./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.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_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:44:42,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:44:42,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:44:42,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:44:42,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:44:42,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:44:42,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:44:42,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:44:42,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:44:42,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:44:42,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:44:42,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:44:42,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:44:42,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:44:42,991 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:44:42,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:44:42,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:44:42,992 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:44:42,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:44:42,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:44:42,994 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:44:42,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:44:42,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:44:42,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:44:42,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:44:42,995 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_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 [2024-11-28 03:44:43,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:44:43,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:44:43,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:44:43,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:44:43,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:44:43,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-28 03:44:46,384 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/data/1468b2f3a/7ba36c5a927146d9a118c61d3c50de93/FLAG5de548084 [2024-11-28 03:44:46,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:44:46,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-28 03:44:46,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/data/1468b2f3a/7ba36c5a927146d9a118c61d3c50de93/FLAG5de548084 [2024-11-28 03:44:46,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/data/1468b2f3a/7ba36c5a927146d9a118c61d3c50de93 [2024-11-28 03:44:46,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:44:46,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:44:46,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:44:46,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:44:46,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:44:46,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:44:46" (1/1) ... [2024-11-28 03:44:46,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:46, skipping insertion in model container [2024-11-28 03:44:46,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:44:46" (1/1) ... [2024-11-28 03:44:47,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:44:47,245 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_baedddec-d8d5-4298-ae83-86bbb57bc293/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-11-28 03:44:47,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:44:47,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:44:47,390 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_baedddec-d8d5-4298-ae83-86bbb57bc293/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-11-28 03:44:47,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:44:47,477 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:44:47,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47 WrapperNode [2024-11-28 03:44:47,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:44:47,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:44:47,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:44:47,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:44:47,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,583 INFO L138 Inliner]: procedures = 27, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-11-28 03:44:47,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:44:47,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:44:47,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:44:47,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:44:47,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,659 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]. [2024-11-28 03:44:47,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,689 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:44:47,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:44:47,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:44:47,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:44:47,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (1/1) ... [2024-11-28 03:44:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:44:47,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:47,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:44:47,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:44:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:44:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:44:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:44:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:44:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:44:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:44:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:44:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:44:48,026 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:44:48,029 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:44:48,822 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-28 03:44:48,822 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:44:48,836 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:44:48,837 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:44:48,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:44:48 BoogieIcfgContainer [2024-11-28 03:44:48,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:44:48,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:44:48,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:44:48,846 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:44:48,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:44:46" (1/3) ... [2024-11-28 03:44:48,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:44:48, skipping insertion in model container [2024-11-28 03:44:48,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:44:47" (2/3) ... [2024-11-28 03:44:48,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:44:48, skipping insertion in model container [2024-11-28 03:44:48,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:44:48" (3/3) ... [2024-11-28 03:44:48,850 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2024-11-28 03:44:48,869 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:44:48,871 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:44:48,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:44:48,971 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;@65010684, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:44:48,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:44:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:44:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:44:48,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:48,999 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:48,999 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:49,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:49,008 INFO L85 PathProgramCache]: Analyzing trace with hash -669687425, now seen corresponding path program 1 times [2024-11-28 03:44:49,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:49,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745660383] [2024-11-28 03:44:49,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:44:49,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:49,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745660383] [2024-11-28 03:44:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745660383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:44:49,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638470911] [2024-11-28 03:44:49,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:49,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:44:49,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:44:49,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:44:49,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:44:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:49,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:44:49,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:44:50,042 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:44:50,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:44:50,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638470911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:50,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:44:50,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:44:50,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020136609] [2024-11-28 03:44:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:50,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:44:50,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:50,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:44:50,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:44:50,085 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:44:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:50,131 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-28 03:44:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:44:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-28 03:44:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:50,142 INFO L225 Difference]: With dead ends: 181 [2024-11-28 03:44:50,142 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 03:44:50,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:44:50,152 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:50,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:44:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 03:44:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 03:44:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:44:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-28 03:44:50,218 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-28 03:44:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:50,218 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-28 03:44:50,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:44:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-28 03:44:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:44:50,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:50,224 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:50,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:44:50,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:44:50,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:50,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1314658275, now seen corresponding path program 1 times [2024-11-28 03:44:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:50,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172694503] [2024-11-28 03:44:50,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:50,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:44:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172694503] [2024-11-28 03:44:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172694503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:44:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501162761] [2024-11-28 03:44:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:56,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:44:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:56,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:44:56,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:44:56,706 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:44:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:58,302 INFO L93 Difference]: Finished difference Result 216 states and 311 transitions. [2024-11-28 03:44:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:44:58,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 131 [2024-11-28 03:44:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:58,305 INFO L225 Difference]: With dead ends: 216 [2024-11-28 03:44:58,305 INFO L226 Difference]: Without dead ends: 129 [2024-11-28 03:44:58,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:44:58,308 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 400 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:58,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 412 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:44:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-28 03:44:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2024-11-28 03:44:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.35) internal successors, (108), 80 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:44:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2024-11-28 03:44:58,350 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 142 transitions. Word has length 131 [2024-11-28 03:44:58,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:58,352 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 142 transitions. [2024-11-28 03:44:58,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:44:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2024-11-28 03:44:58,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:44:58,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:58,357 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:44:58,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:44:58,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:58,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:58,360 