14:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:14:52,595 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:52,595 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:52,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:14:52,596 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:52,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash 2079434709, now seen corresponding path program 1 times [2024-12-02 10:14:52,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:52,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701977824] [2024-12-02 10:14:52,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:52,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:53,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:53,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701977824] [2024-12-02 10:14:53,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701977824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:53,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:53,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:14:53,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130286773] [2024-12-02 10:14:53,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:53,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:53,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:53,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:53,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:53,326 INFO L87 Difference]: Start difference. First operand 292 states and 399 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:53,582 INFO L93 Difference]: Finished difference Result 566 states and 778 transitions. [2024-12-02 10:14:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:53,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-12-02 10:14:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:53,586 INFO L225 Difference]: With dead ends: 566 [2024-12-02 10:14:53,586 INFO L226 Difference]: Without dead ends: 298 [2024-12-02 10:14:53,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:14:53,587 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 71 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:53,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 222 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:14:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-02 10:14:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 290. [2024-12-02 10:14:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 243 states have (on average 1.308641975308642) internal successors, (318), 246 states have internal predecessors, (318), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:14:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 394 transitions. [2024-12-02 10:14:53,621 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 394 transitions. Word has length 111 [2024-12-02 10:14:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:53,622 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 394 transitions. [2024-12-02 10:14:53,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 394 transitions. [2024-12-02 10:14:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:14:53,623 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:53,623 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:53,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:14:53,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:53,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash 977296981, now seen corresponding path program 1 times [2024-12-02 10:14:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:53,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452156019] [2024-12-02 10:14:53,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:54,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:54,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452156019] [2024-12-02 10:14:54,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452156019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:54,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:54,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:14:54,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168960591] [2024-12-02 10:14:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:54,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:54,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:54,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:54,097 INFO L87 Difference]: Start difference. First operand 290 states and 394 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:54,324 INFO L93 Difference]: Finished difference Result 522 states and 711 transitions. [2024-12-02 10:14:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-12-02 10:14:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:54,327 INFO L225 Difference]: With dead ends: 522 [2024-12-02 10:14:54,327 INFO L226 Difference]: Without dead ends: 256 [2024-12-02 10:14:54,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:14:54,329 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 74 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:54,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 273 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:14:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-12-02 10:14:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2024-12-02 10:14:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 190 states have (on average 1.305263157894737) internal successors, (248), 191 states have internal predecessors, (248), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 308 transitions. [2024-12-02 10:14:54,352 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 308 transitions. Word has length 111 [2024-12-02 10:14:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:54,352 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 308 transitions. [2024-12-02 10:14:54,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 308 transitions. [2024-12-02 10:14:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:14:54,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:54,354 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:54,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:14:54,354 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:54,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:54,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1213662984, now seen corresponding path program 1 times [2024-12-02 10:14:54,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:54,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225854078] [2024-12-02 10:14:54,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:55,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225854078] [2024-12-02 10:14:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225854078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:55,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:55,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:14:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208429528] [2024-12-02 10:14:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:55,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:14:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:55,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:14:55,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:14:55,154 INFO L87 Difference]: Start difference. First operand 227 states and 308 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:55,686 INFO L93 Difference]: Finished difference Result 531 states and 719 transitions. [2024-12-02 10:14:55,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:14:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2024-12-02 10:14:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:55,690 INFO L225 Difference]: With dead ends: 531 [2024-12-02 10:14:55,690 INFO L226 Difference]: Without dead ends: 390 [2024-12-02 10:14:55,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:14:55,691 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 206 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:55,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 205 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:14:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-12-02 10:14:55,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 233. [2024-12-02 10:14:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 196 states have (on average 1.3112244897959184) internal successors, (257), 197 states have internal predecessors, (257), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 317 transitions. [2024-12-02 10:14:55,722 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 317 transitions. Word has length 112 [2024-12-02 10:14:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:55,722 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 317 transitions. [2024-12-02 10:14:55,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 317 transitions. [2024-12-02 10:14:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:14:55,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:55,724 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:55,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:14:55,724 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:55,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash 277271248, now seen corresponding path program 1 times [2024-12-02 10:14:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415872804] [2024-12-02 10:14:55,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:55,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:55,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415872804] [2024-12-02 10:14:55,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415872804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:55,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:55,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:14:55,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607735480] [2024-12-02 10:14:55,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:55,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:14:55,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:55,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:14:55,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:14:55,776 INFO L87 Difference]: Start difference. First operand 233 states and 317 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:55,800 INFO L93 Difference]: Finished difference Result 466 states and 637 transitions. [2024-12-02 10:14:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:14:55,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-12-02 10:14:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:55,803 INFO L225 Difference]: With dead ends: 466 [2024-12-02 10:14:55,803 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 10:14:55,803 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 [2024-12-02 10:14:55,804 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:55,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:14:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 10:14:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-12-02 10:14:55,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 199 states have (on average 1.306532663316583) internal successors, (260), 200 states have internal predecessors, (260), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-12-02 10:14:55,823 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 113 [2024-12-02 10:14:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:55,823 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-12-02 10:14:55,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-12-02 10:14:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:14:55,828 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:55,828 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:55,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:14:55,828 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:55,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash -309534766, now seen corresponding path program 1 times [2024-12-02 10:14:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840096677] [2024-12-02 10:14:55,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 10:14:55,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840096677] [2024-12-02 10:14:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840096677] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:14:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418454180] [2024-12-02 10:14:55,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:55,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:14:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:14:55,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:14:55,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:14:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:56,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:14:56,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:14:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:56,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:14:56,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418454180] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:56,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:14:56,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 10:14:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314863984] [2024-12-02 10:14:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:56,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:14:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:56,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:14:56,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:14:56,171 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:56,212 INFO L93 Difference]: Finished difference Result 478 states and 649 transitions. [2024-12-02 10:14:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:14:56,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-12-02 10:14:56,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:56,215 INFO L225 Difference]: With dead ends: 478 [2024-12-02 10:14:56,215 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 10:14:56,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:14:56,216 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:56,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:14:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 10:14:56,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-12-02 10:14:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 208 states have (on average 1.2932692307692308) internal successors, (269), 209 states have internal predecessors, (269), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 329 transitions. [2024-12-02 10:14:56,235 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 329 transitions. Word has length 113 [2024-12-02 10:14:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:56,235 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 329 transitions. [2024-12-02 10:14:56,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:14:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 329 transitions. [2024-12-02 10:14:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:14:56,237 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:56,237 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:56,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:14:56,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:14:56,438 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:56,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash -919537985, now seen corresponding path program 1 times [2024-12-02 10:14:56,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698064085] [2024-12-02 10:14:56,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:56,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:57,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:57,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698064085] [2024-12-02 10:14:57,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698064085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:57,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:57,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:14:57,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21587852] [2024-12-02 10:14:57,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:57,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:14:57,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:57,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:14:57,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:14:57,118 INFO L87 Difference]: Start difference. First operand 245 states and 329 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:57,898 INFO L93 Difference]: Finished difference Result 474 states and 639 transitions. [2024-12-02 10:14:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:14:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-12-02 10:14:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:57,901 INFO L225 Difference]: With dead ends: 474 [2024-12-02 10:14:57,901 INFO L226 Difference]: Without dead ends: 319 [2024-12-02 10:14:57,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:14:57,902 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 169 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:57,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 337 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:14:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-12-02 10:14:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 245. [2024-12-02 10:14:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 208 states have (on average 1.2884615384615385) internal successors, (268), 209 states have internal predecessors, (268), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2024-12-02 10:14:57,926 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 113 [2024-12-02 10:14:57,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:57,927 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2024-12-02 10:14:57,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:14:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2024-12-02 10:14:57,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:14:57,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:57,928 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:57,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:14:57,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:57,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:57,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1506343999, now seen corresponding path program 1 times [2024-12-02 10:14:57,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:57,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927624601] [2024-12-02 10:14:57,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:57,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927624601] [2024-12-02 10:14:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927624601] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:58,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:14:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436608724] [2024-12-02 10:14:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:58,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:14:58,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:58,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:14:58,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:14:58,834 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:14:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:14:59,183 INFO L93 Difference]: Finished difference Result 437 states and 588 transitions. [2024-12-02 10:14:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:14:59,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-12-02 10:14:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:14:59,185 INFO L225 Difference]: With dead ends: 437 [2024-12-02 10:14:59,185 INFO L226 Difference]: Without dead ends: 282 [2024-12-02 10:14:59,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:14:59,186 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 46 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:14:59,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:14:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-12-02 10:14:59,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 243. [2024-12-02 10:14:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 206 states have (on average 1.2864077669902914) internal successors, (265), 207 states have internal predecessors, (265), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:14:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 325 transitions. [2024-12-02 10:14:59,201 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 325 transitions. Word has length 113 [2024-12-02 10:14:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:14:59,201 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 325 transitions. [2024-12-02 10:14:59,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:14:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 325 transitions. [2024-12-02 10:14:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:14:59,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:14:59,202 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:59,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:14:59,202 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:14:59,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:59,203 INFO L85 PathProgramCache]: Analyzing trace with hash 452267285, now seen corresponding path program 1 times [2024-12-02 10:14:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:59,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102540393] [2024-12-02 10:14:59,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:59,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:14:59,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:59,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102540393] [2024-12-02 10:14:59,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102540393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:59,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:59,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:14:59,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335932714] [2024-12-02 10:14:59,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:59,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:14:59,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:59,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:14:59,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:14:59,943 INFO L87 Difference]: Start difference. First operand 243 states and 325 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:00,289 INFO L93 Difference]: Finished difference Result 527 states and 701 transitions. [2024-12-02 10:15:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:15:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-12-02 10:15:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:00,291 INFO L225 Difference]: With dead ends: 527 [2024-12-02 10:15:00,292 INFO L226 Difference]: Without dead ends: 374 [2024-12-02 10:15:00,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:15:00,293 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 65 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:00,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 515 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:15:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-12-02 10:15:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 259. [2024-12-02 10:15:00,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 222 states have (on average 1.2927927927927927) internal successors, (287), 223 states have internal predecessors, (287), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 10:15:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 347 transitions. [2024-12-02 10:15:00,316 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 347 transitions. Word has length 115 [2024-12-02 10:15:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:00,316 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 347 transitions. [2024-12-02 10:15:00,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 347 transitions. [2024-12-02 10:15:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:15:00,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:00,318 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:00,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:15:00,318 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:00,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash -231366615, now seen corresponding path program 1 times [2024-12-02 10:15:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359978995] [2024-12-02 10:15:00,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:01,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359978995] [2024-12-02 10:15:01,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359978995] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:01,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:01,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:15:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578985756] [2024-12-02 10:15:01,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:01,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:15:01,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:01,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:15:01,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:15:01,369 INFO L87 Difference]: Start difference. First operand 259 states and 347 transitions. Second operand has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:02,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:02,180 INFO L93 Difference]: Finished difference Result 570 states and 767 transitions. [2024-12-02 10:15:02,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:15:02,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-12-02 10:15:02,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:02,183 INFO L225 Difference]: With dead ends: 570 [2024-12-02 10:15:02,183 INFO L226 Difference]: Without dead ends: 401 [2024-12-02 10:15:02,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:15:02,184 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 253 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:02,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 544 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:15:02,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-12-02 10:15:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 322. [2024-12-02 10:15:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 279 states have (on average 1.3046594982078854) internal successors, (364), 281 states have internal predecessors, (364), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:15:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 432 transitions. [2024-12-02 10:15:02,214 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 432 transitions. Word has length 115 [2024-12-02 10:15:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:02,214 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 432 transitions. [2024-12-02 10:15:02,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 432 transitions. [2024-12-02 10:15:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:15:02,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:02,215 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:02,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:15:02,215 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:02,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -972987545, now seen corresponding path program 1 times [2024-12-02 10:15:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:02,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971550520] [2024-12-02 10:15:02,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:02,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:02,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971550520] [2024-12-02 10:15:02,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971550520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:02,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:02,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:02,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081307615] [2024-12-02 