INFO L85 PathProgramCache]: Analyzing trace with hash -674347784, now seen corresponding path program 1 times [2024-11-28 03:44:58,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:58,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189772831] [2024-11-28 03:44:58,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:58,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:01,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:01,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189772831] [2024-11-28 03:45:01,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189772831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:01,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:01,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:45:01,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271919178] [2024-11-28 03:45:01,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:01,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:45:01,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:01,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:45:01,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:45:01,445 INFO L87 Difference]: Start difference. First operand 99 states and 142 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:02,171 INFO L93 Difference]: Finished difference Result 289 states and 418 transitions. [2024-11-28 03:45:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:45:02,171 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-11-28 03:45:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:02,174 INFO L225 Difference]: With dead ends: 289 [2024-11-28 03:45:02,175 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 03:45:02,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:02,176 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 272 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:02,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 349 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:45:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 03:45:02,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2024-11-28 03:45:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 145 states have internal predecessors, (195), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:45:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 263 transitions. [2024-11-28 03:45:02,237 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 263 transitions. Word has length 133 [2024-11-28 03:45:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:02,238 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 263 transitions. [2024-11-28 03:45:02,238 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 263 transitions. [2024-11-28 03:45:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:45:02,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:02,246 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:02,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:45:02,246 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:02,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash 719608, now seen corresponding path program 1 times [2024-11-28 03:45:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:02,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027466977] [2024-11-28 03:45:02,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:02,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:04,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027466977] [2024-11-28 03:45:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027466977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:04,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:04,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:45:04,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473185773] [2024-11-28 03:45:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:04,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:45:04,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:04,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:45:04,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:45:04,020 INFO L87 Difference]: Start difference. First operand 182 states and 263 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:04,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:04,446 INFO L93 Difference]: Finished difference Result 413 states and 598 transitions. [2024-11-28 03:45:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:45:04,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-11-28 03:45:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:04,450 INFO L225 Difference]: With dead ends: 413 [2024-11-28 03:45:04,451 INFO L226 Difference]: Without dead ends: 234 [2024-11-28 03:45:04,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:45:04,453 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:04,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 392 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:45:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-28 03:45:04,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-11-28 03:45:04,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.3085714285714285) internal successors, (229), 175 states have internal predecessors, (229), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:45:04,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 331 transitions. [2024-11-28 03:45:04,546 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 331 transitions. Word has length 133 [2024-11-28 03:45:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:04,547 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 331 transitions. [2024-11-28 03:45:04,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:04,547 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 331 transitions. [2024-11-28 03:45:04,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:45:04,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:04,550 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:04,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:45:04,550 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:04,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1097049610, now seen corresponding path program 1 times [2024-11-28 03:45:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902553938] [2024-11-28 03:45:04,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:04,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:05,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:05,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902553938] [2024-11-28 03:45:05,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902553938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:05,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:05,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:45:05,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202327413] [2024-11-28 03:45:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:05,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:45:05,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:05,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:45:05,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:45:05,526 INFO L87 Difference]: Start difference. First operand 230 states and 331 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:06,350 INFO L93 Difference]: Finished difference Result 391 states and 563 transitions. [2024-11-28 03:45:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:06,352 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-28 03:45:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:06,357 INFO L225 Difference]: With dead ends: 391 [2024-11-28 03:45:06,357 INFO L226 Difference]: Without dead ends: 295 [2024-11-28 03:45:06,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:06,359 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:06,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 426 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:45:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-28 03:45:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 230. [2024-11-28 03:45:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.302857142857143) internal successors, (228), 175 states have internal predecessors, (228), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:45:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 330 transitions. [2024-11-28 03:45:06,467 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 330 transitions. Word has length 133 [2024-11-28 03:45:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:06,469 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 330 transitions. [2024-11-28 03:45:06,469 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 330 transitions. [2024-11-28 03:45:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:45:06,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:06,473 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:06,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:45:06,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:06,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:06,476 INFO L85 PathProgramCache]: Analyzing trace with hash -421982218, now seen corresponding path program 1 times [2024-11-28 03:45:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:06,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022170282] [2024-11-28 03:45:06,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:14,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:14,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022170282] [2024-11-28 03:45:14,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022170282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:14,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:14,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:45:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462352647] [2024-11-28 03:45:14,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:14,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:45:14,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:14,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:45:14,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:45:14,167 INFO L87 Difference]: Start difference. First operand 230 states and 330 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:45:17,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:17,460 INFO L93 Difference]: Finished difference Result 372 states and 534 transitions. [2024-11-28 03:45:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:45:17,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 133 [2024-11-28 03:45:17,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:17,464 INFO L225 Difference]: With dead ends: 372 [2024-11-28 03:45:17,466 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 03:45:17,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:45:17,468 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 389 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:17,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 402 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:45:17,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 03:45:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 240. [2024-11-28 03:45:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 185 states have (on average 1.3135135135135134) internal successors, (243), 185 states have internal predecessors, (243), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:45:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 345 transitions. [2024-11-28 03:45:17,572 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 345 transitions. Word has length 133 [2024-11-28 03:45:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:17,573 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 345 transitions. [2024-11-28 03:45:17,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:45:17,575 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 345 transitions. [2024-11-28 03:45:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:45:17,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:17,578 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:17,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:45:17,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:17,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash -163816780, now seen corresponding path program 1 times [2024-11-28 03:45:17,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:17,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392891526] [2024-11-28 03:45:17,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:18,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:18,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392891526] [2024-11-28 03:45:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392891526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:18,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:45:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318936177] [2024-11-28 03:45:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:18,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:45:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:18,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:45:18,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:45:18,440 INFO L87 Difference]: Start difference. First operand 240 states and 345 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:19,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:19,053 INFO L93 Difference]: Finished difference Result 461 states and 664 transitions. [2024-11-28 03:45:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:19,054 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-28 03:45:19,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:19,058 INFO L225 Difference]: With dead ends: 461 [2024-11-28 03:45:19,058 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 03:45:19,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:19,061 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 206 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:19,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 