10:15:02,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:02,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:02,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:02,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:02,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:02,967 INFO L87 Difference]: Start difference. First operand 322 states and 432 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:03,469 INFO L93 Difference]: Finished difference Result 569 states and 765 transitions. [2024-12-02 10:15:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:15:03,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-12-02 10:15:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:03,471 INFO L225 Difference]: With dead ends: 569 [2024-12-02 10:15:03,471 INFO L226 Difference]: Without dead ends: 397 [2024-12-02 10:15:03,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:15:03,472 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 177 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:03,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 212 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-02 10:15:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 318. [2024-12-02 10:15:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 275 states have (on average 1.2945454545454544) internal successors, (356), 277 states have internal predecessors, (356), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 10:15:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 424 transitions. [2024-12-02 10:15:03,499 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 424 transitions. Word has length 115 [2024-12-02 10:15:03,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:03,499 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 424 transitions. [2024-12-02 10:15:03,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 424 transitions. [2024-12-02 10:15:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:15:03,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:03,500 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:03,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:15:03,501 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:03,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:03,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1484743168, now seen corresponding path program 1 times [2024-12-02 10:15:03,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:03,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248995412] [2024-12-02 10:15:03,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:03,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:04,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248995412] [2024-12-02 10:15:04,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248995412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:04,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:04,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:15:04,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463210337] [2024-12-02 10:15:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:04,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:04,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:04,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:04,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:04,059 INFO L87 Difference]: Start difference. First operand 318 states and 424 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:04,354 INFO L93 Difference]: Finished difference Result 731 states and 976 transitions. [2024-12-02 10:15:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:04,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 10:15:04,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:04,357 INFO L225 Difference]: With dead ends: 731 [2024-12-02 10:15:04,357 INFO L226 Difference]: Without dead ends: 433 [2024-12-02 10:15:04,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:04,359 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 62 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:04,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 354 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-12-02 10:15:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 413. [2024-12-02 10:15:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 367 states have (on average 1.3024523160762942) internal successors, (478), 370 states have internal predecessors, (478), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 10:15:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 550 transitions. [2024-12-02 10:15:04,399 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 550 transitions. Word has length 116 [2024-12-02 10:15:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:04,400 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 550 transitions. [2024-12-02 10:15:04,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 550 transitions. [2024-12-02 10:15:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:15:04,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:04,402 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:04,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:15:04,402 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:04,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1062041342, now seen corresponding path program 1 times [2024-12-02 10:15:04,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:04,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140608704] [2024-12-02 10:15:04,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:04,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:04,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:04,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140608704] [2024-12-02 10:15:04,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140608704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:04,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:04,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:15:04,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025814165] [2024-12-02 10:15:04,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:04,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:04,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:04,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:04,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:04,877 INFO L87 Difference]: Start difference. First operand 413 states and 550 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:05,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:05,154 INFO L93 Difference]: Finished difference Result 823 states and 1096 transitions. [2024-12-02 10:15:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:05,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 10:15:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:05,157 INFO L225 Difference]: With dead ends: 823 [2024-12-02 10:15:05,157 INFO L226 Difference]: Without dead ends: 413 [2024-12-02 10:15:05,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:05,158 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 40 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:05,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 375 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-12-02 10:15:05,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 410. [2024-12-02 10:15:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 364 states have (on average 1.2967032967032968) internal successors, (472), 367 states have internal predecessors, (472), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 10:15:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 544 transitions. [2024-12-02 10:15:05,183 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 544 transitions. Word has length 116 [2024-12-02 10:15:05,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:05,183 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 544 transitions. [2024-12-02 10:15:05,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 544 transitions. [2024-12-02 10:15:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:15:05,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:05,184 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:05,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:15:05,185 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:05,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1745675242, now seen corresponding path program 1 times [2024-12-02 10:15:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297517143] [2024-12-02 10:15:05,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:05,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:05,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297517143] [2024-12-02 10:15:05,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297517143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:05,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:05,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:05,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264671538] [2024-12-02 10:15:05,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:05,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:15:05,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:05,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:15:05,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:15:05,665 INFO L87 Difference]: Start difference. First operand 410 states and 544 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:05,875 INFO L93 Difference]: Finished difference Result 819 states and 1086 transitions. [2024-12-02 10:15:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:15:05,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-12-02 10:15:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:05,878 INFO L225 Difference]: With dead ends: 819 [2024-12-02 10:15:05,878 INFO L226 Difference]: Without dead ends: 412 [2024-12-02 10:15:05,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:05,879 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 59 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:05,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 224 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-12-02 10:15:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-12-02 10:15:05,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 364 states have (on average 1.293956043956044) internal successors, (471), 367 states have internal predecessors, (471), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 10:15:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 543 transitions. [2024-12-02 10:15:05,916 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 543 transitions. Word has length 116 [2024-12-02 10:15:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:05,916 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 543 transitions. [2024-12-02 10:15:05,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 543 transitions. [2024-12-02 10:15:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:15:05,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:05,918 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:05,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:15:05,918 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:05,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:05,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1953062276, now seen corresponding path program 1 times [2024-12-02 10:15:05,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:05,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512506625] [2024-12-02 10:15:05,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:05,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:06,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512506625] [2024-12-02 10:15:06,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512506625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:06,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:06,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:15:06,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286098989] [2024-12-02 10:15:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:06,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:06,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:06,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:06,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:06,453 INFO L87 Difference]: Start difference. First operand 410 states and 543 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:06,674 INFO L93 Difference]: Finished difference Result 784 states and 1034 transitions. [2024-12-02 10:15:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:06,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 10:15:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:06,677 INFO L225 Difference]: With dead ends: 784 [2024-12-02 10:15:06,677 INFO L226 Difference]: Without dead ends: 377 [2024-12-02 10:15:06,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:06,678 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 76 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:06,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 318 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-12-02 10:15:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 374. [2024-12-02 10:15:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 328 states have (on average 1.271341463414634) internal successors, (417), 331 states have internal predecessors, (417), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 10:15:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 489 transitions. [2024-12-02 10:15:06,715 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 489 transitions. Word has length 116 [2024-12-02 10:15:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:06,715 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 489 transitions. [2024-12-02 10:15:06,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:06,716 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 489 transitions. [2024-12-02 10:15:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:15:06,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:06,717 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:06,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:15:06,717 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:06,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1715964076, now seen corresponding path program 1 times [2024-12-02 10:15:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764499946] [2024-12-02 10:15:06,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:08,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:08,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764499946] [2024-12-02 10:15:08,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764499946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:08,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:08,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:15:08,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424607945] [2024-12-02 10:15:08,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:08,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:15:08,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:08,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:15:08,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:15:08,085 INFO L87 Difference]: Start difference. First operand 374 states and 489 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:09,216 INFO L93 Difference]: Finished difference Result 513 states and 661 transitions. [2024-12-02 10:15:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:15:09,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-12-02 10:15:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:09,219 INFO L225 Difference]: With dead ends: 513 [2024-12-02 10:15:09,219 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 10:15:09,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:15:09,220 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 222 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:09,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 702 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:15:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 10:15:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 389. [2024-12-02 10:15:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 343 states have (on average 1.2594752186588922) internal successors, (432), 346 states have internal predecessors, (432), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 10:15:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 504 transitions. [2024-12-02 10:15:09,264 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 504 transitions. Word has length 117 [2024-12-02 10:15:09,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:09,264 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 504 transitions. [2024-12-02 10:15:09,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 504 transitions. [2024-12-02 10:15:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:15:09,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:09,265 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:09,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:15:09,266 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:09,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1717811118, now seen corresponding path program 1 times [2024-12-02 10:15:09,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:09,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391501802] [2024-12-02 10:15:09,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:09,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:10,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:10,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391501802] [2024-12-02 10:15:10,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391501802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:10,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:10,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:10,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978943314] [2024-12-02 10:15:10,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:10,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:10,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:10,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:10,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:10,117 INFO L87 Difference]: Start difference. First operand 389 states and 504 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:10,593 INFO L93 Difference]: Finished difference Result 821 states and 1058 transitions. [2024-12-02 10:15:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:15:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-12-02 10:15:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:10,597 INFO L225 Difference]: With dead ends: 821 [2024-12-02 10:15:10,597 INFO L226 Difference]: Without dead ends: 435 [2024-12-02 10:15:10,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:10,600 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 84 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:10,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 419 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-12-02 10:15:10,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 434. [2024-12-02 10:15:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 371 states have (on average 1.2264150943396226) internal successors, (455), 375 states have internal predecessors, (455), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:15:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 551 transitions. [2024-12-02 10:15:10,667 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 551 transitions. Word has length 117 [2024-12-02 10:15:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:10,667 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 551 transitions. [2024-12-02 10:15:10,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 551 transitions. [2024-12-02 10:15:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:15:10,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:10,668 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:10,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:15:10,669 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:10,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:10,669 INFO L85 PathProgramCache]: Analyzing trace with hash -802148816, now seen corresponding path program 1 times [2024-12-02 10:15:10,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:10,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664500639] [2024-12-02 10:15:10,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:10,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:11,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:11,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664500639] [2024-12-02 10:15:11,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664500639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:11,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:11,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:11,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401837861] [2024-12-02 10:15:11,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:11,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:11,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:11,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:11,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:11,331 INFO L87 Difference]: Start difference. First operand 434 states and 551 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:11,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:11,594 INFO L93 Difference]: Finished difference Result 783 states and 994 transitions. [2024-12-02 10:15:11,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:15:11,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-12-02 10:15:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:11,597 INFO L225 Difference]: With dead ends: 783 [2024-12-02 10:15:11,597 INFO L226 Difference]: Without dead ends: 518 [2024-12-02 10:15:11,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:15:11,598 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 37 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:11,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 513 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:11,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-12-02 10:15:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 476. [2024-12-02 10:15:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 413 states have (on average 1.2276029055690072) internal successors, (507), 417 states have internal predecessors, (507), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 10:15:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 603 transitions. [2024-12-02 10:15:11,684 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 603 transitions. Word has length 117 [2024-12-02 10:15:11,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:11,685 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 603 transitions. [2024-12-02 10:15:11,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 603 transitions. [2024-12-02 10:15:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 10:15:11,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:11,687 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:11,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:15:11,687 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:11,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:11,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1112340812, now seen corresponding path program 1 times [2024-12-02 10:15:11,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:11,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78967176] [2024-12-02 10:15:11,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:11,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:12,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:12,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78967176] [2024-12-02 10:15:12,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78967176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:12,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:12,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:12,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62445781] [2024-12-02 10:15:12,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:12,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:12,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:12,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:12,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:12,279 INFO L87 Difference]: Start difference. First operand 476 states and 603 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:12,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:12,814 INFO L93 Difference]: Finished difference Result 961 states and 1217 transitions. [2024-12-02 10:15:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:15:12,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-12-02 10:15:12,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:12,822 INFO L225 Difference]: With dead ends: 961 [2024-12-02 10:15:12,822 INFO L226 Difference]: Without dead ends: 659 [2024-12-02 10:15:12,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:15:12,823 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 217 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:12,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 404 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-12-02 10:15:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 494. [2024-12-02 10:15:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.219626168224299) internal successors, (522), 432 states have internal predecessors, (522), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 622 transitions. [2024-12-02 10:15:12,862 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 622 transitions. Word has length 118 [2024-12-02 10:15:12,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:12,862 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 622 transitions. [2024-12-02 10:15:12,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 622 transitions. [2024-12-02 10:15:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 10:15:12,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:12,863 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:12,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:15:12,864 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:12,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash -881803894, now seen corresponding path program 1 times [2024-12-02 10:15:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:12,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996669901] [2024-12-02 10:15:12,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:13,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:13,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996669901] [2024-12-02 10:15:13,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996669901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:13,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:13,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:13,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637373980] [2024-12-02 10:15:13,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:13,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:13,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:13,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:13,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:13,427 INFO L87 Difference]: Start difference. First operand 494 states and 622 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:14,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:14,035 INFO L93 Difference]: Finished difference Result 932 states and 1177 transitions. [2024-12-02 10:15:14,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:15:14,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-12-02 10:15:14,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:14,037 INFO L225 Difference]: With dead ends: 932 [2024-12-02 10:15:14,037 INFO L226 Difference]: Without dead ends: 630 [2024-12-02 10:15:14,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:14,038 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 200 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:14,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 475 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:15:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-12-02 10:15:14,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 494. [2024-12-02 10:15:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.2149532710280373) internal successors, (520), 432 states have internal predecessors, (520), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 620 transitions. [2024-12-02 10:15:14,087 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 620 transitions. Word has length 118 [2024-12-02 10:15:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:14,087 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 620 transitions. [2024-12-02 10:15:14,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 620 transitions. [2024-12-02 10:15:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 10:15:14,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:14,089 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:14,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:15:14,089 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:14,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash -284663722, now seen corresponding path program 1 times [2024-12-02 10:15:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:14,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652595939] [2024-12-02 10:15:14,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:14,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:14,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652595939] [2024-12-02 10:15:14,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652595939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:14,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:14,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:14,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961543279] [2024-12-02 10:15:14,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:14,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:14,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:14,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:14,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:14,575 INFO L87 Difference]: Start difference. First operand 494 states and 620 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:15,177 INFO L93 Difference]: Finished difference Result 930 states and 1173 transitions. [2024-12-02 10:15:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-12-02 10:15:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:15,181 INFO L225 Difference]: With dead ends: 930 [2024-12-02 10:15:15,181 INFO L226 Difference]: Without dead ends: 622 [2024-12-02 10:15:15,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:15:15,182 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 171 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:15,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 457 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:15:15,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-12-02 10:15:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 488. [2024-12-02 10:15:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 422 states have (on average 1.2109004739336493) internal successors, (511), 426 states have internal predecessors, (511), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 611 transitions. [2024-12-02 10:15:15,231 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 611 transitions. Word has length 118 [2024-12-02 10:15:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:15,231 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 611 transitions. [2024-12-02 10:15:15,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 611 transitions. [2024-12-02 10:15:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 10:15:15,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:15,232 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:15,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:15:15,232 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:15,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:15,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1564527400, now seen corresponding path program 1 times [2024-12-02 10:15:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:15,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035270266] [2024-12-02 10:15:15,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:15,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:15,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:15,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035270266] [2024-12-02 10:15:15,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035270266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:15,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:15,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:15,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999969909] [2024-12-02 10:15:15,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:15,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:15,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:15,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:15,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:15,652 INFO L87 Difference]: Start difference. First operand 488 states and 611 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:16,111 INFO L93 Difference]: Finished difference Result 926 states and 1166 transitions. [2024-12-02 10:15:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:15:16,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 10:15:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:16,113 INFO L225 Difference]: With dead ends: 926 [2024-12-02 10:15:16,113 INFO L226 Difference]: Without dead ends: 624 [2024-12-02 10:15:16,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:15:16,114 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 263 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:16,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 416 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-12-02 10:15:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 494. [2024-12-02 10:15:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 428 states have (on average 1.2079439252336448) internal successors, (517), 432 states have internal predecessors, (517), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 617 transitions. [2024-12-02 10:15:16,173 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 617 transitions. Word has length 118 [2024-12-02 10:15:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:16,173 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 617 transitions. [2024-12-02 10:15:16,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 617 transitions. [2024-12-02 10:15:16,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:16,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:16,174 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:16,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:15:16,174 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:16,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:16,174 INFO L85 PathProgramCache]: Analyzing trace with hash 295231944, now seen corresponding path program 1 times [2024-12-02 10:15:16,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:16,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425731157] [2024-12-02 10:15:16,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:16,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:17,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:17,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425731157] [2024-12-02 10:15:17,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425731157] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:17,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:17,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:17,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217602631] [2024-12-02 10:15:17,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:17,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:17,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:17,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:17,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:17,090 INFO L87 Difference]: Start difference. First operand 494 states and 617 transitions. Second operand has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:15:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:17,478 INFO L93 Difference]: Finished difference Result 854 states and 1070 transitions. [2024-12-02 10:15:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:15:17,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-12-02 10:15:17,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:17,480 INFO L225 Difference]: With dead ends: 854 [2024-12-02 10:15:17,480 INFO L226 Difference]: Without dead ends: 552 [2024-12-02 10:15:17,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:17,481 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 45 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:17,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 521 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:15:17,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-12-02 10:15:17,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 462. [2024-12-02 10:15:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 396 states have (on average 1.196969696969697) internal successors, (474), 400 states have internal predecessors, (474), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 574 transitions. [2024-12-02 10:15:17,522 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 574 transitions. Word has length 119 [2024-12-02 10:15:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:17,522 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 574 transitions. [2024-12-02 10:15:17,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:15:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 574 transitions. [2024-12-02 10:15:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:17,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:17,523 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:17,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:15:17,524 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:17,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1968577794, now seen corresponding path program 1 times [2024-12-02 10:15:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:17,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059779516] [2024-12-02 10:15:17,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:17,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059779516] [2024-12-02 10:15:17,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059779516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:15:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666637217] [2024-12-02 10:15:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:17,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:17,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:17,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:17,564 INFO L87 Difference]: Start difference. First operand 462 states and 574 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:17,620 INFO L93 Difference]: Finished difference Result 881 states and 1100 transitions. [2024-12-02 10:15:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:15:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:17,622 INFO L225 Difference]: With dead ends: 881 [2024-12-02 10:15:17,622 INFO L226 Difference]: Without dead ends: 467 [2024-12-02 10:15:17,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:17,623 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:17,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:15:17,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-12-02 10:15:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-12-02 10:15:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.1945137157107233) internal successors, (479), 405 states have internal predecessors, (479), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:17,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 579 transitions. [2024-12-02 10:15:17,666 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 579 transitions. Word has length 119 [2024-12-02 10:15:17,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:17,666 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 579 transitions. [2024-12-02 10:15:17,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 579 transitions. [2024-12-02 10:15:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:17,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:17,667 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:17,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:15:17,667 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:17,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:17,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1267513216, now seen corresponding path program 1 times [2024-12-02 10:15:17,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:17,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290489265] [2024-12-02 10:15:17,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:17,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:17,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:17,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290489265] [2024-12-02 10:15:17,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290489265] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:17,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:17,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:15:17,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827097781] [2024-12-02 10:15:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:17,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:17,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:17,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:17,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:17,813 INFO L87 Difference]: Start difference. First operand 467 states and 579 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:17,969 INFO L93 Difference]: Finished difference Result 953 states and 1179 transitions. [2024-12-02 10:15:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:17,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:15:17,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:17,971 INFO L225 Difference]: With dead ends: 953 [2024-12-02 10:15:17,971 INFO L226 Difference]: Without dead ends: 534 [2024-12-02 10:15:17,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:17,973 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 62 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:17,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 271 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-12-02 10:15:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 464. [2024-12-02 10:15:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 398 states have (on average 1.1884422110552764) internal successors, (473), 402 states have internal predecessors, (473), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 573 transitions. [2024-12-02 10:15:18,034 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 573 transitions. Word has length 119 [2024-12-02 10:15:18,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:18,034 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 573 transitions. [2024-12-02 10:15:18,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:18,035 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 573 transitions. [2024-12-02 10:15:18,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:18,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:18,036 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:18,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:15:18,036 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:18,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2068224064, now seen corresponding path program 1 times [2024-12-02 10:15:18,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:18,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946728314] [2024-12-02 10:15:18,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:18,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:18,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946728314] [2024-12-02 10:15:18,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946728314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:18,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174834661] [2024-12-02 10:15:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:18,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:18,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:18,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:18,404 INFO L87 Difference]: Start difference. First operand 464 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:18,660 INFO L93 Difference]: Finished difference Result 1046 states and 1289 transitions. [2024-12-02 10:15:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:15:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:18,662 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 10:15:18,662 INFO L226 Difference]: Without dead ends: 630 [2024-12-02 10:15:18,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:18,663 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 137 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:18,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 289 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:18,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-12-02 10:15:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 569. [2024-12-02 10:15:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 503 states have (on average 1.202783300198807) internal successors, (605), 506 states have internal predecessors, (605), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 705 transitions. [2024-12-02 10:15:18,723 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 705 transitions. Word has length 119 [2024-12-02 10:15:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:18,724 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 705 transitions. [2024-12-02 10:15:18,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 705 transitions. [2024-12-02 10:15:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:18,725 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:18,725 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:18,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 10:15:18,725 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:18,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1525678654, now seen corresponding path program 1 times [2024-12-02 10:15:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:18,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005069637] [2024-12-02 10:15:18,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:18,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:19,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:19,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005069637] [2024-12-02 10:15:19,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005069637] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:19,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:19,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:15:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937719211] [2024-12-02 10:15:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:19,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:19,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:19,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:19,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:19,349 INFO L87 Difference]: Start difference. First operand 569 states and 705 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:19,798 INFO L93 Difference]: Finished difference Result 1096 states and 1348 transitions. [2024-12-02 10:15:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:15:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-12-02 10:15:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:19,802 INFO L225 Difference]: With dead ends: 1096 [2024-12-02 10:15:19,802 INFO L226 Difference]: Without dead ends: 680 [2024-12-02 10:15:19,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:15:19,803 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 127 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:19,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 681 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:15:19,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-12-02 10:15:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 597. [2024-12-02 10:15:19,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 531 states have (on average 1.1939736346516008) internal successors, (634), 534 states have internal predecessors, (634), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 734 transitions. [2024-12-02 10:15:19,858 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 734 transitions. Word has length 119 [2024-12-02 10:15:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:19,859 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 734 transitions. [2024-12-02 10:15:19,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:15:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 734 transitions. [2024-12-02 10:15:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:15:19,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:19,860 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:19,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 10:15:19,860 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:19,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash -279759680, now seen corresponding path program 1 times [2024-12-02 10:15:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366221107] [2024-12-02 10:15:19,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:19,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:20,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:20,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366221107] [2024-12-02 10:15:20,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366221107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:20,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:20,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:20,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293446608] [2024-12-02 10:15:20,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:20,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:20,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:20,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:20,307 INFO L87 Difference]: Start difference. First operand 597 states and 734 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:20,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:20,665 INFO L93 Difference]: Finished difference Result 1114 states and 1359 transitions. [2024-12-02 10:15:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:20,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 10:15:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:20,668 INFO L225 Difference]: With dead ends: 1114 [2024-12-02 10:15:20,668 INFO L226 Difference]: Without dead ends: 639 [2024-12-02 10:15:20,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:15:20,669 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 94 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:20,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 353 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:15:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-12-02 10:15:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 585. [2024-12-02 10:15:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 519 states have (on average 1.1907514450867052) internal successors, (618), 522 states have internal predecessors, (618), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 10:15:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 718 transitions. [2024-12-02 10:15:20,723 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 718 transitions. Word has length 119 [2024-12-02 10:15:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:20,723 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 718 transitions. [2024-12-02 10:15:20,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:15:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 718 transitions. [2024-12-02 10:15:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 10:15:20,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:20,724 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:20,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 10:15:20,724 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:20,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash 504691498, now seen corresponding path program 1 times [2024-12-02 10:15:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:20,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315831386] [2024-12-02 10:15:20,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:20,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:21,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315831386] [2024-12-02 10:15:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315831386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:15:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56575837] [2024-12-02 10:15:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:21,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:15:21,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:21,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:15:21,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:21,472 INFO L87 Difference]: Start difference. First operand 585 states and 718 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:21,779 INFO L93 Difference]: Finished difference Result 856 states and 1051 transitions. [2024-12-02 10:15:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:15:21,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-12-02 10:15:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:21,781 INFO L225 Difference]: With dead ends: 856 [2024-12-02 10:15:21,781 INFO L226 Difference]: Without dead ends: 578 [2024-12-02 10:15:21,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:21,782 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 37 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:21,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 452 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-12-02 10:15:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 507. [2024-12-02 10:15:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 445 states have (on average 1.1887640449438202) internal successors, (529), 446 states have internal predecessors, (529), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 10:15:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 621 transitions. [2024-12-02 10:15:21,823 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 621 transitions. Word has length 120 [2024-12-02 10:15:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:21,823 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 621 transitions. [2024-12-02 10:15:21,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:15:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 621 transitions. [2024-12-02 10:15:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:15:21,824 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:21,824 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:21,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 10:15:21,824 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:21,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:21,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1079383721, now seen corresponding path program 1 times [2024-12-02 10:15:21,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:21,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623227900] [2024-12-02 10:15:21,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:24,922 