294 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:45:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 03:45:19,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 182. [2024-11-28 03:45:19,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3241379310344827) internal successors, (192), 145 states have internal predecessors, (192), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:45:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2024-11-28 03:45:19,117 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 133 [2024-11-28 03:45:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:19,118 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2024-11-28 03:45:19,118 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:19,118 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2024-11-28 03:45:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:45:19,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:19,122 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:19,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:45:19,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:19,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash -927195155, now seen corresponding path program 1 times [2024-11-28 03:45:19,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:19,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700031083] [2024-11-28 03:45:19,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:19,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:19,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:19,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700031083] [2024-11-28 03:45:19,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700031083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:19,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:19,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:45:19,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822067922] [2024-11-28 03:45:19,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:19,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:45:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:19,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:45:19,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:45:19,216 INFO L87 Difference]: Start difference. First operand 182 states and 260 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:19,269 INFO L93 Difference]: Finished difference Result 363 states and 521 transitions. [2024-11-28 03:45:19,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:45:19,269 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-28 03:45:19,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:19,271 INFO L225 Difference]: With dead ends: 363 [2024-11-28 03:45:19,271 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 03:45:19,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:45:19,272 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 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 [2024-11-28 03:45:19,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:45:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 03:45:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-28 03:45:19,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.3197278911564625) internal successors, (194), 147 states have internal predecessors, (194), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:45:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 262 transitions. [2024-11-28 03:45:19,319 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 262 transitions. Word has length 134 [2024-11-28 03:45:19,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:19,322 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 262 transitions. [2024-11-28 03:45:19,323 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 262 transitions. [2024-11-28 03:45:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:45:19,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:19,327 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:19,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:45:19,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:19,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash -534168145, now seen corresponding path program 1 times [2024-11-28 03:45:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:19,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842507598] [2024-11-28 03:45:19,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:19,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:21,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:21,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842507598] [2024-11-28 03:45:21,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842507598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:21,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:21,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:45:21,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171210929] [2024-11-28 03:45:21,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:21,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:45:21,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:21,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:45:21,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:45:21,234 INFO L87 Difference]: Start difference. First operand 184 states and 262 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:21,978 INFO L93 Difference]: Finished difference Result 398 states and 573 transitions. [2024-11-28 03:45:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-11-28 03:45:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:21,981 INFO L225 Difference]: With dead ends: 398 [2024-11-28 03:45:21,982 INFO L226 Difference]: Without dead ends: 217 [2024-11-28 03:45:21,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:45:21,983 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:21,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 249 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:45:21,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-28 03:45:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2024-11-28 03:45:22,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 177 states have (on average 1.3389830508474576) internal successors, (237), 177 states have internal predecessors, (237), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:45:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions. [2024-11-28 03:45:22,043 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 134 [2024-11-28 03:45:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:22,043 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 305 transitions. [2024-11-28 03:45:22,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions. [2024-11-28 03:45:22,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:45:22,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:22,048 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:22,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:45:22,048 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:22,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash -472128531, now seen corresponding path program 1 times [2024-11-28 03:45:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:22,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548860801] [2024-11-28 03:45:22,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:22,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:23,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:23,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548860801] [2024-11-28 03:45:23,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548860801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:23,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:23,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:45:23,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140832817] [2024-11-28 03:45:23,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:23,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:45:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:23,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:45:23,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:23,037 INFO L87 Difference]: Start difference. First operand 214 states and 305 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:23,835 INFO L93 Difference]: Finished difference Result 371 states and 528 transitions. [2024-11-28 03:45:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-11-28 03:45:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:23,839 INFO L225 Difference]: With dead ends: 371 [2024-11-28 03:45:23,839 INFO L226 Difference]: Without dead ends: 256 [2024-11-28 03:45:23,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:45:23,841 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 159 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:23,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 287 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:45:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-28 03:45:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 241. [2024-11-28 03:45:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 196 states have internal predecessors, (255), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 339 transitions. [2024-11-28 03:45:23,930 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 339 transitions. Word has length 134 [2024-11-28 03:45:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:23,932 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 339 transitions. [2024-11-28 03:45:23,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 339 transitions. [2024-11-28 03:45:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:23,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:23,937 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:23,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:45:23,938 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:23,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:23,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1708220221, now seen corresponding path program 1 times [2024-11-28 03:45:23,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:23,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111715016] [2024-11-28 03:45:23,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:29,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:29,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111715016] [2024-11-28 03:45:29,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111715016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:29,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:29,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:45:29,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463489789] [2024-11-28 03:45:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:29,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:45:29,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:29,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:45:29,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:45:29,335 INFO L87 Difference]: Start difference. First operand 241 states and 339 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:31,338 INFO L93 Difference]: Finished difference Result 589 states and 829 transitions. [2024-11-28 03:45:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:45:31,339 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:31,344 INFO L225 Difference]: With dead ends: 589 [2024-11-28 03:45:31,346 INFO L226 Difference]: Without dead ends: 372 [2024-11-28 03:45:31,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:45:31,348 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 221 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:31,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 389 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:45:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-28 03:45:31,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 322. [2024-11-28 03:45:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 276 states have (on average 1.326086956521739) internal successors, (366), 277 states have internal predecessors, (366), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:31,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 450 transitions. [2024-11-28 03:45:31,454 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 450 transitions. Word has length 135 [2024-11-28 03:45:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:31,455 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 450 transitions. [2024-11-28 03:45:31,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 450 transitions. [2024-11-28 03:45:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:31,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:31,458 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:31,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:45:31,459 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:31,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1212961131, now seen corresponding path program 1 times [2024-11-28 03:45:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:31,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129207078] [2024-11-28 03:45:31,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:35,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:35,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129207078] [2024-11-28 03:45:35,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129207078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:35,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:35,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:45:35,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391929044] [2024-11-28 03:45:35,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:35,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:45:35,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:35,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:45:35,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:45:35,095 INFO L87 Difference]: Start difference. First operand 322 states and 450 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:37,273 INFO L93 Difference]: Finished difference Result 764 states and 1066 transitions. [2024-11-28 03:45:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:45:37,275 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:37,278 INFO L225 Difference]: With dead ends: 764 [2024-11-28 03:45:37,279 INFO L226 Difference]: Without dead ends: 466 [2024-11-28 03:45:37,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:45:37,281 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 455 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:37,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 560 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:45:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-28 03:45:37,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 386. [2024-11-28 03:45:37,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3235294117647058) internal successors, (450), 341 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 534 transitions. [2024-11-28 03:45:37,409 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 534 transitions. Word has length 135 [2024-11-28 03:45:37,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:37,409 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 534 transitions. [2024-11-28 03:45:37,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 534 transitions. [2024-11-28 03:45:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:37,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:37,413 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:37,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:45:37,414 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:37,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash -954795693, now seen corresponding path program 1 times [2024-11-28 03:45:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:37,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971751613] [2024-11-28 03:45:37,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:37,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:39,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971751613] [2024-11-28 03:45:39,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971751613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:39,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:39,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:45:39,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312235756] [2024-11-28 03:45:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:39,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:45:39,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:39,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:45:39,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:45:39,939 INFO L87 Difference]: Start difference. First operand 386 states and 534 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:41,155 INFO L93 Difference]: Finished difference Result 816 states and 1130 transitions. [2024-11-28 03:45:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:45:41,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:41,159 INFO L225 Difference]: With dead ends: 816 [2024-11-28 03:45:41,160 INFO L226 Difference]: Without dead ends: 454 [2024-11-28 03:45:41,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:45:41,163 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 290 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:41,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 400 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:45:41,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-28 03:45:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 386. [2024-11-28 03:45:41,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.311764705882353) internal successors, (446), 341 states have internal predecessors, (446), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 530 transitions. [2024-11-28 03:45:41,251 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 530 transitions. Word has length 135 [2024-11-28 03:45:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:41,252 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 530 transitions. [2024-11-28 03:45:41,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 530 transitions. [2024-11-28 03:45:41,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:41,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:41,255 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:41,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:45:41,255 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:41,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2030609581, now seen corresponding path program 1 times [2024-11-28 03:45:41,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:41,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110491035] [2024-11-28 03:45:41,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:44,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:44,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110491035] [2024-11-28 03:45:44,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110491035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:44,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:44,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:45:44,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416772623] [2024-11-28 03:45:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:44,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:45:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:44,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:45:44,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:45:44,431 INFO L87 Difference]: Start difference. First operand 386 states and 530 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:45,606 INFO L93 Difference]: Finished difference Result 812 states and 1118 transitions. [2024-11-28 03:45:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:45,607 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:45,610 INFO L225 Difference]: With dead ends: 812 [2024-11-28 03:45:45,611 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 03:45:45,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:45:45,612 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 243 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:45,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 327 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:45:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 03:45:45,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 386. [2024-11-28 03:45:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3) internal successors, (442), 341 states have internal predecessors, (442), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:45,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 526 transitions. [2024-11-28 03:45:45,712 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 526 transitions. Word has length 135 [2024-11-28 03:45:45,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:45,713 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 526 transitions. [2024-11-28 03:45:45,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:45,713 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 526 transitions. [2024-11-28 03:45:45,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:45,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:45,716 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:45,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:45:45,716 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:45,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:45,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1772444143, now seen corresponding path program 1 times [2024-11-28 03:45:45,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:45,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809871485] [2024-11-28 03:45:45,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:45,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:49,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809871485] [2024-11-28 03:45:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809871485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:49,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:49,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:45:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798563458] [2024-11-28 03:45:49,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:49,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:45:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:49,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:45:49,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:45:49,498 INFO L87 Difference]: Start difference. First operand 386 states and 526 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:51,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:51,424 INFO L93 Difference]: Finished difference Result 812 states and 1110 transitions. [2024-11-28 03:45:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:45:51,425 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:51,431 INFO L225 Difference]: With dead ends: 812 [2024-11-28 03:45:51,431 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 03:45:51,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:45:51,433 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 347 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:51,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 672 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:45:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 03:45:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 374. [2024-11-28 03:45:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 328 states have (on average 1.298780487804878) internal successors, (426), 329 states have internal predecessors, (426), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 510 transitions. [2024-11-28 03:45:51,556 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 510 transitions. Word has length 135 [2024-11-28 03:45:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:51,557 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 510 transitions. [2024-11-28 03:45:51,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 510 transitions. [2024-11-28 03:45:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:51,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:51,560 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:51,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:45:51,560 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:51,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1358589219, now seen corresponding path program 1 times [2024-11-28 03:45:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886995596] [2024-11-28 03:45:51,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:54,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886995596] [2024-11-28 03:45:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886995596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:54,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:54,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:45:54,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106229623] [2024-11-28 03:45:54,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:54,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:45:54,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:54,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:45:54,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:45:54,144 INFO L87 Difference]: Start difference. First operand 374 states and 510 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:55,321 INFO L93 Difference]: Finished difference Result 607 states and 831 transitions. [2024-11-28 03:45:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:45:55,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:55,325 INFO L225 Difference]: With dead ends: 607 [2024-11-28 03:45:55,325 INFO L226 Difference]: Without dead ends: 416 [2024-11-28 03:45:55,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:45:55,327 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 105 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:55,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 358 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:45:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-28 03:45:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 394. [2024-11-28 03:45:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 348 states have (on average 1.293103448275862) internal successors, (450), 349 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 534 transitions. [2024-11-28 03:45:55,447 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 534 transitions. Word has length 135 [2024-11-28 03:45:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:55,448 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 534 transitions. [2024-11-28 03:45:55,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 534 transitions. [2024-11-28 03:45:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:55,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:55,450 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:55,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:45:55,451 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:55,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:55,451 INFO L85 PathProgramCache]: Analyzing trace with hash 942233371, now seen corresponding path program 1 times [2024-11-28 03:45:55,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:55,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614495796] [2024-11-28 03:45:55,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:55,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:55,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:55,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614495796] [2024-11-28 03:45:55,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614495796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:55,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:55,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:45:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673897242] [2024-11-28 