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:15:24,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:24,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623227900] [2024-12-02 10:15:24,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623227900] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:24,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:24,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 10:15:24,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445086101] [2024-12-02 10:15:24,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:24,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:15:24,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:24,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:15:24,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:15:24,924 INFO L87 Difference]: Start difference. First operand 507 states and 621 transitions. Second operand has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:16:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:10,482 INFO L93 Difference]: Finished difference Result 1128 states and 1384 transitions. [2024-12-02 10:16:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 10:16:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2024-12-02 10:16:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:10,485 INFO L225 Difference]: With dead ends: 1128 [2024-12-02 10:16:10,485 INFO L226 Difference]: Without dead ends: 898 [2024-12-02 10:16:10,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=235, Invalid=1925, Unknown=2, NotChecked=0, Total=2162 [2024-12-02 10:16:10,486 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 343 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 2304 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:10,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1598 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2304 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 10:16:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-12-02 10:16:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 630. [2024-12-02 10:16:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 551 states have (on average 1.1833030852994555) internal successors, (652), 554 states have internal predecessors, (652), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:16:10,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 768 transitions. [2024-12-02 10:16:10,556 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 768 transitions. Word has length 121 [2024-12-02 10:16:10,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:10,557 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 768 transitions. [2024-12-02 10:16:10,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.0) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:16:10,557 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 768 transitions. [2024-12-02 10:16:10,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:10,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:10,557 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:10,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 10:16:10,557 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:10,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:10,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1642634157, now seen corresponding path program 1 times [2024-12-02 10:16:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:10,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740549211] [2024-12-02 10:16:10,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:16:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:12,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740549211] [2024-12-02 10:16:12,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740549211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 10:16:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163591785] [2024-12-02 10:16:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:12,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 10:16:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:12,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 10:16:12,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:16:12,248 INFO L87 Difference]: Start difference. First operand 630 states and 768 transitions. Second operand has 20 states, 16 states have (on average 3.375) internal successors, (54), 20 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:16:16,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:16,558 INFO L93 Difference]: Finished difference Result 1308 states and 1597 transitions. [2024-12-02 10:16:16,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 10:16:16,559 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 3.375) internal successors, (54), 20 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2024-12-02 10:16:16,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:16,562 INFO L225 Difference]: With dead ends: 1308 [2024-12-02 10:16:16,562 INFO L226 Difference]: Without dead ends: 974 [2024-12-02 10:16:16,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=205, Invalid=1775, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 10:16:16,564 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 219 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:16,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1613 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2806 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 10:16:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-12-02 10:16:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 733. [2024-12-02 10:16:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 654 states have (on average 1.201834862385321) internal successors, (786), 657 states have internal predecessors, (786), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:16:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 902 transitions. [2024-12-02 10:16:16,658 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 902 transitions. Word has length 121 [2024-12-02 10:16:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:16,659 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 902 transitions. [2024-12-02 10:16:16,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 3.375) internal successors, (54), 20 states have internal predecessors, (54), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:16:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 902 transitions. [2024-12-02 10:16:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:16,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:16,660 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:16,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 10:16:16,660 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:16,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1829380181, now seen corresponding path program 1 times [2024-12-02 10:16:16,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:16,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681091664] [2024-12-02 10:16:16,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:16:17,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:17,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681091664] [2024-12-02 10:16:17,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681091664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:17,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:16:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342393489] [2024-12-02 10:16:17,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:17,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:16:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:17,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:16:17,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:16:17,533 INFO L87 Difference]: Start difference. First operand 733 states and 902 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:16:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:18,570 INFO L93 Difference]: Finished difference Result 1352 states and 1671 transitions. [2024-12-02 10:16:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:16:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-12-02 10:16:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:18,573 INFO L225 Difference]: With dead ends: 1352 [2024-12-02 10:16:18,573 INFO L226 Difference]: Without dead ends: 953 [2024-12-02 10:16:18,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:16:18,574 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 218 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:18,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 613 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:16:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-12-02 10:16:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 789. [2024-12-02 10:16:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 710 states have (on average 1.2056338028169014) internal successors, (856), 713 states have internal predecessors, (856), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:16:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 972 transitions. [2024-12-02 10:16:18,658 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 972 transitions. Word has length 121 [2024-12-02 10:16:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:18,658 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 972 transitions. [2024-12-02 10:16:18,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:16:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 972 transitions. [2024-12-02 10:16:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:18,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:18,659 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:18,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 10:16:18,659 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:18,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1185723437, now seen corresponding path program 1 times [2024-12-02 10:16:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:18,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267267347] [2024-12-02 10:16:18,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:16:19,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:19,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267267347] [2024-12-02 10:16:19,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267267347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:19,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:19,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:16:19,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248794269] [2024-12-02 10:16:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:19,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:16:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:19,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:16:19,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:16:19,895 INFO L87 Difference]: Start difference. First operand 789 states and 972 transitions. Second operand has 13 states, 10 states have (on average 5.4) internal successors, (54), 13 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:16:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:21,907 INFO L93 Difference]: Finished difference Result 1402 states and 1724 transitions. [2024-12-02 10:16:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:16:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.4) internal successors, (54), 13 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 121 [2024-12-02 10:16:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:21,909 INFO L225 Difference]: With dead ends: 1402 [2024-12-02 10:16:21,909 INFO L226 Difference]: Without dead ends: 1005 [2024-12-02 10:16:21,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:16:21,910 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 334 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:21,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 947 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:16:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-12-02 10:16:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 787. [2024-12-02 10:16:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 708 states have (on average 1.2033898305084745) internal successors, (852), 711 states have internal predecessors, (852), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:16:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 968 transitions. [2024-12-02 10:16:21,992 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 968 transitions. Word has length 121 [2024-12-02 10:16:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:21,992 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 968 transitions. [2024-12-02 10:16:21,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.4) internal successors, (54), 13 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:16:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 968 transitions. [2024-12-02 10:16:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:21,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:21,993 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:21,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 10:16:21,993 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:21,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:21,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1748973873, now seen corresponding path program 1 times [2024-12-02 10:16:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:21,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737828074] [2024-12-02 10:16:21,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:21,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:16:22,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:22,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737828074] [2024-12-02 10:16:22,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737828074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:22,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:22,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:16:22,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116429951] [2024-12-02 10:16:22,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:22,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:16:22,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:22,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:16:22,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:16:22,927 INFO L87 Difference]: Start difference. First operand 787 states and 968 transitions. Second operand has 14 states, 12 states have (on average 4.5) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:16:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:24,006 INFO L93 Difference]: Finished difference Result 1402 states and 1728 transitions. [2024-12-02 10:16:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:16:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.5) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-12-02 10:16:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:24,009 INFO L225 Difference]: With dead ends: 1402 [2024-12-02 10:16:24,009 INFO L226 Difference]: Without dead ends: 1013 [2024-12-02 10:16:24,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:16:24,010 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 72 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:24,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1253 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:16:24,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-12-02 10:16:24,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 836. [2024-12-02 10:16:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 757 states have (on average 1.202113606340819) internal successors, (910), 760 states have internal predecessors, (910), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:16:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1026 transitions. [2024-12-02 10:16:24,092 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1026 transitions. Word has length 121 [2024-12-02 10:16:24,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:24,092 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1026 transitions. [2024-12-02 10:16:24,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.5) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:16:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1026 transitions. [2024-12-02 10:16:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 10:16:24,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:24,093 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:24,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 10:16:24,093 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:24,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:24,093 INFO L85 PathProgramCache]: Analyzing trace with hash -716144494, now seen corresponding path program 1 times [2024-12-02 10:16:24,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:24,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172345619] [2024-12-02 10:16:24,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:24,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:40,461 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:16:52,757 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:02,571 WARN L286 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:10,775 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:16,120 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:23,474 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:31,762 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:38,677 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:48,028 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:17:56,339 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:05,218 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:18,625 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:26,732 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:35,191 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:43,276 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:49,913 WARN L286 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:18:57,105 WARN L286 SmtUtils]: Spent 6.60s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:08,856 WARN L286 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:15,787 WARN L286 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:25,376 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:32,430 WARN L286 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:41,790 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:48,352 WARN L286 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:19:54,945 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:20:03,879 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:20:31,602 WARN L286 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:20:39,196 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:20:53,044 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:04,449 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:11,355 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:19,229 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:27,901 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:35,370 WARN L286 SmtUtils]: Spent 7.02s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:44,745 WARN L286 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:21:54,021 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:22:02,504 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:22:15,299 WARN L286 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:22:29,558 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:22:49,440 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:22:55,201 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:23:03,723 WARN L286 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:23:12,160 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:23:20,573 WARN L286 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:23:51,379 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:23:59,439 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:07,521 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:19,768 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:29,608 WARN L286 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:39,076 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:44,448 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:24:49,908 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:11,119 WARN L286 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:16,393 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:23,899 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:40,081 WARN L286 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:46,098 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:25:56,216 WARN L286 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:26:07,015 WARN L286 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:26:15,033 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:26:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:24,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:24,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172345619] [2024-12-02 10:26:24,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172345619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:24,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:24,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:26:24,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944406366] [2024-12-02 10:26:24,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:24,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:26:24,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:24,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:26:24,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:26:24,239 INFO L87 Difference]: Start difference. First operand 836 states and 1026 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:24,993 INFO L93 Difference]: Finished difference Result 1647 states and 2012 transitions. [2024-12-02 10:26:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:26:24,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-12-02 10:26:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:24,996 INFO L225 Difference]: With dead ends: 1647 [2024-12-02 10:26:24,996 INFO L226 Difference]: Without dead ends: 1259 [2024-12-02 10:26:24,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:24,997 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 87 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:24,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 889 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:26:24,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-12-02 10:26:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 968. [2024-12-02 10:26:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 889 states have (on average 1.1979752530933634) internal successors, (1065), 892 states have internal predecessors, (1065), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1181 transitions. [2024-12-02 10:26:25,081 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1181 transitions. Word has length 122 [2024-12-02 10:26:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:25,082 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1181 transitions. [2024-12-02 10:26:25,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1181 transitions. [2024-12-02 10:26:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:25,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:25,082 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:25,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 10:26:25,083 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:25,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1853506883, now seen corresponding path program 1 times [2024-12-02 10:26:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364815817] [2024-12-02 10:26:25,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:26,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:26,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364815817] [2024-12-02 10:26:26,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364815817] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:26,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:26,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:26:26,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47491649] [2024-12-02 10:26:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:26,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:26,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:26,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:26,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:26,302 INFO L87 Difference]: Start difference. First operand 968 states and 1181 transitions. Second operand has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:27,419 INFO L93 Difference]: Finished difference Result 1641 states and 2025 transitions. [2024-12-02 10:26:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:26:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-12-02 10:26:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:27,423 INFO L225 Difference]: With dead ends: 1641 [2024-12-02 10:26:27,423 INFO L226 Difference]: Without dead ends: 1159 [2024-12-02 10:26:27,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:26:27,424 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 61 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:27,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 666 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:26:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-12-02 10:26:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1019. [2024-12-02 10:26:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 940 states have (on average 1.2095744680851064) internal successors, (1137), 943 states have internal predecessors, (1137), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1253 transitions. [2024-12-02 10:26:27,519 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1253 transitions. Word has length 123 [2024-12-02 10:26:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:27,519 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1253 transitions. [2024-12-02 10:26:27,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1253 transitions. [2024-12-02 10:26:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:27,520 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:27,520 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:27,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 10:26:27,520 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:27,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash 573643205, now seen corresponding path program 1 times [2024-12-02 10:26:27,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:27,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118758490] [2024-12-02 10:26:27,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:27,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:28,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:28,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118758490] [2024-12-02 10:26:28,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118758490] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:26:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557038213] [2024-12-02 10:26:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:28,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:28,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:28,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:28,439 INFO L87 Difference]: Start difference. First operand 1019 states and 1253 transitions. Second operand has 10 states, 8 states have (on average 7.0) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:26:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:29,519 INFO L93 Difference]: Finished difference Result 1867 states and 2313 transitions. [2024-12-02 10:26:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:26:29,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.0) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-12-02 10:26:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:29,526 INFO L225 Difference]: With dead ends: 1867 [2024-12-02 10:26:29,526 INFO L226 Difference]: Without dead ends: 1317 [2024-12-02 10:26:29,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:26:29,527 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 202 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:29,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 584 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:26:29,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-12-02 10:26:29,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1025. [2024-12-02 10:26:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 946 states have (on average 1.2061310782241015) internal successors, (1141), 949 states have internal predecessors, (1141), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1257 transitions. [2024-12-02 10:26:29,613 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1257 transitions. Word has length 123 [2024-12-02 10:26:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:29,613 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1257 transitions. [2024-12-02 10:26:29,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.0) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:26:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1257 transitions. [2024-12-02 10:26:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:29,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:29,614 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:29,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 10:26:29,614 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:29,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:29,614 INFO L85 PathProgramCache]: Analyzing trace with hash -907199357, now seen corresponding path program 1 times [2024-12-02 10:26:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:29,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57624494] [2024-12-02 10:26:29,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:29,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:31,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57624494] [2024-12-02 10:26:31,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57624494] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:31,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:31,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 10:26:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470212412] [2024-12-02 10:26:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:31,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 10:26:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:31,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 10:26:31,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:26:31,373 INFO L87 Difference]: Start difference. First operand 1025 states and 1257 transitions. Second operand has 17 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:26:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:34,381 INFO L93 Difference]: Finished difference Result 1992 states and 2446 transitions. [2024-12-02 10:26:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 10:26:34,382 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 123 [2024-12-02 10:26:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:34,384 INFO L225 Difference]: With dead ends: 1992 [2024-12-02 10:26:34,384 INFO L226 Difference]: Without dead ends: 1467 [2024-12-02 10:26:34,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:26:34,385 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 333 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:34,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1237 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 10:26:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-12-02 10:26:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1046. [2024-12-02 10:26:34,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 967 states have (on average 1.2078593588417788) internal successors, (1168), 970 states have internal predecessors, (1168), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1284 transitions. [2024-12-02 10:26:34,477 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1284 transitions. Word has length 123 [2024-12-02 10:26:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:34,477 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1284 transitions. [2024-12-02 10:26:34,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:26:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1284 transitions. [2024-12-02 10:26:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:34,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:34,478 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:34,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 10:26:34,478 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:34,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash -789409657, now seen corresponding path program 1 times [2024-12-02 10:26:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:34,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252217842] [2024-12-02 10:26:34,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:34,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:35,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:35,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252217842] [2024-12-02 10:26:35,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252217842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:35,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:35,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:26:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236931215] [2024-12-02 10:26:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:35,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:26:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:35,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:26:35,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:35,678 INFO L87 Difference]: Start difference. First operand 1046 states and 1284 transitions. Second operand has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:37,658 INFO L93 Difference]: Finished difference Result 1818 states and 2245 transitions. [2024-12-02 10:26:37,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:26:37,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-12-02 10:26:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:37,661 INFO L225 Difference]: With dead ends: 1818 [2024-12-02 10:26:37,661 INFO L226 Difference]: Without dead ends: 1269 [2024-12-02 10:26:37,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:26:37,662 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 219 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:37,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 880 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:26:37,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-12-02 10:26:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1082. [2024-12-02 10:26:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1003 states have (on average 1.2123629112662013) internal successors, (1216), 1006 states have internal predecessors, (1216), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1332 transitions. [2024-12-02 10:26:37,759 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1332 transitions. Word has length 123 [2024-12-02 10:26:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:37,759 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1332 transitions. [2024-12-02 10:26:37,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1332 transitions. [2024-12-02 10:26:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:37,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:37,759 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:37,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 10:26:37,760 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:37,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:37,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1838493515, now seen corresponding path program 1 times [2024-12-02 10:26:37,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:37,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596998318] [2024-12-02 10:26:37,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:38,099 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:38,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:38,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596998318] [2024-12-02 10:26:38,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596998318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:38,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:38,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:26:38,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981270224] [2024-12-02 10:26:38,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:38,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:38,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:38,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:38,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:38,100 INFO L87 Difference]: Start difference. First operand 1082 states and 1332 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:38,629 INFO L93 Difference]: Finished difference Result 2071 states and 2574 transitions. [2024-12-02 10:26:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:26:38,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-12-02 10:26:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:38,633 INFO L225 Difference]: With dead ends: 2071 [2024-12-02 10:26:38,633 INFO L226 Difference]: Without dead ends: 1436 [2024-12-02 10:26:38,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:26:38,635 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 74 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:38,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 418 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:26:38,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-12-02 10:26:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1082. [2024-12-02 10:26:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1003 states have (on average 1.2093718843469592) internal successors, (1213), 1006 states have internal predecessors, (1213), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1329 transitions. [2024-12-02 10:26:38,747 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1329 transitions. Word has length 123 [2024-12-02 10:26:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:38,747 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1329 transitions. [2024-12-02 10:26:38,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1329 transitions. [2024-12-02 10:26:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:38,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:38,748 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:38,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 10:26:38,748 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:38,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:38,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1070270387, now seen corresponding path program 1 times [2024-12-02 10:26:38,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:38,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373785900] [2024-12-02 10:26:38,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:38,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:39,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:39,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373785900] [2024-12-02 10:26:39,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373785900] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:39,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:39,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 10:26:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881291049] [2024-12-02 10:26:39,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:39,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:26:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:39,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:26:39,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:26:39,964 INFO L87 Difference]: Start difference. First operand 1082 states and 1329 transitions. Second operand has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:42,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:42,240 INFO L93 Difference]: Finished difference Result 1925 states and 2380 transitions. [2024-12-02 10:26:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:26:42,241 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-12-02 10:26:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:42,245 INFO L225 Difference]: With dead ends: 1925 [2024-12-02 10:26:42,245 INFO L226 Difference]: Without dead ends: 1354 [2024-12-02 10:26:42,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2024-12-02 10:26:42,247 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 275 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:42,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1139 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:26:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-12-02 10:26:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1074. [2024-12-02 10:26:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 995 states have (on average 1.2090452261306532) internal successors, (1203), 998 states have internal predecessors, (1203), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1319 transitions. [2024-12-02 10:26:42,360 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1319 transitions. Word has length 123 [2024-12-02 10:26:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:42,360 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1319 transitions. [2024-12-02 10:26:42,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1319 transitions. [2024-12-02 10:26:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:42,361 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:42,361 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:42,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 10:26:42,361 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:42,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1676157685, now seen corresponding path program 1 times [2024-12-02 10:26:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:42,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146495684] [2024-12-02 10:26:42,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:42,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:42,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:42,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146495684] [2024-12-02 10:26:42,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146495684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:42,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:42,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:26:42,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849974240] [2024-12-02 10:26:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:42,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:42,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:42,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:42,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:42,786 INFO L87 Difference]: Start difference. First operand 1074 states and 1319 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:43,181 INFO L93 Difference]: Finished difference Result 1847 states and 2294 transitions. [2024-12-02 10:26:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:26:43,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-12-02 10:26:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:43,185 INFO L225 Difference]: With dead ends: 1847 [2024-12-02 10:26:43,185 INFO L226 Difference]: Without dead ends: 1268 [2024-12-02 10:26:43,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:26:43,186 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 51 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:43,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 398 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:43,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-12-02 10:26:43,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1089. [2024-12-02 10:26:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1010 states have (on average 1.2128712871287128) internal successors, (1225), 1013 states have internal predecessors, (1225), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1341 transitions. [2024-12-02 10:26:43,294 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1341 transitions. Word has length 123 [2024-12-02 10:26:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:43,294 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1341 transitions. [2024-12-02 10:26:43,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1341 transitions. [2024-12-02 10:26:43,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:26:43,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:43,295 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:43,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 10:26:43,295 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:43,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1338945933, now seen corresponding path program 1 times [2024-12-02 10:26:43,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:43,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972351360] [2024-12-02 10:26:43,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:44,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:44,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972351360] [2024-12-02 10:26:44,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972351360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:44,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:44,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:26:44,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267015035] [2024-12-02 10:26:44,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:44,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:26:44,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:44,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:26:44,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:44,477 INFO L87 Difference]: Start difference. First operand 1089 states and 1341 transitions. Second operand has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:46,164 INFO L93 Difference]: Finished difference Result 1821 states and 2260 transitions. [2024-12-02 10:26:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:26:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-12-02 10:26:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:46,168 INFO L225 Difference]: With dead ends: 1821 [2024-12-02 10:26:46,168 INFO L226 Difference]: Without dead ends: 1237 [2024-12-02 10:26:46,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:26:46,169 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 206 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:46,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 840 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 10:26:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-12-02 10:26:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1091. [2024-12-02 10:26:46,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1011 states have (on average 1.2116716122650841) internal successors, (1225), 1014 states have internal predecessors, (1225), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1341 transitions. [2024-12-02 10:26:46,271 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1341 transitions. Word has length 123 [2024-12-02 10:26:46,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:46,272 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1341 transitions. [2024-12-02 10:26:46,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:46,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1341 transitions. [2024-12-02 10:26:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:26:46,272 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:46,272 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:46,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 10:26:46,272 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:46,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash -4182883, now seen corresponding path program 1 times [2024-12-02 10:26:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700039218] [2024-12-02 10:26:46,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:48,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:48,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700039218] [2024-12-02 10:26:48,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700039218] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:48,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:48,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-12-02 10:26:48,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108922005] [2024-12-02 10:26:48,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:48,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:26:48,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:48,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:26:48,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:26:48,602 INFO L87 Difference]: Start difference. First operand 1091 states and 1341 transitions. Second operand has 23 states, 20 states have (on average 2.9) internal successors, (58), 23 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:51,775 INFO L93 Difference]: Finished difference Result 2286 states and 2827 transitions. [2024-12-02 10:26:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 10:26:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.9) internal successors, (58), 23 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-12-02 10:26:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:51,779 INFO L225 Difference]: With dead ends: 2286 [2024-12-02 10:26:51,779 INFO L226 Difference]: Without dead ends: 1711 [2024-12-02 10:26:51,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=199, Invalid=1361, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 10:26:51,780 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 238 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:51,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1689 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:26:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2024-12-02 10:26:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1140. [2024-12-02 10:26:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1060 states have (on average 1.2150943396226415) internal successors, (1288), 1063 states have internal predecessors, (1288), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1404 transitions. [2024-12-02 10:26:51,888 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1404 transitions. Word has length 125 [2024-12-02 10:26:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:51,888 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1404 transitions. [2024-12-02 10:26:51,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.9) internal successors, (58), 23 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1404 transitions. [2024-12-02 10:26:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:26:51,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:51,889 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:51,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 10:26:51,889 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:51,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1284046561, now seen corresponding path program 1 times [2024-12-02 10:26:51,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:51,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436594311] [2024-12-02 10:26:51,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:52,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:52,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436594311] [2024-12-02 10:26:52,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436594311] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:52,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:52,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:26:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847192716] [2024-12-02 10:26:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:52,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:26:52,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:52,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:26:52,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:26:52,040 INFO L87 Difference]: Start difference. First operand 1140 states and 1404 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:52,423 INFO L93 Difference]: Finished difference Result 1934 states and 2398 transitions. [2024-12-02 10:26:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:52,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:26:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:52,426 INFO L225 Difference]: With dead ends: 1934 [2024-12-02 10:26:52,426 INFO L226 Difference]: Without dead ends: 1320 [2024-12-02 10:26:52,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:52,427 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 49 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:52,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 403 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:26:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-12-02 10:26:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1140. [2024-12-02 10:26:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1060 states have (on average 1.2066037735849056) internal successors, (1279), 1063 states have internal predecessors, (1279), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1395 transitions. [2024-12-02 10:26:52,534 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1395 transitions. Word has length 125 [2024-12-02 10:26:52,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:52,534 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1395 transitions. [2024-12-02 10:26:52,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1395 transitions. [2024-12-02 10:26:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:26:52,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:52,535 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:52,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 10:26:52,535 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:52,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash 697416991, now seen corresponding path program 1 times [2024-12-02 10:26:52,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:52,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969080153] [2024-12-02 10:26:52,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:52,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:52,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969080153] [2024-12-02 10:26:52,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969080153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:52,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:52,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:26:52,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478720320] [2024-12-02 10:26:52,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:52,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:26:52,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:52,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:26:52,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:26:52,691 INFO L87 Difference]: Start difference. First operand 1140 states and 1395 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:53,218 INFO L93 Difference]: Finished difference Result 2119 states and 2609 transitions. [2024-12-02 10:26:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:26:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 10:26:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:53,221 INFO L225 Difference]: With dead ends: 2119 [2024-12-02 10:26:53,221 INFO L226 Difference]: Without dead ends: 1447 [2024-12-02 10:26:53,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:53,222 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 72 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:53,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:26:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-12-02 10:26:53,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1094. [2024-12-02 10:26:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1014 states have (on average 1.2001972386587771) internal successors, (1217), 1017 states have internal predecessors, (1217), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1333 transitions. [2024-12-02 10:26:53,343 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1333 transitions. Word has length 125 [2024-12-02 10:26:53,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:53,343 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1333 transitions. [2024-12-02 10:26:53,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:26:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1333 transitions. [2024-12-02 10:26:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:26:53,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:53,344 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:53,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 10:26:53,344 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:53,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash 310044203, now seen corresponding path program 1 times [2024-12-02 10:26:53,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347381072] [2024-12-02 10:26:53,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:53,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:54,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:54,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347381072] [2024-12-02 10:26:54,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347381072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:54,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:54,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:26:54,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978210378] [2024-12-02 10:26:54,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:54,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:26:54,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:54,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:26:54,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:26:54,410 INFO L87 Difference]: Start difference. First operand 1094 states and 1333 transitions. Second operand has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:55,314 INFO L93 Difference]: Finished difference Result 1884 states and 2326 transitions. [2024-12-02 10:26:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:26:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-12-02 10:26:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:55,317 INFO L225 Difference]: With dead ends: 1884 [2024-12-02 10:26:55,317 INFO L226 Difference]: Without dead ends: 1297 [2024-12-02 10:26:55,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:26:55,318 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 60 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:55,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 661 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:26:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-12-02 10:26:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1074. [2024-12-02 10:26:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 994 states have (on average 1.204225352112676) internal successors, (1197), 997 states have internal predecessors, (1197), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1313 transitions. [2024-12-02 10:26:55,425 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1313 transitions. Word has length 125 [2024-12-02 10:26:55,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:55,426 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1313 transitions. [2024-12-02 10:26:55,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:26:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1313 transitions. [2024-12-02 10:26:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:26:55,426 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:55,426 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:55,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 10:26:55,427 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:55,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1759717519, now seen corresponding path program 1 times [2024-12-02 10:26:55,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:55,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156307616] [2024-12-02 10:26:55,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:55,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:56,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156307616] [2024-12-02 10:26:56,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156307616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:56,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:56,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:26:56,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646518263] [2024-12-02 10:26:56,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:56,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:26:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:56,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:26:56,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:26:56,741 INFO L87 Difference]: Start difference. First operand 1074 states and 1313 transitions. Second operand has 14 states, 10 states have (on average 5.8) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:26:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:58,437 INFO L93 Difference]: Finished difference Result 1835 states and 2254 transitions. [2024-12-02 10:26:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:26:58,438 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.8) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 125 [2024-12-02 10:26:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:58,440 INFO L225 Difference]: With dead ends: 1835 [2024-12-02 10:26:58,440 INFO L226 Difference]: Without dead ends: 1244 [2024-12-02 10:26:58,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:26:58,441 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 165 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:58,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 897 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 10:26:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-12-02 10:26:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1076. [2024-12-02 10:26:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 996 states have (on average 1.2028112449799198) internal successors, (1198), 999 states have internal predecessors, (1198), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:26:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1314 transitions. [2024-12-02 10:26:58,550 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1314 transitions. Word has length 125 [2024-12-02 10:26:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:58,550 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1314 transitions. [2024-12-02 10:26:58,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.8) internal successors, (58), 14 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 10:26:58,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1314 transitions. [2024-12-02 10:26:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:26:58,551 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:58,551 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:58,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 10:26:58,551 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:58,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash 525481925, now seen corresponding path program 1 times [2024-12-02 10:26:58,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:58,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056358996] [2024-12-02 10:26:58,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:58,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:00,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:00,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056358996] [2024-12-02 10:27:00,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056358996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:00,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:00,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-12-02 10:27:00,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534707979] [2024-12-02 10:27:00,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:00,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:27:00,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:00,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:27:00,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:27:00,787 INFO L87 Difference]: Start difference. First operand 1076 states and 1314 transitions. Second operand has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:27:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,286 INFO L93 Difference]: Finished difference Result 1863 states and 2283 transitions. [2024-12-02 10:27:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 10:27:04,286 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2024-12-02 10:27:04,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,288 INFO L225 Difference]: With dead ends: 1863 [2024-12-02 10:27:04,288 INFO L226 Difference]: Without dead ends: 1279 [2024-12-02 10:27:04,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=263, Invalid=1807, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 10:27:04,289 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 278 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1347 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 10:27:04,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-12-02 10:27:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1086. [2024-12-02 10:27:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1006 states have (on average 1.2007952286282306) internal successors, (1208), 1009 states have internal predecessors, (1208), 58 states have call successors, (58), 21 states have call predecessors, (58), 21 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 10:27:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1324 transitions. [2024-12-02 10:27:04,401 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1324 transitions. Word has length 127 [2024-12-02 10:27:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,401 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1324 transitions. [2024-12-02 10:27:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:27:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1324 transitions. [2024-12-02 10:27:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 10:27:04,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,402 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 10:27:04,402 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:04,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1035845581, now seen corresponding path program 1 times [2024-12-02 10:27:04,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068611078] [2024-12-02 10:27:04,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:05,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:05,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068611078] [2024-12-02 10:27:05,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068611078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:05,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:05,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 10:27:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716488067] [2024-12-02 10:27:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:05,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 10:27:05,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:05,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 10:27:05,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:27:05,733 INFO L87 Difference]: Start difference. First operand 1086 states and 1324 transitions. Second operand has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:08,416 INFO L93 Difference]: Finished difference Result 2554 states and 3149 transitions. [2024-12-02 10:27:08,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 10:27:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-12-02 10:27:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:08,420 INFO L225 Difference]: With dead ends: 2554 [2024-12-02 10:27:08,420 INFO L226 Difference]: Without dead ends: 1916 [2024-12-02 10:27:08,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=226, Invalid=1580, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 10:27:08,421 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 307 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:08,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1484 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:27:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2024-12-02 10:27:08,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1385. [2024-12-02 10:27:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1272 states have (on average 1.1918238993710693) internal successors, (1516), 1277 states have internal predecessors, (1516), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:08,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1680 transitions. [2024-12-02 10:27:08,582 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1680 transitions. Word has length 127 [2024-12-02 10:27:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:08,582 INFO L471 AbstractCegarLoop]: Abstraction has 1385 states and 1680 transitions. [2024-12-02 10:27:08,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:27:08,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1680 transitions. [2024-12-02 10:27:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 10:27:08,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:08,584 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:08,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 10:27:08,584 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:08,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1238074080, now seen corresponding path program 1 times [2024-12-02 10:27:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:08,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709974046] [2024-12-02 10:27:08,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 45 proven. 10 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-12-02 10:27:10,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:10,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709974046] [2024-12-02 10:27:10,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709974046] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:10,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480851324] [2024-12-02 10:27:10,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:10,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:10,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:10,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:10,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:27:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:10,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:27:10,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:10,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2024-12-02 10:27:10,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:10,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2024-12-02 10:27:10,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:10,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 43 [2024-12-02 10:27:10,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:10,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 43 [2024-12-02 10:27:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2024-12-02 10:27:10,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480851324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-12-02 10:27:10,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548511537] [2024-12-02 10:27:10,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:10,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:10,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:10,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:27:10,798 INFO L87 Difference]: Start difference. First operand 1385 states and 1680 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:11,549 INFO L93 Difference]: Finished difference Result 2172 states and 2658 transitions. [2024-12-02 10:27:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:27:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 232 [2024-12-02 10:27:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:11,552 INFO L225 Difference]: With dead ends: 2172 [2024-12-02 10:27:11,552 INFO L226 Difference]: Without dead ends: 1588 [2024-12-02 10:27:11,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:27:11,553 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 201 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:11,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 271 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:27:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-12-02 10:27:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1382. [2024-12-02 10:27:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1269 states have (on average 1.1922773837667455) internal successors, (1513), 1274 states have internal predecessors, (1513), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1677 transitions. [2024-12-02 10:27:11,715 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1677 transitions. Word has length 232 [2024-12-02 10:27:11,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:11,715 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1677 transitions. [2024-12-02 10:27:11,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1677 transitions. [2024-12-02 10:27:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 10:27:11,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:11,716 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:11,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 10:27:11,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-12-02 10:27:11,917 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:11,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:11,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1062748510, now seen corresponding path program 1 times [2024-12-02 10:27:11,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:11,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593352169] [2024-12-02 10:27:11,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:11,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2024-12-02 10:27:12,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:12,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593352169] [2024-12-02 10:27:12,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593352169] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:12,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:12,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841623284] [2024-12-02 10:27:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:12,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:12,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:12,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:12,604 INFO L87 Difference]: Start difference. First operand 1382 states and 1677 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:13,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:13,105 INFO L93 Difference]: Finished difference Result 2054 states and 2514 transitions. [2024-12-02 10:27:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:27:13,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 232 [2024-12-02 10:27:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:13,109 INFO L225 Difference]: With dead ends: 2054 [2024-12-02 10:27:13,109 INFO L226 Difference]: Without dead ends: 1467 [2024-12-02 10:27:13,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:13,110 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 44 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:13,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 385 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:13,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-12-02 10:27:13,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1379. [2024-12-02 10:27:13,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1266 states have (on average 1.1903633491311216) internal successors, (1507), 1271 states have internal predecessors, (1507), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1671 transitions. [2024-12-02 10:27:13,398 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1671 transitions. Word has length 232 [2024-12-02 10:27:13,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:13,398 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 1671 transitions. [2024-12-02 10:27:13,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1671 transitions. [2024-12-02 10:27:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 10:27:13,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:13,400 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:13,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 10:27:13,400 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:13,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1659888682, now seen corresponding path program 1 times [2024-12-02 10:27:13,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:13,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549662716] [2024-12-02 10:27:13,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2024-12-02 10:27:14,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:14,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549662716] [2024-12-02 10:27:14,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549662716] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:14,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354337769] [2024-12-02 10:27:14,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:14,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:14,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:14,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:14,013 INFO L87 Difference]: Start difference. First operand 1379 states and 1671 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:14,477 INFO L93 Difference]: Finished difference Result 2343 states and 2859 transitions. [2024-12-02 10:27:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:27:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 232 [2024-12-02 10:27:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:14,481 INFO L225 Difference]: With dead ends: 2343 [2024-12-02 10:27:14,481 INFO L226 Difference]: Without dead ends: 1448 [2024-12-02 10:27:14,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:14,483 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 59 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:14,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 414 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-12-02 10:27:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1363. [2024-12-02 10:27:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1250 states have (on average 1.18) internal successors, (1475), 1255 states have internal predecessors, (1475), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1639 transitions. [2024-12-02 10:27:14,653 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1639 transitions. Word has length 232 [2024-12-02 10:27:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:14,654 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1639 transitions. [2024-12-02 10:27:14,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1639 transitions. [2024-12-02 10:27:14,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 10:27:14,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:14,655 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:14,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-12-02 10:27:14,655 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:14,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 380025004, now seen corresponding path program 1 times [2024-12-02 10:27:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:14,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523104401] [2024-12-02 10:27:14,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:14,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 45 proven. 