03:45:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:55,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:45:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:55,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:45:55,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:45:55,831 INFO L87 Difference]: Start difference. First operand 394 states and 534 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:56,303 INFO L93 Difference]: Finished difference Result 864 states and 1162 transitions. [2024-11-28 03:45:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:45:56,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-28 03:45:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:56,307 INFO L225 Difference]: With dead ends: 864 [2024-11-28 03:45:56,307 INFO L226 Difference]: Without dead ends: 494 [2024-11-28 03:45:56,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:45:56,308 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 140 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:56,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 299 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:45:56,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-28 03:45:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2024-11-28 03:45:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 392 states have (on average 1.260204081632653) internal successors, (494), 393 states have internal predecessors, (494), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:45:56,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 578 transitions. [2024-11-28 03:45:56,365 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 578 transitions. Word has length 135 [2024-11-28 03:45:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:56,366 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 578 transitions. [2024-11-28 03:45:56,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:56,366 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 578 transitions. [2024-11-28 03:45:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:45:56,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:56,368 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:56,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:45:56,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:56,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:56,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1643297949, now seen corresponding path program 1 times [2024-11-28 03:45:56,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:56,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527900463] [2024-11-28 03:45:56,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:56,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:57,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:57,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527900463] [2024-11-28 03:45:57,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527900463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:57,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:57,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:45:57,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603626774] [2024-11-28 03:45:57,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:57,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:45:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:57,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:45:57,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:45:57,562 INFO L87 Difference]: Start difference. First operand 438 states and 578 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:58,577 INFO L93 Difference]: Finished difference Result 946 states and 1252 transitions. [2024-11-28 03:45:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:45:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-28 03:45:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:58,581 INFO L225 Difference]: With dead ends: 946 [2024-11-28 03:45:58,582 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 03:45:58,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:45:58,583 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 285 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:58,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 342 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:45:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 03:45:58,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 528. [2024-11-28 03:45:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 460 states have (on average 1.2521739130434784) internal successors, (576), 463 states have internal predecessors, (576), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:45:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 700 transitions. [2024-11-28 03:45:58,735 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 700 transitions. Word has length 135 [2024-11-28 03:45:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:58,735 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 700 transitions. [2024-11-28 03:45:58,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:45:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 700 transitions. [2024-11-28 03:45:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:45:58,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:58,737 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:58,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:45:58,737 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:58,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:58,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1620026905, now seen corresponding path program 1 times [2024-11-28 03:45:58,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:58,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333598272] [2024-11-28 03:45:58,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:58,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:45:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:45:58,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:45:58,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333598272] [2024-11-28 03:45:58,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333598272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:45:58,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:45:58,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:45:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034413425] [2024-11-28 03:45:58,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:58,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:45:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:45:58,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:45:58,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:45:58,807 INFO L87 Difference]: Start difference. First operand 528 states and 700 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:45:58,976 INFO L93 Difference]: Finished difference Result 989 states and 1314 transitions. [2024-11-28 03:45:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:45:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-28 03:45:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:45:58,982 INFO L225 Difference]: With dead ends: 989 [2024-11-28 03:45:58,982 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 03:45:58,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:45:58,985 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:45:58,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:45:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 03:45:59,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-11-28 03:45:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 417 states have (on average 1.2446043165467626) internal successors, (519), 420 states have internal predecessors, (519), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:45:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2024-11-28 03:45:59,162 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 136 [2024-11-28 03:45:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:45:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2024-11-28 03:45:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:45:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2024-11-28 03:45:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:45:59,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:45:59,167 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:45:59,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:45:59,167 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:45:59,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:45:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1110553815, now seen corresponding path program 1 times [2024-11-28 03:45:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:45:59,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442619970] [2024-11-28 03:45:59,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:45:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:45:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:00,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442619970] [2024-11-28 03:46:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442619970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:00,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:00,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:46:00,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116054108] [2024-11-28 03:46:00,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:00,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:46:00,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:00,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:46:00,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:46:00,430 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:01,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:01,223 INFO L93 Difference]: Finished difference Result 912 states and 1212 transitions. [2024-11-28 03:46:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:46:01,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136 [2024-11-28 03:46:01,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:01,226 INFO L225 Difference]: With dead ends: 912 [2024-11-28 03:46:01,226 INFO L226 Difference]: Without dead ends: 451 [2024-11-28 03:46:01,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:46:01,228 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:01,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 263 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:46:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-28 03:46:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2024-11-28 03:46:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 382 states have (on average 1.2303664921465969) internal successors, (470), 385 states have internal predecessors, (470), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:01,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 594 transitions. [2024-11-28 03:46:01,390 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 594 transitions. Word has length 136 [2024-11-28 03:46:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:01,391 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 594 transitions. [2024-11-28 03:46:01,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 594 transitions. [2024-11-28 03:46:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:01,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:01,393 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:01,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:46:01,393 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:01,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash 847971409, now seen corresponding path program 1 times [2024-11-28 03:46:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189133701] [2024-11-28 03:46:01,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:01,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189133701] [2024-11-28 03:46:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189133701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:02,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:02,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:46:02,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663617533] [2024-11-28 03:46:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:02,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:46:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:02,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:46:02,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:46:02,237 INFO L87 Difference]: Start difference. First operand 450 states and 594 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:02,997 INFO L93 Difference]: Finished difference Result 953 states and 1256 transitions. [2024-11-28 03:46:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:46:02,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:46:02,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:03,001 INFO L225 Difference]: With dead ends: 953 [2024-11-28 03:46:03,001 INFO L226 Difference]: Without dead ends: 527 [2024-11-28 03:46:03,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:46:03,003 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 213 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:03,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 474 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:46:03,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-28 03:46:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 505. [2024-11-28 03:46:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 437 states have (on average 1.22883295194508) internal successors, (537), 440 states have internal predecessors, (537), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 661 transitions. [2024-11-28 03:46:03,138 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 661 transitions. Word has length 139 [2024-11-28 03:46:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 661 transitions. [2024-11-28 