10 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-12-02 10:27:18,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:18,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523104401] [2024-12-02 10:27:18,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523104401] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:18,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341381104] [2024-12-02 10:27:18,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:18,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:18,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:18,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:18,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:27:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:18,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:27:18,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:18,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 10:27:18,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2024-12-02 10:27:18,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:18,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 29 [2024-12-02 10:27:18,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:18,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 29 [2024-12-02 10:27:18,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:18,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 29 [2024-12-02 10:27:18,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:18,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2024-12-02 10:27:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2024-12-02 10:27:18,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:18,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341381104] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:18,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-12-02 10:27:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11057635] [2024-12-02 10:27:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:18,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:27:18,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:18,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:27:18,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:27:18,739 INFO L87 Difference]: Start difference. First operand 1363 states and 1639 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:19,184 INFO L93 Difference]: Finished difference Result 2327 states and 2811 transitions. [2024-12-02 10:27:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:27:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 232 [2024-12-02 10:27:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:19,187 INFO L225 Difference]: With dead ends: 2327 [2024-12-02 10:27:19,187 INFO L226 Difference]: Without dead ends: 1448 [2024-12-02 10:27:19,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 245 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:27:19,188 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 50 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:19,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 341 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-12-02 10:27:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1363. [2024-12-02 10:27:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1250 states have (on average 1.1672) internal successors, (1459), 1255 states have internal predecessors, (1459), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1623 transitions. [2024-12-02 10:27:19,350 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1623 transitions. Word has length 232 [2024-12-02 10:27:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1623 transitions. [2024-12-02 10:27:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1623 transitions. [2024-12-02 10:27:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 10:27:19,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:19,351 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:19,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:27:19,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-12-02 10:27:19,552 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:19,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:19,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1916641684, now seen corresponding path program 1 times [2024-12-02 10:27:19,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:19,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003453697] [2024-12-02 10:27:19,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:19,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2024-12-02 10:27:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003453697] [2024-12-02 10:27:20,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003453697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:20,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:20,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:27:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291380607] [2024-12-02 10:27:20,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:20,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:27:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:20,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:27:20,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:20,413 INFO L87 Difference]: Start difference. First operand 1363 states and 1623 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:20,980 INFO L93 Difference]: Finished difference Result 2912 states and 3450 transitions. [2024-12-02 10:27:20,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:27:20,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 233 [2024-12-02 10:27:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:20,983 INFO L225 Difference]: With dead ends: 2912 [2024-12-02 10:27:20,983 INFO L226 Difference]: Without dead ends: 1749 [2024-12-02 10:27:20,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:27:20,984 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 175 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:20,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 251 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-12-02 10:27:21,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1468. [2024-12-02 10:27:21,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1355 states have (on average 1.1808118081180812) internal successors, (1600), 1360 states have internal predecessors, (1600), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1764 transitions. [2024-12-02 10:27:21,153 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1764 transitions. Word has length 233 [2024-12-02 10:27:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:21,153 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1764 transitions. [2024-12-02 10:27:21,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1764 transitions. [2024-12-02 10:27:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 10:27:21,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:21,155 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:21,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-12-02 10:27:21,156 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash 572887278, now seen corresponding path program 1 times [2024-12-02 10:27:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306972592] [2024-12-02 10:27:21,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:21,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-12-02 10:27:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306972592] [2024-12-02 10:27:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306972592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:21,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486887134] [2024-12-02 10:27:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:21,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:21,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:21,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:21,817 INFO L87 Difference]: Start difference. First operand 1468 states and 1764 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:22,565 INFO L93 Difference]: Finished difference Result 3274 states and 3920 transitions. [2024-12-02 10:27:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:22,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 233 [2024-12-02 10:27:22,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:22,569 INFO L225 Difference]: With dead ends: 3274 [2024-12-02 10:27:22,569 INFO L226 Difference]: Without dead ends: 1921 [2024-12-02 10:27:22,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:27:22,571 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 87 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:22,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 853 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2024-12-02 10:27:22,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1468. [2024-12-02 10:27:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1355 states have (on average 1.1808118081180812) internal successors, (1600), 1360 states have internal predecessors, (1600), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:22,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1764 transitions. [2024-12-02 10:27:22,749 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1764 transitions. Word has length 233 [2024-12-02 10:27:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:22,750 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1764 transitions. [2024-12-02 10:27:22,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1764 transitions. [2024-12-02 10:27:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 10:27:22,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:22,751 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:22,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-12-02 10:27:22,752 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:22,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash -128177300, now seen corresponding path program 1 times [2024-12-02 10:27:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:22,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756269173] [2024-12-02 10:27:22,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2024-12-02 10:27:23,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:23,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756269173] [2024-12-02 10:27:23,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756269173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:23,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:23,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:23,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421592843] [2024-12-02 10:27:23,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:23,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:23,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:23,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:23,319 INFO L87 Difference]: Start difference. First operand 1468 states and 1764 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:23,771 INFO L93 Difference]: Finished difference Result 2926 states and 3488 transitions. [2024-12-02 10:27:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:23,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 233 [2024-12-02 10:27:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:23,774 INFO L225 Difference]: With dead ends: 2926 [2024-12-02 10:27:23,774 INFO L226 Difference]: Without dead ends: 1573 [2024-12-02 10:27:23,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:27:23,776 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 163 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:23,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 213 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:27:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2024-12-02 10:27:23,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1450. [2024-12-02 10:27:23,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1337 states have (on average 1.174270755422588) internal successors, (1570), 1342 states have internal predecessors, (1570), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1734 transitions. [2024-12-02 10:27:23,951 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1734 transitions. Word has length 233 [2024-12-02 10:27:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:23,951 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 1734 transitions. [2024-12-02 10:27:23,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1734 transitions. [2024-12-02 10:27:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-02 10:27:23,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:23,953 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:23,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-02 10:27:23,953 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:23,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash 721724681, now seen corresponding path program 1 times [2024-12-02 10:27:23,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:23,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516071153] [2024-12-02 10:27:23,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:24,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1547 trivial. 0 not checked. [2024-12-02 10:27:24,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:24,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516071153] [2024-12-02 10:27:24,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516071153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:24,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:24,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:24,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096566853] [2024-12-02 10:27:24,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:24,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:24,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:24,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:24,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:24,939 INFO L87 Difference]: Start difference. First operand 1450 states and 1734 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:25,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:25,603 INFO L93 Difference]: Finished difference Result 2773 states and 3291 transitions. [2024-12-02 10:27:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:27:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 234 [2024-12-02 10:27:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:25,606 INFO L225 Difference]: With dead ends: 2773 [2024-12-02 10:27:25,606 INFO L226 Difference]: Without dead ends: 1769 [2024-12-02 10:27:25,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:25,607 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 96 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:25,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 467 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-12-02 10:27:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1675. [2024-12-02 10:27:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1562 states have (on average 1.1568501920614596) internal successors, (1807), 1567 states have internal predecessors, (1807), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 1971 transitions. [2024-12-02 10:27:25,830 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 1971 transitions. Word has length 234 [2024-12-02 10:27:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:25,830 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 1971 transitions. [2024-12-02 10:27:25,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 1971 transitions. [2024-12-02 10:27:25,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-12-02 10:27:25,831 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:25,832 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:25,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-02 10:27:25,832 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:25,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2023140006, now seen corresponding path program 1 times [2024-12-02 10:27:25,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:25,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642169309] [2024-12-02 10:27:25,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1547 trivial. 0 not checked. [2024-12-02 10:27:26,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642169309] [2024-12-02 10:27:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642169309] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:26,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:26,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:26,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031138065] [2024-12-02 10:27:26,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:26,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:26,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:26,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:26,856 INFO L87 Difference]: Start difference. First operand 1675 states and 1971 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:27,425 INFO L93 Difference]: Finished difference Result 2864 states and 3376 transitions. [2024-12-02 10:27:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:27:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 236 [2024-12-02 10:27:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:27,429 INFO L225 Difference]: With dead ends: 2864 [2024-12-02 10:27:27,429 INFO L226 Difference]: Without dead ends: 1764 [2024-12-02 10:27:27,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:27,431 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 79 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:27,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 466 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-12-02 10:27:27,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1599. [2024-12-02 10:27:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1486 states have (on average 1.1567967698519515) internal successors, (1719), 1491 states have internal predecessors, (1719), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 1883 transitions. [2024-12-02 10:27:27,630 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 1883 transitions. Word has length 236 [2024-12-02 10:27:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:27,630 INFO L471 AbstractCegarLoop]: Abstraction has 1599 states and 1883 transitions. [2024-12-02 10:27:27,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 1883 transitions. [2024-12-02 10:27:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-12-02 10:27:27,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:27,632 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:27,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-12-02 10:27:27,632 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:27,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1204458600, now seen corresponding path program 1 times [2024-12-02 10:27:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041966847] [2024-12-02 10:27:27,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1549 trivial. 0 not checked. [2024-12-02 10:27:27,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041966847] [2024-12-02 10:27:27,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041966847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:27,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:27,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:27:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227266951] [2024-12-02 10:27:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:27,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:27,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:27,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:27,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:27,699 INFO L87 Difference]: Start difference. First operand 1599 states and 1883 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:27,885 INFO L93 Difference]: Finished difference Result 2575 states and 3046 transitions. [2024-12-02 10:27:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:27,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 236 [2024-12-02 10:27:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:27,887 INFO L225 Difference]: With dead ends: 2575 [2024-12-02 10:27:27,887 INFO L226 Difference]: Without dead ends: 1430 [2024-12-02 10:27:27,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:27,889 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:27,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:27,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-12-02 10:27:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1422. [2024-12-02 10:27:28,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1309 states have (on average 1.1512605042016806) internal successors, (1507), 1314 states have internal predecessors, (1507), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1671 transitions. [2024-12-02 10:27:28,068 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1671 transitions. Word has length 236 [2024-12-02 10:27:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:28,068 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1671 transitions. [2024-12-02 10:27:28,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1671 transitions. [2024-12-02 10:27:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-12-02 10:27:28,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:28,070 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:28,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-12-02 10:27:28,070 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:28,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1266498214, now seen corresponding path program 1 times [2024-12-02 10:27:28,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981375551] [2024-12-02 10:27:28,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1547 trivial. 0 not checked. [2024-12-02 10:27:29,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:29,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981375551] [2024-12-02 10:27:29,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981375551] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:29,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:29,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:27:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697725312] [2024-12-02 10:27:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:29,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:27:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:29,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:27:29,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:27:29,078 INFO L87 Difference]: Start difference. First operand 1422 states and 1671 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:29,691 INFO L93 Difference]: Finished difference Result 2575 states and 3013 transitions. [2024-12-02 10:27:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:27:29,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 236 [2024-12-02 10:27:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:29,694 INFO L225 Difference]: With dead ends: 2575 [2024-12-02 10:27:29,694 INFO L226 Difference]: Without dead ends: 1599 [2024-12-02 10:27:29,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:29,695 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 94 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:29,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 397 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:27:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2024-12-02 10:27:29,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1368. [2024-12-02 10:27:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1255 states have (on average 1.150597609561753) internal successors, (1444), 1260 states have internal predecessors, (1444), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:29,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1608 transitions. [2024-12-02 10:27:29,875 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1608 transitions. Word has length 236 [2024-12-02 10:27:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:29,875 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1608 transitions. [2024-12-02 10:27:29,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:27:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1608 transitions. [2024-12-02 10:27:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-12-02 10:27:29,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:29,876 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:29,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-12-02 10:27:29,876 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:29,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:29,877 INFO L85 PathProgramCache]: Analyzing trace with hash -79242639, now seen corresponding path program 1 times [2024-12-02 10:27:29,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:29,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609698766] [2024-12-02 10:27:29,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:29,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 46 proven. 9 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-12-02 10:27:32,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:32,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609698766] [2024-12-02 10:27:32,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609698766] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:32,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805258705] [2024-12-02 10:27:32,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:32,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:32,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:27:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:32,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:27:32,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:32,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2024-12-02 10:27:33,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:33,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2024-12-02 10:27:33,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:33,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 40 [2024-12-02 10:27:33,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:33,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2024-12-02 10:27:33,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:33,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 19 [2024-12-02 10:27:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2024-12-02 10:27:33,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:27:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805258705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:27:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 17 [2024-12-02 10:27:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179045766] [2024-12-02 10:27:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:33,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:27:33,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:33,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:27:33,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:27:33,230 INFO L87 Difference]: Start difference. First operand 1368 states and 1608 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:34,031 INFO L93 Difference]: Finished difference Result 2234 states and 2620 transitions. [2024-12-02 10:27:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:27:34,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 237 [2024-12-02 10:27:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:34,034 INFO L225 Difference]: With dead ends: 2234 [2024-12-02 10:27:34,034 INFO L226 Difference]: Without dead ends: 1617 [2024-12-02 10:27:34,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:27:34,035 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 146 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:34,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 457 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:27:34,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-12-02 10:27:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1379. [2024-12-02 10:27:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1266 states have (on average 1.1492890995260663) internal successors, (1455), 1271 states have internal predecessors, (1455), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 10:27:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1619 transitions. [2024-12-02 10:27:34,226 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1619 transitions. Word has length 237 [2024-12-02 10:27:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:34,226 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 1619 transitions. [2024-12-02 10:27:34,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 10:27:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1619 transitions. [2024-12-02 10:27:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-12-02 10:27:34,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:34,228 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:34,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:27:34,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-12-02 10:27:34,428 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:34,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1006542989, now seen corresponding path program 1 times [2024-12-02 10:27:34,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304693797] [2024-12-02 10:27:34,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 46 proven. 9 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-12-02 10:27:40,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:40,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304693797] [2024-12-02 10:27:40,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304693797] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:40,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434042787] [2024-12-02 10:27:40,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:40,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:40,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:40,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:40,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:27:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:41,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-12-02 10:27:41,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:41,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 10:27:41,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 10:27:41,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 10:27:41,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 10:27:41,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 10:27:41,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 13 [2024-12-02 10:27:41,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:41,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2024-12-02 10:27:41,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:41,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 30 [2024-12-02 10:27:41,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:27:41,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 39 [2024-12-02 10:27:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 926 proven. 33 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-12-02 10:27:41,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 23 proven. 