03:46:03,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 661 transitions. [2024-11-28 03:46:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:03,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:03,141 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:03,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:46:03,141 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:03,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1096577190, now seen corresponding path program 1 times [2024-11-28 03:46:03,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:03,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974324694] [2024-11-28 03:46:03,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:03,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:06,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974324694] [2024-11-28 03:46:06,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974324694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:06,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:46:06,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497952985] [2024-11-28 03:46:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:06,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:46:06,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:06,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:46:06,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:46:06,530 INFO L87 Difference]: Start difference. First operand 505 states and 661 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:08,708 INFO L93 Difference]: Finished difference Result 960 states and 1248 transitions. [2024-11-28 03:46:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:46:08,709 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-11-28 03:46:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:08,714 INFO L225 Difference]: With dead ends: 960 [2024-11-28 03:46:08,714 INFO L226 Difference]: Without dead ends: 679 [2024-11-28 03:46:08,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:46:08,717 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 524 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:08,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 397 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:46:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-28 03:46:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 514. [2024-11-28 03:46:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 446 states have (on average 1.2286995515695067) internal successors, (548), 449 states have internal predecessors, (548), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 672 transitions. [2024-11-28 03:46:08,907 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 672 transitions. Word has length 139 [2024-11-28 03:46:08,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:08,908 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 672 transitions. [2024-11-28 03:46:08,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 672 transitions. [2024-11-28 03:46:08,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:08,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:08,910 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:08,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:46:08,911 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:08,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1020534997, now seen corresponding path program 1 times [2024-11-28 03:46:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:08,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941222414] [2024-11-28 03:46:08,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:08,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:09,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:09,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941222414] [2024-11-28 03:46:09,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941222414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:09,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:09,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:09,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803171035] [2024-11-28 03:46:09,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:09,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:09,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:09,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:09,204 INFO L87 Difference]: Start difference. First operand 514 states and 672 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:09,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:09,538 INFO L93 Difference]: Finished difference Result 1063 states and 1389 transitions. [2024-11-28 03:46:09,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:09,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-28 03:46:09,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:09,541 INFO L225 Difference]: With dead ends: 1063 [2024-11-28 03:46:09,541 INFO L226 Difference]: Without dead ends: 573 [2024-11-28 03:46:09,542 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 [2024-11-28 03:46:09,543 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:09,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 310 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:46:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-28 03:46:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 525. [2024-11-28 03:46:09,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 457 states have (on average 1.2210065645514223) internal successors, (558), 460 states have internal predecessors, (558), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 682 transitions. [2024-11-28 03:46:09,721 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 682 transitions. Word has length 139 [2024-11-28 03:46:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:09,721 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 682 transitions. [2024-11-28 03:46:09,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 682 transitions. [2024-11-28 03:46:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:09,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:09,724 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:09,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:46:09,724 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1329883700, now seen corresponding path program 1 times [2024-11-28 03:46:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184997552] [2024-11-28 03:46:09,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184997552] [2024-11-28 03:46:11,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184997552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:11,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:46:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955924124] [2024-11-28 03:46:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:11,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:46:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:11,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:46:11,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:46:11,650 INFO L87 Difference]: Start difference. First operand 525 states and 682 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:12,767 INFO L93 Difference]: Finished difference Result 1169 states and 1520 transitions. [2024-11-28 03:46:12,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:46:12,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-11-28 03:46:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:12,771 INFO L225 Difference]: With dead ends: 1169 [2024-11-28 03:46:12,772 INFO L226 Difference]: Without dead ends: 668 [2024-11-28 03:46:12,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:46:12,774 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 287 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:12,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 274 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:46:12,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-28 03:46:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 568. [2024-11-28 03:46:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 500 states have (on average 1.224) internal successors, (612), 503 states have internal predecessors, (612), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 736 transitions. [2024-11-28 03:46:12,926 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 736 transitions. Word has length 139 [2024-11-28 03:46:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:12,926 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 736 transitions. [2024-11-28 03:46:12,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 736 transitions. [2024-11-28 03:46:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:12,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:12,928 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:12,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:46:12,929 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:12,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:12,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1953966346, now seen corresponding path program 1 times [2024-11-28 03:46:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:12,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947710443] [2024-11-28 03:46:12,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:12,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:46:13,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:13,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947710443] [2024-11-28 03:46:13,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947710443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:13,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504288710] [2024-11-28 03:46:13,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:13,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:46:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:13,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:46:13,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:46:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:14,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:46:14,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:46:14,867 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 15 treesize of output 1 [2024-11-28 03:46:15,342 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 23 treesize of output 11 [2024-11-28 03:46:15,638 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 23 treesize of output 11 [2024-11-28 03:46:15,882 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 23 treesize of output 11 [2024-11-28 03:46:16,145 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 23 treesize of output 11 [2024-11-28 03:46:16,390 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 23 treesize of output 11 [2024-11-28 03:46:16,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:46:16,754 INFO L349 Elim1Store]: treesize reduction 60, result has 41.7 percent of original size [2024-11-28 03:46:16,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 62 [2024-11-28 03:46:16,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2024-11-28 03:46:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 165 proven. 195 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 03:46:16,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:46:21,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504288710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:46:21,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:46:21,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-28 03:46:21,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954811898] [2024-11-28 03:46:21,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:46:21,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:46:21,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:21,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:46:21,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=341, Unknown=1, NotChecked=0, Total=420 [2024-11-28 03:46:21,156 INFO L87 Difference]: Start difference. First operand 568 states and 736 transitions. Second operand has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-28 03:46:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:23,349 INFO L93 Difference]: Finished difference Result 916 states and 1176 transitions. [2024-11-28 03:46:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:46:23,350 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 139 [2024-11-28 03:46:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:23,352 INFO L225 Difference]: With dead ends: 916 [2024-11-28 03:46:23,352 INFO L226 Difference]: Without dead ends: 596 [2024-11-28 03:46:23,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=164, Invalid=537, Unknown=1, NotChecked=0, Total=702 [2024-11-28 03:46:23,354 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 182 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:23,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 418 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:46:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-28 03:46:23,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 573. [2024-11-28 03:46:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 500 states have (on average 1.212) internal successors, (606), 503 states have internal predecessors, (606), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:46:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 730 transitions. [2024-11-28 03:46:23,542 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 730 transitions. Word has length 139 [2024-11-28 03:46:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:23,542 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 730 transitions. [2024-11-28 03:46:23,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-28 03:46:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 730 transitions. [2024-11-28 03:46:23,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:23,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:23,544 