113 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-12-02 10:27:43,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434042787] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:43,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:43,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 15] total 39 [2024-12-02 10:27:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882476750] [2024-12-02 10:27:43,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:43,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 10:27:43,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:43,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 10:27:43,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1339, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 10:27:43,378 INFO L87 Difference]: Start difference. First operand 1379 states and 1619 transitions. Second operand has 39 states, 31 states have (on average 8.516129032258064) internal successors, (264), 39 states have internal predecessors, (264), 17 states have call successors, (82), 4 states have call predecessors, (82), 6 states have return successors, (82), 10 states have call predecessors, (82), 17 states have call successors, (82) [2024-12-02 10:27:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:57,641 INFO L93 Difference]: Finished difference Result 3671 states and 4229 transitions. [2024-12-02 10:27:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-12-02 10:27:57,641 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 31 states have (on average 8.516129032258064) internal successors, (264), 39 states have internal predecessors, (264), 17 states have call successors, (82), 4 states have call predecessors, (82), 6 states have return successors, (82), 10 states have call predecessors, (82), 17 states have call successors, (82) Word has length 237 [2024-12-02 10:27:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:57,645 INFO L225 Difference]: With dead ends: 3671 [2024-12-02 10:27:57,645 INFO L226 Difference]: Without dead ends: 2713 [2024-12-02 10:27:57,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 478 SyntacticMatches, 6 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2684 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=1619, Invalid=9093, Unknown=0, NotChecked=0, Total=10712 [2024-12-02 10:27:57,648 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 973 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 5696 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 6207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 5696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:57,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2405 Invalid, 6207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 5696 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-12-02 10:27:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2024-12-02 10:27:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1799. [2024-12-02 10:27:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1624 states have (on average 1.1391625615763548) internal successors, (1850), 1630 states have internal predecessors, (1850), 118 states have call successors, (118), 56 states have call predecessors, (118), 56 states have return successors, (118), 112 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 10:27:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2086 transitions. [2024-12-02 10:27:58,024 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2086 transitions. Word has length 237 [2024-12-02 10:27:58,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:58,025 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2086 transitions. [2024-12-02 10:27:58,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 31 states have (on average 8.516129032258064) internal successors, (264), 39 states have internal predecessors, (264), 17 states have call successors, (82), 4 states have call predecessors, (82), 6 states have return successors, (82), 10 states have call predecessors, (82), 17 states have call successors, (82) [2024-12-02 10:27:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2086 transitions. [2024-12-02 10:27:58,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-02 10:27:58,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:58,027 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:58,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:27:58,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_415eb0b5-3326-4880-9996-c19ab13e0ae2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-12-02 10:27:58,227 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:58,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash 702223317, now seen corresponding path program 1 times [2024-12-02 10:27:58,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:58,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66403014] [2024-12-02 10:27:58,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2024-12-02 10:28:00,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:00,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66403014] [2024-12-02 10:28:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66403014] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:00,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:00,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:28:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65940089] [2024-12-02 10:28:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:00,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:28:00,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:00,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:28:00,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:28:00,167 INFO L87 Difference]: Start difference. First operand 1799 states and 2086 transitions. Second operand has 8 states, 6 states have (on average 14.666666666666666) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:28:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:01,263 INFO L93 Difference]: Finished difference Result 3490 states and 4002 transitions. [2024-12-02 10:28:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:28:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.666666666666666) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 242 [2024-12-02 10:28:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:01,266 INFO L225 Difference]: With dead ends: 3490 [2024-12-02 10:28:01,267 INFO L226 Difference]: Without dead ends: 2120 [2024-12-02 10:28:01,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:28:01,268 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 59 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:01,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 474 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:28:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2024-12-02 10:28:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1598. [2024-12-02 10:28:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1423 states have (on average 1.117357695010541) internal successors, (1590), 1429 states have internal predecessors, (1590), 118 states have call successors, (118), 56 states have call predecessors, (118), 56 states have return successors, (118), 112 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 10:28:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 1826 transitions. [2024-12-02 10:28:01,619 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 1826 transitions. Word has length 242 [2024-12-02 10:28:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:01,619 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 1826 transitions. [2024-12-02 10:28:01,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.666666666666666) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:28:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 1826 transitions. [2024-12-02 10:28:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-02 10:28:01,621 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:01,621 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:01,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-12-02 10:28:01,621 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:01,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash -577640361, now seen corresponding path program 1 times [2024-12-02 10:28:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592066446] [2024-12-02 10:28:01,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2024-12-02 10:28:03,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:03,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592066446] [2024-12-02 10:28:03,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592066446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:03,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:03,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:28:03,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235284065] [2024-12-02 10:28:03,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:03,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:28:03,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:03,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:28:03,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:28:03,788 INFO L87 Difference]: Start difference. First operand 1598 states and 1826 transitions. Second operand has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 10:28:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:05,392 INFO L93 Difference]: Finished difference Result 2937 states and 3331 transitions. [2024-12-02 10:28:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:28:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) Word has length 242 [2024-12-02 10:28:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:05,395 INFO L225 Difference]: With dead ends: 2937 [2024-12-02 10:28:05,395 INFO L226 Difference]: Without dead ends: 1768 [2024-12-02 10:28:05,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:28:05,397 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 55 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:05,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 815 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:28:05,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-12-02 10:28:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1548. [2024-12-02 10:28:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1373 states have (on average 1.1114348142753094) internal successors, (1526), 1379 states have internal predecessors, (1526), 118 states have call successors, (118), 56 states have call predecessors, (118), 56 states have return successors, (118), 112 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 10:28:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1762 transitions. [2024-12-02 10:28:05,728 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1762 transitions. Word has length 242 [2024-12-02 10:28:05,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:05,729 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 1762 transitions. [2024-12-02 10:28:05,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 10:28:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1762 transitions. [2024-12-02 10:28:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-02 10:28:05,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:05,731 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-12-02 10:28:05,731 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:05,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2017930601, now seen corresponding path program 1 times [2024-12-02 10:28:05,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:05,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894035215] [2024-12-02 10:28:05,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2024-12-02 10:28:11,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:11,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894035215] [2024-12-02 10:28:11,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894035215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:11,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:11,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 10:28:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49472222] [2024-12-02 10:28:11,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:11,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 10:28:11,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:11,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 10:28:11,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:28:11,462 INFO L87 Difference]: Start difference. First operand 1548 states and 1762 transitions. Second operand has 17 states, 12 states have (on average 7.75) internal successors, (93), 17 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 10:28:21,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:28:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:26,042 INFO L93 Difference]: Finished difference Result 2613 states and 2949 transitions. [2024-12-02 10:28:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 10:28:26,043 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 7.75) internal successors, (93), 17 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) Word has length 242 [2024-12-02 10:28:26,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:26,046 INFO L225 Difference]: With dead ends: 2613 [2024-12-02 10:28:26,046 INFO L226 Difference]: Without dead ends: 1842 [2024-12-02 10:28:26,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:28:26,047 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 167 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:26,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1519 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2146 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2024-12-02 10:28:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2024-12-02 10:28:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1552. [2024-12-02 10:28:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1377 states have (on average 1.111837327523602) internal successors, (1531), 1383 states have internal predecessors, (1531), 118 states have call successors, (118), 56 states have call predecessors, (118), 56 states have return successors, (118), 112 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 10:28:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1767 transitions. [2024-12-02 10:28:26,521 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1767 transitions. Word has length 242 [2024-12-02 10:28:26,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:26,521 INFO L471 AbstractCegarLoop]: Abstraction has 1552 states and 1767 transitions. [2024-12-02 10:28:26,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 7.75) internal successors, (93), 17 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 10:28:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1767 transitions. [2024-12-02 10:28:26,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-02 10:28:26,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:26,523 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:26,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-12-02 10:28:26,523 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:26,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1900140901, now seen corresponding path program 1 times [2024-12-02 10:28:26,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:26,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467697888] [2024-12-02 10:28:26,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:26,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2024-12-02 10:28:28,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:28,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467697888] [2024-12-02 10:28:28,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467697888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:28,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:28,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:28:28,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521906237] [2024-12-02 10:28:28,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:28,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:28:28,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:28,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:28:28,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:28:28,891 INFO L87 Difference]: Start difference. First operand 1552 states and 1767 transitions. Second operand has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 10:28:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:30,926 INFO L93 Difference]: Finished difference Result 2445 states and 2768 transitions. [2024-12-02 10:28:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:28:30,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) Word has length 242 [2024-12-02 10:28:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:30,929 INFO L225 Difference]: With dead ends: 2445 [2024-12-02 10:28:30,929 INFO L226 Difference]: Without dead ends: 1668 [2024-12-02 10:28:30,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:28:30,930 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 54 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:30,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 648 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:28:30,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-12-02 10:28:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1484. [2024-12-02 10:28:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1309 states have (on average 1.1092436974789917) internal successors, (1452), 1315 states have internal predecessors, (1452), 118 states have call successors, (118), 56 states have call predecessors, (118), 56 states have return successors, (118), 112 states have call predecessors, (118), 118 states have call successors, (118) [2024-12-02 10:28:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1688 transitions. [2024-12-02 10:28:31,301 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1688 transitions. Word has length 242 [2024-12-02 10:28:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:31,301 INFO L471 AbstractCegarLoop]: Abstraction has 1484 states and 1688 transitions. [2024-12-02 10:28:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 13.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 10:28:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1688 transitions. [2024-12-02 10:28:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-12-02 10:28:31,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:31,303 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:31,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-12-02 10:28:31,303 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:31,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1154339021, now seen corresponding path program 1 times [2024-12-02 10:28:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55518940] [2024-12-02 10:28:31,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2024-12-02 10:28:37,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:37,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55518940] [2024-12-02 10:28:37,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55518940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:37,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:37,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-12-02 10:28:37,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17529464] [2024-12-02 10:28:37,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:37,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:28:37,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:37,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:28:37,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:28:37,749 INFO L87 Difference]: Start difference. First operand 1484 states and 1688 transitions. Second operand has 23 states, 18 states have (on average 5.166666666666667) internal successors, (93), 23 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 10:28:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:43,315 INFO L93 Difference]: Finished difference Result 2400 states and 2709 transitions. [2024-12-02 10:28:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 10:28:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 5.166666666666667) internal successors, (93), 23 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) Word has length 244 [2024-12-02 10:28:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:43,318 INFO L225 Difference]: With dead ends: 2400 [2024-12-02 10:28:43,318 INFO L226 Difference]: Without dead ends: 1675 [2024-12-02 10:28:43,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=125, Invalid=1357, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 10:28:43,319 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 96 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:43,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2044 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 10:28:43,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-12-02 10:28:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1480. [2024-12-02 10:28:43,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1302 states have (on average 1.108294930875576) internal successors, (1443), 1308 states have internal predecessors, (1443), 120 states have call successors, (120), 57 states have call predecessors, (120), 57 states have return successors, (120), 114 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 10:28:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1683 transitions. [2024-12-02 10:28:43,684 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1683 transitions. Word has length 244 [2024-12-02 10:28:43,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:43,684 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 1683 transitions. [2024-12-02 10:28:43,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 5.166666666666667) internal successors, (93), 23 states have internal predecessors, (93), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 10:28:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1683 transitions. [2024-12-02 10:28:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-12-02 10:28:43,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:43,686 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:43,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-12-02 10:28:43,686 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:43,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1069255213, now seen corresponding path program 1 times [2024-12-02 10:28:43,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:43,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517430010] [2024-12-02 10:28:43,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:43,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:45,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2024-12-02 10:28:45,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:45,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517430010] [2024-12-02 10:28:45,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517430010] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:45,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:45,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 10:28:45,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439798230] [2024-12-02 10:28:45,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:45,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:28:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:45,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:28:45,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:28:45,194 INFO L87 Difference]: Start difference. First operand 1480 states and 1683 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:28:46,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:46,615 INFO L93 Difference]: Finished difference Result 2320 states and 2623 transitions. [2024-12-02 10:28:46,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:28:46,615 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 246 [2024-12-02 10:28:46,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:46,618 INFO L225 Difference]: With dead ends: 2320 [2024-12-02 10:28:46,618 INFO L226 Difference]: Without dead ends: 1607 [2024-12-02 10:28:46,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:28:46,619 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 54 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:46,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1014 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:28:46,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-12-02 10:28:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1500. [2024-12-02 10:28:47,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1312 states have (on average 1.107469512195122) internal successors, (1453), 1319 states have internal predecessors, (1453), 126 states have call successors, (126), 61 states have call predecessors, (126), 61 states have return successors, (126), 119 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 10:28:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1705 transitions. [2024-12-02 10:28:47,019 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1705 transitions. Word has length 246 [2024-12-02 10:28:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:47,019 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1705 transitions. [2024-12-02 10:28:47,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:28:47,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1705 transitions. [2024-12-02 10:28:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-12-02 10:28:47,020 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:47,020 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:47,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-12-02 10:28:47,021 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:47,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash -558891557, now seen corresponding path program 1 times [2024-12-02 10:28:47,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:47,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477399851] [2024-12-02 10:28:47,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:47,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2024-12-02 10:28:48,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:48,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477399851] [2024-12-02 10:28:48,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477399851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:48,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:48,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 10:28:48,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699262005] [2024-12-02 10:28:48,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:48,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:28:48,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:48,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:28:48,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:28:48,275 INFO L87 Difference]: Start difference. First operand 1500 states and 1705 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:28:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:50,219 INFO L93 Difference]: Finished difference Result 2510 states and 2835 transitions. [2024-12-02 10:28:50,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:28:50,219 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 246 [2024-12-02 10:28:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:50,220 INFO L225 Difference]: With dead ends: 2510 [2024-12-02 10:28:50,220 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:28:50,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:28:50,222 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 65 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:50,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1411 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:28:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:28:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:28:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:28:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:28:50,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2024-12-02 10:28:50,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:50,224 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:28:50,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 10:28:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:28:50,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:28:50,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:28:50,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-12-02 10:28:50,228 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:50,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.