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:23,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:46:23,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baedddec-d8d5-4298-ae83-86bbb57bc293/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:46:23,745 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:23,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash -249593030, now seen corresponding path program 1 times [2024-11-28 03:46:23,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:23,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573192740] [2024-11-28 03:46:23,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:25,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573192740] [2024-11-28 03:46:25,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573192740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:25,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:25,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:46:25,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242572084] [2024-11-28 03:46:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:25,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:46:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:25,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:46:25,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:46:25,639 INFO L87 Difference]: Start difference. First operand 573 states and 730 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:27,109 INFO L93 Difference]: Finished difference Result 1088 states and 1380 transitions. [2024-11-28 03:46:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:27,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-28 03:46:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:27,114 INFO L225 Difference]: With dead ends: 1088 [2024-11-28 03:46:27,114 INFO L226 Difference]: Without dead ends: 775 [2024-11-28 03:46:27,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:46:27,115 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 358 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:27,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 245 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:46:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-28 03:46:27,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 771. [2024-11-28 03:46:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 687 states have (on average 1.2168850072780204) internal successors, (836), 692 states have internal predecessors, (836), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 976 transitions. [2024-11-28 03:46:27,394 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 976 transitions. Word has length 139 [2024-11-28 03:46:27,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:27,395 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 976 transitions. [2024-11-28 03:46:27,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 976 transitions. [2024-11-28 03:46:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:46:27,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:27,397 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:27,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:46:27,397 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:27,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 430465340, now seen corresponding path program 1 times [2024-11-28 03:46:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:27,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899378726] [2024-11-28 03:46:27,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899378726] [2024-11-28 03:46:31,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899378726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:31,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:31,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:46:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516174572] [2024-11-28 03:46:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:31,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:46:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:31,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:46:31,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:46:31,442 INFO L87 Difference]: Start difference. First operand 771 states and 976 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:34,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:34,633 INFO L93 Difference]: Finished difference Result 1286 states and 1627 transitions. [2024-11-28 03:46:34,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:46:34,634 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-28 03:46:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:34,636 INFO L225 Difference]: With dead ends: 1286 [2024-11-28 03:46:34,637 INFO L226 Difference]: Without dead ends: 779 [2024-11-28 03:46:34,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:46:34,638 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 201 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:34,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 604 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:46:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-28 03:46:34,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 771. [2024-11-28 03:46:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 687 states have (on average 1.2168850072780204) internal successors, (836), 692 states have internal predecessors, (836), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 976 transitions. [2024-11-28 03:46:34,805 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 976 transitions. Word has length 139 [2024-11-28 03:46:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:34,806 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 976 transitions. [2024-11-28 03:46:34,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 976 transitions. [2024-11-28 03:46:34,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:46:34,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:34,809 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:34,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:46:34,809 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:34,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1326103137, now seen corresponding path program 1 times [2024-11-28 03:46:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:34,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117386470] [2024-11-28 03:46:34,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:34,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:38,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:38,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117386470] [2024-11-28 03:46:38,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117386470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:38,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:38,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:46:38,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768681907] [2024-11-28 03:46:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:38,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:46:38,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:38,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:46:38,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:46:38,313 INFO L87 Difference]: Start difference. First operand 771 states and 976 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:40,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:40,516 INFO L93 Difference]: Finished difference Result 1266 states and 1601 transitions. [2024-11-28 03:46:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:46:40,517 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2024-11-28 03:46:40,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:40,522 INFO L225 Difference]: With dead ends: 1266 [2024-11-28 03:46:40,522 INFO L226 Difference]: Without dead ends: 759 [2024-11-28 03:46:40,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:46:40,524 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 249 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:40,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 308 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:46:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-28 03:46:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 748. [2024-11-28 03:46:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 664 states have (on average 1.2123493975903614) internal successors, (805), 669 states have internal predecessors, (805), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 945 transitions. [2024-11-28 03:46:40,771 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 945 transitions. Word has length 140 [2024-11-28 03:46:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:40,771 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 945 transitions. [2024-11-28 03:46:40,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:46:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 945 transitions. [2024-11-28 03:46:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:46:40,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:40,774 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:40,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:46:40,774 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:40,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:40,775 INFO L85 PathProgramCache]: Analyzing trace with hash 629030269, now seen corresponding path program 1 times [2024-11-28 03:46:40,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:40,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046836320] [2024-11-28 03:46:40,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:40,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:41,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:41,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046836320] [2024-11-28 03:46:41,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046836320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:41,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:41,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:46:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139421273] [2024-11-28 03:46:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:41,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:46:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:41,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:46:41,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:46:41,102 INFO L87 Difference]: Start difference. First operand 748 states and 945 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:41,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:41,719 INFO L93 Difference]: Finished difference Result 1587 states and 2007 transitions. [2024-11-28 03:46:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:41,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 03:46:41,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:41,723 INFO L225 Difference]: With dead ends: 1587 [2024-11-28 03:46:41,723 INFO L226 Difference]: Without dead ends: 871 [2024-11-28 03:46:41,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:41,725 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 21 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:41,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 369 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:46:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-28 03:46:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 809. [2024-11-28 03:46:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 725 states have (on average 1.2055172413793103) internal successors, (874), 730 states have internal predecessors, (874), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1014 transitions. [2024-11-28 03:46:41,912 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1014 transitions. Word has length 141 [2024-11-28 03:46:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:41,912 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1014 transitions. [2024-11-28 03:46:41,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1014 transitions. [2024-11-28 03:46:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:46:41,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:41,914 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:41,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:46:41,915 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:41,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1279321409, now seen corresponding path program 1 times [2024-11-28 03:46:41,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:41,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407814630] [2024-11-28 03:46:41,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:41,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:43,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407814630] [2024-11-28 03:46:43,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407814630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:43,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:43,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:46:43,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924850517] [2024-11-28 03:46:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:43,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:46:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:43,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:46:43,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:46:43,728 INFO L87 Difference]: Start difference. First operand 809 states and 1014 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:45,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:45,528 INFO L93 Difference]: Finished difference Result 1548 states and 1937 transitions. [2024-11-28 03:46:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:46:45,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-28 03:46:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:45,532 INFO L225 Difference]: With dead ends: 1548 [2024-11-28 03:46:45,532 INFO L226 Difference]: Without dead ends: 771 [2024-11-28 03:46:45,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:46:45,534 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:45,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 293 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:46:45,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-28 03:46:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2024-11-28 03:46:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 683 states have (on average 1.191800878477306) internal successors, (814), 688 states have internal predecessors, (814), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 954 transitions. [2024-11-28 03:46:45,761 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 954 transitions. Word has length 141 [2024-11-28 03:46:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:45,761 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 954 transitions. [2024-11-28 03:46:45,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 954 transitions. [2024-11-28 03:46:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:46:45,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:45,763 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:45,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:46:45,763 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:45,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:45,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343512, now seen corresponding path program 1 times [2024-11-28 03:46:45,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:45,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982501635] [2024-11-28 03:46:45,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:45,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:46,697 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:46,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982501635] [2024-11-28 03:46:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982501635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:46,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:46,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:46:46,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378940282] [2024-11-28 03:46:46,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:46,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:46:46,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:46,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:46:46,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:46,699 INFO L87 Difference]: Start difference. First operand 769 states and 954 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:47,725 INFO L93 Difference]: Finished difference Result 858 states and 1062 transitions. [2024-11-28 03:46:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:46:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-28 03:46:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:47,729 INFO L225 Difference]: With dead ends: 858 [2024-11-28 03:46:47,729 INFO L226 Difference]: Without dead ends: 856 [2024-11-28 03:46:47,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:46:47,730 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:47,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 613 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:46:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-28 03:46:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 824. [2024-11-28 03:46:47,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 738 states have (on average 1.1897018970189701) internal successors, (878), 743 states have internal predecessors, (878), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1018 transitions. [2024-11-28 03:46:47,927 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1018 transitions. Word has length 141 [2024-11-28 03:46:47,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:47,927 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1018 transitions. [2024-11-28 03:46:47,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1018 transitions. [2024-11-28 03:46:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 03:46:47,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:47,929 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:47,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:46:47,929 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:47,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1315391000, now seen corresponding path program 1 times [2024-11-28 03:46:47,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:47,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530678312] [2024-11-28 03:46:47,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:48,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:48,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530678312] [2024-11-28 03:46:48,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530678312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:48,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:48,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:46:48,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831860022] [2024-11-28 03:46:48,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:48,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:46:48,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:48,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:46:48,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:46:48,409 INFO L87 Difference]: Start difference. First operand 824 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:49,345 INFO L93 Difference]: Finished difference Result 1605 states and 1987 transitions. [2024-11-28 03:46:49,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:49,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-28 03:46:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:49,350 INFO L225 Difference]: With dead ends: 1605 [2024-11-28 03:46:49,350 INFO L226 Difference]: Without dead ends: 813 [2024-11-28 03:46:49,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:49,352 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 134 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:49,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 328 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:46:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-28 03:46:49,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 781. [2024-11-28 03:46:49,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 695 states have (on average 1.1841726618705035) internal successors, (823), 700 states have internal predecessors, (823), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 963 transitions. [2024-11-28 03:46:49,568 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 963 transitions. Word has length 142 [2024-11-28 03:46:49,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:49,568 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 963 transitions. [2024-11-28 03:46:49,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:49,568 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 963 transitions. [2024-11-28 03:46:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 03:46:49,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:49,570 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:49,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:46:49,570 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:49,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:49,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2018913394, now seen corresponding path program 1 times [2024-11-28 03:46:49,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:49,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995651130] [2024-11-28 03:46:49,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:51,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:51,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995651130] [2024-11-28 03:46:51,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995651130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:51,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:51,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:46:51,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761133526] [2024-11-28 03:46:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:51,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:46:51,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:51,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:46:51,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:46:51,690 INFO L87 Difference]: Start difference. First operand 781 states and 963 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:53,230 INFO L93 Difference]: Finished difference Result 1514 states and 1864 transitions. [2024-11-28 03:46:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:46:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-28 03:46:53,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:53,234 INFO L225 Difference]: With dead ends: 1514 [2024-11-28 03:46:53,235 INFO L226 Difference]: Without dead ends: 765 [2024-11-28 03:46:53,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:46:53,236 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 173 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:53,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 267 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:46:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-28 03:46:53,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 755. [2024-11-28 03:46:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 669 states have (on average 1.1689088191330343) internal successors, (782), 674 states have internal predecessors, (782), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:46:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 922 transitions. [2024-11-28 03:46:53,397 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 922 transitions. Word has length 142 [2024-11-28 03:46:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:53,397 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 922 transitions. [2024-11-28 03:46:53,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:46:53,397 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 922 transitions. [2024-11-28 03:46:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 03:46:53,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:53,399 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:53,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:46:53,399 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:53,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:53,400 INFO L85 PathProgramCache]: Analyzing trace with hash -859846733, now seen corresponding path program 1 times [2024-11-28 03:46:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:53,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82209375] [2024-11-28 03:46:53,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:53,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:46:53,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:53,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82209375] [2024-11-28 03:46:53,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82209375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:53,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:53,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:46:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125399255] [2024-11-28 03:46:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:53,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:46:53,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:53,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:46:53,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:46:53,906 INFO L87 Difference]: Start difference. First operand 755 states and 922 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:54,697 INFO L93 Difference]: Finished difference Result 1332 states and 1632 transitions. [2024-11-28 03:46:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:54,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-28 03:46:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:54,701 INFO L225 Difference]: With dead ends: 1332 [2024-11-28 03:46:54,701 INFO L226 Difference]: Without dead ends: 579 [2024-11-28 03:46:54,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:46:54,703 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 87 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:54,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 283 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:46:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-28 03:46:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 575. [2024-11-28 03:46:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 501 states have (on average 1.1516966067864272) internal successors, (577), 505 states have internal predecessors, (577), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 03:46:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 697 transitions. [2024-11-28 03:46:54,825 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 697 transitions. Word has length 143 [2024-11-28 03:46:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:54,826 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 697 transitions. [2024-11-28 03:46:54,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:46:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 697 transitions. [2024-11-28 03:46:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:46:54,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:54,827 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:46:54,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:46:54,828 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:54,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:54,828 INFO L85 PathProgramCache]: Analyzing trace with hash 856188912, now seen corresponding path program 1 times [2024-11-28 03:46:54,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:54,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875894664] [2024-11-28 03:46:54,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:54,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat