./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_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_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:51:07,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:51:07,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:51:07,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:51:07,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:51:07,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:51:07,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:51:07,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:51:07,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:51:07,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:51:07,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:51:07,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:51:07,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:51:07,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:51:07,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:51:07,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:51:07,991 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:51:07,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:51:07,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:51:07,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:51:07,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:51:07,992 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_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 [2024-12-02 15:51:08,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:51:08,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:51:08,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:51:08,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:51:08,221 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:51:08,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-12-02 15:51:10,856 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/data/73a04d936/e1cb5d62b6334f9fb6334658bb32399f/FLAG6f68873cf [2024-12-02 15:51:11,064 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:51:11,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-12-02 15:51:11,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/data/73a04d936/e1cb5d62b6334f9fb6334658bb32399f/FLAG6f68873cf [2024-12-02 15:51:11,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/data/73a04d936/e1cb5d62b6334f9fb6334658bb32399f [2024-12-02 15:51:11,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:51:11,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:51:11,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:51:11,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:51:11,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:51:11,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d780e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11, skipping insertion in model container [2024-12-02 15:51:11,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:51:11,558 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_d1b77b4b-e8f0-4102-8c24-643278706cbd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-12-02 15:51:11,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:51:11,617 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:51:11,627 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_d1b77b4b-e8f0-4102-8c24-643278706cbd/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i[916,929] [2024-12-02 15:51:11,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:51:11,676 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:51:11,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11 WrapperNode [2024-12-02 15:51:11,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:51:11,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:51:11,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:51:11,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:51:11,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,721 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 432 [2024-12-02 15:51:11,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:51:11,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:51:11,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:51:11,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:51:11,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,749 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-12-02 15:51:11,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,764 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:51:11,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:51:11,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:51:11,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:51:11,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (1/1) ... [2024-12-02 15:51:11,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:51:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:51:11,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:51:11,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:51:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:51:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:51:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:51:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:51:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:51:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:51:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:51:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:51:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:51:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:51:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:51:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:51:11,933 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:51:11,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:51:12,294 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-12-02 15:51:12,294 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:51:12,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:51:12,305 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:51:12,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:51:12 BoogieIcfgContainer [2024-12-02 15:51:12,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:51:12,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:51:12,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:51:12,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:51:12,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:51:11" (1/3) ... [2024-12-02 15:51:12,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad5f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:51:12, skipping insertion in model container [2024-12-02 15:51:12,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:51:11" (2/3) ... [2024-12-02 15:51:12,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad5f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:51:12, skipping insertion in model container [2024-12-02 15:51:12,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:51:12" (3/3) ... [2024-12-02 15:51:12,314 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-27.i [2024-12-02 15:51:12,329 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:51:12,331 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:51:12,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:51:12,406 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;@16651a26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:51:12,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:51:12,410 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) [2024-12-02 15:51:12,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 15:51:12,420 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:12,421 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] [2024-12-02 15:51:12,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:12,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:12,427 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-12-02 15:51:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012103193] [2024-12-02 15:51:12,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 15:51:12,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:12,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012103193] [2024-12-02 15:51:12,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012103193] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:51:12,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647559985] [2024-12-02 15:51:12,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:12,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:51:12,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:51:12,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:51:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:51:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:12,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:51:12,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:51:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 15:51:12,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:51:12,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647559985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:12,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:51:12,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:51:12,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896439643] [2024-12-02 15:51:12,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:12,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:51:12,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:12,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:51:12,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:51:12,915 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) [2024-12-02 15:51:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:12,935 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-12-02 15:51:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:51:12,937 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 [2024-12-02 15:51:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:12,942 INFO L225 Difference]: With dead ends: 181 [2024-12-02 15:51:12,942 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 15:51:12,945 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 [2024-12-02 15:51:12,947 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 [2024-12-02 15:51:12,948 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] [2024-12-02 15:51:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 15:51:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-12-02 15:51:12,974 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) [2024-12-02 15:51:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-12-02 15:51:12,980 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-12-02 15:51:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:12,980 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-12-02 15:51:12,980 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) [2024-12-02 15:51:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-12-02 15:51:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 15:51:12,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:12,983 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] [2024-12-02 15:51:12,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:51:13,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:51:13,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:13,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:13,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-12-02 15:51:13,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:13,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819682692] [2024-12-02 15:51:13,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:13,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:14,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:14,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819682692] [2024-12-02 15:51:14,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819682692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:14,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:14,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:51:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919639849] [2024-12-02 15:51:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:51:14,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:14,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:51:14,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:14,886 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:15,222 INFO L93 Difference]: Finished difference Result 232 states and 332 transitions. [2024-12-02 15:51:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:51:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 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 [2024-12-02 15:51:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:15,225 INFO L225 Difference]: With dead ends: 232 [2024-12-02 15:51:15,225 INFO L226 Difference]: Without dead ends: 145 [2024-12-02 15:51:15,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:15,227 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 69 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:15,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 659 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-12-02 15:51:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-12-02 15:51:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.353448275862069) internal successors, (157), 117 states have internal predecessors, (157), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 15:51:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2024-12-02 15:51:15,244 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 131 [2024-12-02 15:51:15,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:15,245 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2024-12-02 15:51:15,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:15,245 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2024-12-02 15:51:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 15:51:15,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:15,247 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] [2024-12-02 15:51:15,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:51:15,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:15,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:15,248 INFO L85 PathProgramCache]: Analyzing trace with hash -828522667, now seen corresponding path program 1 times [2024-12-02 15:51:15,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:15,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832196261] [2024-12-02 15:51:15,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:16,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:16,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832196261] [2024-12-02 15:51:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832196261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:16,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:16,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770886187] [2024-12-02 15:51:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:16,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:16,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:16,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:16,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:16,107 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-12-02 15:51:16,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:16,472 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2024-12-02 15:51:16,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:51:16,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2024-12-02 15:51:16,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:16,477 INFO L225 Difference]: With dead ends: 362 [2024-12-02 15:51:16,477 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 15:51:16,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:16,478 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 110 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:16,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 742 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 15:51:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-12-02 15:51:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 175 states have (on average 1.3371428571428572) internal successors, (234), 176 states have internal predecessors, (234), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 314 transitions. [2024-12-02 15:51:16,506 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 314 transitions. Word has length 133 [2024-12-02 15:51:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:16,506 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 314 transitions. [2024-12-02 15:51:16,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-12-02 15:51:16,507 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 314 transitions. [2024-12-02 15:51:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 15:51:16,509 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:16,509 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] [2024-12-02 15:51:16,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:51:16,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:16,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:16,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1503590059, now seen corresponding path program 1 times [2024-12-02 15:51:16,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:16,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042870524] [2024-12-02 15:51:16,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:16,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:17,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:17,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042870524] [2024-12-02 15:51:17,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042870524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:17,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:17,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669477510] [2024-12-02 15:51:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:17,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:17,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:17,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:17,047 INFO L87 Difference]: Start difference. First operand 219 states and 314 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-12-02 15:51:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:17,370 INFO L93 Difference]: Finished difference Result 411 states and 587 transitions. [2024-12-02 15:51:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:51:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2024-12-02 15:51:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:17,373 INFO L225 Difference]: With dead ends: 411 [2024-12-02 15:51:17,373 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 15:51:17,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:17,375 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 113 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:17,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 537 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 15:51:17,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-12-02 15:51:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:51:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2024-12-02 15:51:17,392 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 133 [2024-12-02 15:51:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:17,392 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2024-12-02 15:51:17,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-12-02 15:51:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2024-12-02 15:51:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:51:17,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:17,394 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] [2024-12-02 15:51:17,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:51:17,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:17,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:17,395 INFO L85 PathProgramCache]: Analyzing trace with hash -252020168, now seen corresponding path program 1 times [2024-12-02 15:51:17,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:17,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721869487] [2024-12-02 15:51:17,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:17,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:17,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:17,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721869487] [2024-12-02 15:51:17,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721869487] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:17,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:17,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:17,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893554313] [2024-12-02 15:51:17,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:17,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:17,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:17,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:17,839 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:17,955 INFO L93 Difference]: Finished difference Result 451 states and 633 transitions. [2024-12-02 15:51:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 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 134 [2024-12-02 15:51:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:17,958 INFO L225 Difference]: With dead ends: 451 [2024-12-02 15:51:17,958 INFO L226 Difference]: Without dead ends: 279 [2024-12-02 15:51:17,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:17,959 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 76 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:17,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 690 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-12-02 15:51:17,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-12-02 15:51:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 233 states have internal predecessors, (309), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:51:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 385 transitions. [2024-12-02 15:51:17,980 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 385 transitions. Word has length 134 [2024-12-02 15:51:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:17,981 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 385 transitions. [2024-12-02 15:51:17,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 385 transitions. [2024-12-02 15:51:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:51:17,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:17,983 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] [2024-12-02 15:51:17,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:51:17,983 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:17,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-12-02 15:51:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131421027] [2024-12-02 15:51:17,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:17,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:18,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131421027] [2024-12-02 15:51:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131421027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:18,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:18,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:18,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739525943] [2024-12-02 15:51:18,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:18,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:18,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:18,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:18,419 INFO L87 Difference]: Start difference. First operand 275 states and 385 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:18,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:18,546 INFO L93 Difference]: Finished difference Result 657 states and 911 transitions. [2024-12-02 15:51:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 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 134 [2024-12-02 15:51:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:18,550 INFO L225 Difference]: With dead ends: 657 [2024-12-02 15:51:18,550 INFO L226 Difference]: Without dead ends: 385 [2024-12-02 15:51:18,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:18,551 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:18,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-12-02 15:51:18,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 215. [2024-12-02 15:51:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:51:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-12-02 15:51:18,573 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-12-02 15:51:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:18,574 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-12-02 15:51:18,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-12-02 15:51:18,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:18,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:18,576 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] [2024-12-02 15:51:18,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:51:18,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:18,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-12-02 15:51:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126058778] [2024-12-02 15:51:18,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:18,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:19,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:19,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126058778] [2024-12-02 15:51:19,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126058778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:19,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:19,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:51:19,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492507165] [2024-12-02 15:51:19,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:19,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:51:19,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:19,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:51:19,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:19,854 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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) [2024-12-02 15:51:20,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:20,340 INFO L93 Difference]: Finished difference Result 493 states and 674 transitions. [2024-12-02 15:51:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:51:20,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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 [2024-12-02 15:51:20,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:20,342 INFO L225 Difference]: With dead ends: 493 [2024-12-02 15:51:20,342 INFO L226 Difference]: Without dead ends: 281 [2024-12-02 15:51:20,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:51:20,343 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 71 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:20,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1076 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:51:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-12-02 15:51:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-12-02 15:51:20,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 230 states have (on average 1.3) internal successors, (299), 231 states have internal predecessors, (299), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 379 transitions. [2024-12-02 15:51:20,369 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 379 transitions. Word has length 135 [2024-12-02 15:51:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:20,369 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 379 transitions. [2024-12-02 15:51:20,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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) [2024-12-02 15:51:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 379 transitions. [2024-12-02 15:51:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:20,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:20,371 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] [2024-12-02 15:51:20,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:51:20,372 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:20,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-12-02 15:51:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097493485] [2024-12-02 15:51:20,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:21,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097493485] [2024-12-02 15:51:21,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097493485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:21,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:21,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:51:21,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035613850] [2024-12-02 15:51:21,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:21,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:51:21,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:21,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:51:21,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:51:21,213 INFO L87 Difference]: Start difference. First operand 278 states and 379 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:21,520 INFO L93 Difference]: Finished difference Result 556 states and 755 transitions. [2024-12-02 15:51:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:51:21,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 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 135 [2024-12-02 15:51:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:21,523 INFO L225 Difference]: With dead ends: 556 [2024-12-02 15:51:21,523 INFO L226 Difference]: Without dead ends: 281 [2024-12-02 15:51:21,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:21,525 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:21,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-12-02 15:51:21,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-12-02 15:51:21,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 377 transitions. [2024-12-02 15:51:21,547 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 377 transitions. Word has length 135 [2024-12-02 15:51:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:21,547 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 377 transitions. [2024-12-02 15:51:21,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:21,547 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 377 transitions. [2024-12-02 15:51:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:21,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:21,549 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] [2024-12-02 15:51:21,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:51:21,549 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:21,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-12-02 15:51:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:21,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370918059] [2024-12-02 15:51:21,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:21,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:22,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:22,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370918059] [2024-12-02 15:51:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370918059] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:22,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:22,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:51:22,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99576745] [2024-12-02 15:51:22,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:22,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:51:22,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:22,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:51:22,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:51:22,127 INFO L87 Difference]: Start difference. First operand 279 states and 377 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:22,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:22,372 INFO L93 Difference]: Finished difference Result 561 states and 755 transitions. [2024-12-02 15:51:22,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:51:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 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 135 [2024-12-02 15:51:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:22,374 INFO L225 Difference]: With dead ends: 561 [2024-12-02 15:51:22,375 INFO L226 Difference]: Without dead ends: 285 [2024-12-02 15:51:22,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:22,376 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:22,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 654 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:51:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-12-02 15:51:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-12-02 15:51:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 379 transitions. [2024-12-02 15:51:22,398 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 379 transitions. Word has length 135 [2024-12-02 15:51:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:22,399 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 379 transitions. [2024-12-02 15:51:22,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 379 transitions. [2024-12-02 15:51:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:22,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:22,401 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] [2024-12-02 15:51:22,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:51:22,401 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:22,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-12-02 15:51:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:22,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571640738] [2024-12-02 15:51:22,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:22,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:23,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:23,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571640738] [2024-12-02 15:51:23,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571640738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:23,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:23,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:51:23,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325686914] [2024-12-02 15:51:23,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:23,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:51:23,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:23,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:51:23,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:23,154 INFO L87 Difference]: Start difference. First operand 283 states and 379 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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) [2024-12-02 15:51:23,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:23,539 INFO L93 Difference]: Finished difference Result 583 states and 776 transitions. [2024-12-02 15:51:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:51:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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 [2024-12-02 15:51:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:23,542 INFO L225 Difference]: With dead ends: 583 [2024-12-02 15:51:23,542 INFO L226 Difference]: Without dead ends: 303 [2024-12-02 15:51:23,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:51:23,544 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 61 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:23,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1247 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-12-02 15:51:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-12-02 15:51:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 234 states have internal predecessors, (298), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2024-12-02 15:51:23,570 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 135 [2024-12-02 15:51:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:23,570 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2024-12-02 15:51:23,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 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) [2024-12-02 15:51:23,571 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2024-12-02 15:51:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:23,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:23,572 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] [2024-12-02 15:51:23,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:51:23,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:23,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-12-02 15:51:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253869741] [2024-12-02 15:51:23,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:23,881 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:23,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:23,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253869741] [2024-12-02 15:51:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253869741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:23,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804326640] [2024-12-02 15:51:23,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:23,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:23,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:23,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:23,882 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:23,989 INFO L93 Difference]: Finished difference Result 703 states and 937 transitions. [2024-12-02 15:51:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 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 135 [2024-12-02 15:51:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:23,993 INFO L225 Difference]: With dead ends: 703 [2024-12-02 15:51:23,993 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 15:51:23,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:23,995 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:23,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:23,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 15:51:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2024-12-02 15:51:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 279 states have internal predecessors, (352), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 15:51:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 432 transitions. [2024-12-02 15:51:24,021 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 432 transitions. Word has length 135 [2024-12-02 15:51:24,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:24,022 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 432 transitions. [2024-12-02 15:51:24,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 432 transitions. [2024-12-02 15:51:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:24,023 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:24,023 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] [2024-12-02 15:51:24,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:51:24,024 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:24,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-12-02 15:51:24,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:24,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766292864] [2024-12-02 15:51:24,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:24,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:24,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766292864] [2024-12-02 15:51:24,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766292864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:24,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:24,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:51:24,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504957335] [2024-12-02 15:51:24,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:24,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:51:24,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:24,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:51:24,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:24,814 INFO L87 Difference]: Start difference. First operand 328 states and 432 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:25,308 INFO L93 Difference]: Finished difference Result 863 states and 1130 transitions. [2024-12-02 15:51:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:51:25,308 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), 2 states have call successors, (17), 1 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 135 [2024-12-02 15:51:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:25,311 INFO L225 Difference]: With dead ends: 863 [2024-12-02 15:51:25,311 INFO L226 Difference]: Without dead ends: 538 [2024-12-02 15:51:25,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:51:25,312 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 70 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:25,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 883 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:51:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-12-02 15:51:25,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 534. [2024-12-02 15:51:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 453 states have (on average 1.2538631346578366) internal successors, (568), 457 states have internal predecessors, (568), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 692 transitions. [2024-12-02 15:51:25,354 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 692 transitions. Word has length 135 [2024-12-02 15:51:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:25,354 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 692 transitions. [2024-12-02 15:51:25,354 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), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 692 transitions. [2024-12-02 15:51:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 15:51:25,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:25,356 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] [2024-12-02 15:51:25,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:51:25,357 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:25,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-12-02 15:51:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:25,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144161924] [2024-12-02 15:51:25,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:25,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:25,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:25,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144161924] [2024-12-02 15:51:25,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144161924] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:25,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:25,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:51:25,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876570102] [2024-12-02 15:51:25,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:25,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:51:25,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:25,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:51:25,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:51:25,520 INFO L87 Difference]: Start difference. First operand 534 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2024-12-02 15:51:25,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:25,597 INFO L93 Difference]: Finished difference Result 1060 states and 1372 transitions. [2024-12-02 15:51:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:51:25,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 [2024-12-02 15:51:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:25,601 INFO L225 Difference]: With dead ends: 1060 [2024-12-02 15:51:25,601 INFO L226 Difference]: Without dead ends: 529 [2024-12-02 15:51:25,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:25,603 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:25,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 458 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:51:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-12-02 15:51:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2024-12-02 15:51:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 444 states have (on average 1.2454954954954955) internal successors, (553), 448 states have internal predecessors, (553), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 677 transitions. [2024-12-02 15:51:25,632 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 677 transitions. Word has length 135 [2024-12-02 15:51:25,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:25,632 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 677 transitions. [2024-12-02 15:51:25,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2024-12-02 15:51:25,632 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 677 transitions. [2024-12-02 15:51:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:25,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:25,634 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] [2024-12-02 15:51:25,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:51:25,634 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:25,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-12-02 15:51:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974439301] [2024-12-02 15:51:25,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:25,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:26,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974439301] [2024-12-02 15:51:26,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974439301] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:26,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:26,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 15:51:26,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879645151] [2024-12-02 15:51:26,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:26,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 15:51:26,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:26,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 15:51:26,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:51:26,515 INFO L87 Difference]: Start difference. First operand 525 states and 677 transitions. Second operand has 12 states, 10 states have (on average 5.7) 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), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:27,195 INFO L93 Difference]: Finished difference Result 1601 states and 2045 transitions. [2024-12-02 15:51:27,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:51:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) 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), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 15:51:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:27,200 INFO L225 Difference]: With dead ends: 1601 [2024-12-02 15:51:27,201 INFO L226 Difference]: Without dead ends: 1079 [2024-12-02 15:51:27,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:51:27,202 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 325 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:27,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 981 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:51:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-12-02 15:51:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 619. [2024-12-02 15:51:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 538 states have (on average 1.258364312267658) internal successors, (677), 542 states have internal predecessors, (677), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 801 transitions. [2024-12-02 15:51:27,258 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 801 transitions. Word has length 139 [2024-12-02 15:51:27,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:27,259 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 801 transitions. [2024-12-02 15:51:27,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) 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), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 801 transitions. [2024-12-02 15:51:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:27,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:27,261 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] [2024-12-02 15:51:27,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:51:27,262 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:27,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-12-02 15:51:27,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:27,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602884790] [2024-12-02 15:51:27,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:27,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:28,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:28,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602884790] [2024-12-02 15:51:28,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602884790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:28,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:28,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 15:51:28,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137144374] [2024-12-02 15:51:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:28,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:51:28,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:28,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:51:28,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:51:28,190 INFO L87 Difference]: Start difference. First operand 619 states and 801 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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) [2024-12-02 15:51:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:28,665 INFO L93 Difference]: Finished difference Result 1503 states and 1934 transitions. [2024-12-02 15:51:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:51:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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 [2024-12-02 15:51:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:28,670 INFO L225 Difference]: With dead ends: 1503 [2024-12-02 15:51:28,670 INFO L226 Difference]: Without dead ends: 887 [2024-12-02 15:51:28,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:51:28,672 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 66 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:28,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1145 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-12-02 15:51:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 729. [2024-12-02 15:51:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 648 states have (on average 1.2546296296296295) internal successors, (813), 652 states have internal predecessors, (813), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 937 transitions. [2024-12-02 15:51:28,723 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 937 transitions. Word has length 139 [2024-12-02 15:51:28,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:28,724 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 937 transitions. [2024-12-02 15:51:28,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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) [2024-12-02 15:51:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 937 transitions. [2024-12-02 15:51:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:28,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:28,726 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] [2024-12-02 15:51:28,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:51:28,726 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:28,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-12-02 15:51:28,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:28,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34277721] [2024-12-02 15:51:28,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:29,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34277721] [2024-12-02 15:51:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34277721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:29,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:29,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:29,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538947170] [2024-12-02 15:51:29,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:29,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:29,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:29,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:29,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:29,020 INFO L87 Difference]: Start difference. First operand 729 states and 937 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:29,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:29,171 INFO L93 Difference]: Finished difference Result 1576 states and 2029 transitions. [2024-12-02 15:51:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:29,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 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 139 [2024-12-02 15:51:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:29,176 INFO L225 Difference]: With dead ends: 1576 [2024-12-02 15:51:29,176 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 15:51:29,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:29,179 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 103 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:29,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 459 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:29,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 15:51:29,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 762. [2024-12-02 15:51:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 681 states have (on average 1.2555066079295154) internal successors, (855), 685 states have internal predecessors, (855), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 979 transitions. [2024-12-02 15:51:29,252 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 979 transitions. Word has length 139 [2024-12-02 15:51:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:29,253 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 979 transitions. [2024-12-02 15:51:29,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:29,253 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 979 transitions. [2024-12-02 15:51:29,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:29,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:29,256 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] [2024-12-02 15:51:29,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:51:29,256 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:29,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-12-02 15:51:29,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:29,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604461796] [2024-12-02 15:51:29,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:29,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:51:29,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:29,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604461796] [2024-12-02 15:51:29,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604461796] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:51:29,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878971047] [2024-12-02 15:51:29,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:29,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:51:29,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:51:29,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:51:29,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:51:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:29,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:51:29,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:51:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:29,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:51:29,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878971047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:29,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:51:29,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 15:51:29,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8539967] [2024-12-02 15:51:29,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:29,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:29,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:29,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:29,663 INFO L87 Difference]: Start difference. First operand 762 states and 979 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2024-12-02 15:51:29,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:29,718 INFO L93 Difference]: Finished difference Result 1542 states and 1982 transitions. [2024-12-02 15:51:29,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:29,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 [2024-12-02 15:51:29,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:29,722 INFO L225 Difference]: With dead ends: 1542 [2024-12-02 15:51:29,722 INFO L226 Difference]: Without dead ends: 783 [2024-12-02 15:51:29,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:29,723 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:29,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:51:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-12-02 15:51:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2024-12-02 15:51:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 690 states have (on average 1.2521739130434784) internal successors, (864), 694 states have internal predecessors, (864), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 988 transitions. [2024-12-02 15:51:29,755 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 988 transitions. Word has length 139 [2024-12-02 15:51:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 988 transitions. [2024-12-02 15:51:29,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2024-12-02 15:51:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 988 transitions. [2024-12-02 15:51:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:29,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:29,757 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] [2024-12-02 15:51:29,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:51:29,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 15:51:29,958 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:29,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash -349563115, now seen corresponding path program 1 times [2024-12-02 15:51:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836982241] [2024-12-02 15:51:29,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:30,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836982241] [2024-12-02 15:51:30,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836982241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:30,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555421061] [2024-12-02 15:51:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:30,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:30,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:30,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:30,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:30,310 INFO L87 Difference]: Start difference. First operand 771 states and 988 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2024-12-02 15:51:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:30,535 INFO L93 Difference]: Finished difference Result 1703 states and 2170 transitions. [2024-12-02 15:51:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:30,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 [2024-12-02 15:51:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:30,540 INFO L225 Difference]: With dead ends: 1703 [2024-12-02 15:51:30,540 INFO L226 Difference]: Without dead ends: 935 [2024-12-02 15:51:30,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:30,542 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:30,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 462 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:30,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-12-02 15:51:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 728. [2024-12-02 15:51:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.2457496136012365) internal successors, (806), 651 states have internal predecessors, (806), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2024-12-02 15:51:30,596 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 139 [2024-12-02 15:51:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:30,596 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2024-12-02 15:51:30,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2024-12-02 15:51:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2024-12-02 15:51:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:30,598 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:30,598 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] [2024-12-02 15:51:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 15:51:30,598 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:30,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:30,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-12-02 15:51:30,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:30,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776153437] [2024-12-02 15:51:30,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:31,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:31,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776153437] [2024-12-02 15:51:31,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776153437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:31,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:31,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 15:51:31,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082916538] [2024-12-02 15:51:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:31,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:51:31,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:31,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:51:31,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:51:31,134 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:31,788 INFO L93 Difference]: Finished difference Result 2038 states and 2582 transitions. [2024-12-02 15:51:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:51:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 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 139 [2024-12-02 15:51:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:31,794 INFO L225 Difference]: With dead ends: 2038 [2024-12-02 15:51:31,794 INFO L226 Difference]: Without dead ends: 1313 [2024-12-02 15:51:31,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:51:31,796 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 326 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:31,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1275 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:51:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-12-02 15:51:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 823. [2024-12-02 15:51:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 742 states have (on average 1.2547169811320755) internal successors, (931), 746 states have internal predecessors, (931), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1055 transitions. [2024-12-02 15:51:31,858 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1055 transitions. Word has length 139 [2024-12-02 15:51:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1055 transitions. [2024-12-02 15:51:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1055 transitions. [2024-12-02 15:51:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:31,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:31,861 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] [2024-12-02 15:51:31,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 15:51:31,861 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:31,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-12-02 15:51:31,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:31,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972256580] [2024-12-02 15:51:31,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:31,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:32,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972256580] [2024-12-02 15:51:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972256580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:32,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:32,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:51:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878332755] [2024-12-02 15:51:32,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:32,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:51:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:32,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:51:32,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:32,224 INFO L87 Difference]: Start difference. First operand 823 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:32,499 INFO L93 Difference]: Finished difference Result 1865 states and 2381 transitions. [2024-12-02 15:51:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:51:32,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 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 139 [2024-12-02 15:51:32,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:32,503 INFO L225 Difference]: With dead ends: 1865 [2024-12-02 15:51:32,503 INFO L226 Difference]: Without dead ends: 1044 [2024-12-02 15:51:32,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:51:32,505 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 59 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:32,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 768 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:51:32,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-12-02 15:51:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 910. [2024-12-02 15:51:32,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 829 states have (on average 1.253317249698432) internal successors, (1039), 833 states have internal predecessors, (1039), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1163 transitions. [2024-12-02 15:51:32,566 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1163 transitions. Word has length 139 [2024-12-02 15:51:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:32,566 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1163 transitions. [2024-12-02 15:51:32,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1163 transitions. [2024-12-02 15:51:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:32,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:32,568 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] [2024-12-02 15:51:32,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 15:51:32,569 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:32,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-12-02 15:51:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64647652] [2024-12-02 15:51:32,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:32,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:51:32,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64647652] [2024-12-02 15:51:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64647652] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:51:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457922216] [2024-12-02 15:51:32,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:32,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:51:32,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:51:32,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:51:32,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:51:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:33,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:51:33,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:51:33,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 15:51:33,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 15:51:33,205 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 19 treesize of output 7 [2024-12-02 15:51:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-12-02 15:51:33,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:51:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:51:33,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457922216] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:51:33,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:51:33,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-12-02 15:51:33,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298047923] [2024-12-02 15:51:33,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:51:33,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:51:33,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:33,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:51:33,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:51:33,405 INFO L87 Difference]: Start difference. First operand 910 states and 1163 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-12-02 15:51:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:33,697 INFO L93 Difference]: Finished difference Result 1669 states and 2117 transitions. [2024-12-02 15:51:33,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:51:33,698 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) Word has length 139 [2024-12-02 15:51:33,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:33,701 INFO L225 Difference]: With dead ends: 1669 [2024-12-02 15:51:33,701 INFO L226 Difference]: Without dead ends: 762 [2024-12-02 15:51:33,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:51:33,703 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:33,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:51:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-12-02 15:51:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 734. [2024-12-02 15:51:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.234206471494607) internal successors, (801), 653 states have internal predecessors, (801), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 925 transitions. [2024-12-02 15:51:33,767 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 925 transitions. Word has length 139 [2024-12-02 15:51:33,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:33,767 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 925 transitions. [2024-12-02 15:51:33,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-12-02 15:51:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 925 transitions. [2024-12-02 15:51:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:33,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:33,769 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] [2024-12-02 15:51:33,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:51:33,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b77b4b-e8f0-4102-8c24-643278706cbd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 15:51:33,969 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:33,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-12-02 15:51:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:33,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521952788] [2024-12-02 15:51:33,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:33,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:36,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:36,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521952788] [2024-12-02 15:51:36,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521952788] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:36,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 15:51:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454657813] [2024-12-02 15:51:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:36,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 15:51:36,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:36,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 15:51:36,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:51:36,209 INFO L87 Difference]: Start difference. First operand 734 states and 925 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 15:51:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:39,017 INFO L93 Difference]: Finished difference Result 1859 states and 2329 transitions. [2024-12-02 15:51:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 15:51:39,018 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 139 [2024-12-02 15:51:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:39,021 INFO L225 Difference]: With dead ends: 1859 [2024-12-02 15:51:39,021 INFO L226 Difference]: Without dead ends: 1128 [2024-12-02 15:51:39,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 15:51:39,023 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 969 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:39,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 867 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 15:51:39,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-12-02 15:51:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 817. [2024-12-02 15:51:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 720 states have (on average 1.2319444444444445) internal successors, (887), 726 states have internal predecessors, (887), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 15:51:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1027 transitions. [2024-12-02 15:51:39,080 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1027 transitions. Word has length 139 [2024-12-02 15:51:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:39,080 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1027 transitions. [2024-12-02 15:51:39,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 15:51:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1027 transitions. [2024-12-02 15:51:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:39,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:39,081 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] [2024-12-02 15:51:39,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 15:51:39,082 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:39,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash 82304827, now seen corresponding path program 1 times [2024-12-02 15:51:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:39,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829267960] [2024-12-02 15:51:39,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:39,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:39,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829267960] [2024-12-02 15:51:39,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829267960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:39,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:39,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:51:39,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377841615] [2024-12-02 15:51:39,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:39,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:51:39,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:39,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:51:39,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:51:39,800 INFO L87 Difference]: Start difference. First operand 817 states and 1027 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:40,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:40,474 INFO L93 Difference]: Finished difference Result 1887 states and 2361 transitions. [2024-12-02 15:51:40,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:51:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-12-02 15:51:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:40,478 INFO L225 Difference]: With dead ends: 1887 [2024-12-02 15:51:40,478 INFO L226 Difference]: Without dead ends: 1073 [2024-12-02 15:51:40,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:51:40,479 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 351 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:40,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 489 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:51:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-12-02 15:51:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 816. [2024-12-02 15:51:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 719 states have (on average 1.2308762169680112) internal successors, (885), 725 states have internal predecessors, (885), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 15:51:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2024-12-02 15:51:40,551 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 139 [2024-12-02 15:51:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:40,551 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2024-12-02 15:51:40,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2024-12-02 15:51:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:51:40,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:40,552 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] [2024-12-02 15:51:40,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 15:51:40,552 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:40,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-12-02 15:51:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244891513] [2024-12-02 15:51:40,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:40,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:40,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:40,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244891513] [2024-12-02 15:51:40,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244891513] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:40,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:40,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:51:40,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381483833] [2024-12-02 15:51:40,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:40,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:51:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:40,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:51:40,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:40,758 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-12-02 15:51:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:41,000 INFO L93 Difference]: Finished difference Result 1798 states and 2254 transitions. [2024-12-02 15:51:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:51:41,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2024-12-02 15:51:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:41,003 INFO L225 Difference]: With dead ends: 1798 [2024-12-02 15:51:41,003 INFO L226 Difference]: Without dead ends: 985 [2024-12-02 15:51:41,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:51:41,004 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:41,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 847 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:41,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-12-02 15:51:41,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 856. [2024-12-02 15:51:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 759 states have (on average 1.2371541501976284) internal successors, (939), 765 states have internal predecessors, (939), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 15:51:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1079 transitions. [2024-12-02 15:51:41,069 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1079 transitions. Word has length 139 [2024-12-02 15:51:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:41,069 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1079 transitions. [2024-12-02 15:51:41,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-12-02 15:51:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1079 transitions. [2024-12-02 15:51:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:51:41,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:41,071 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] [2024-12-02 15:51:41,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 15:51:41,071 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:41,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:41,072 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-12-02 15:51:41,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:41,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667553329] [2024-12-02 15:51:41,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:41,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:41,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:41,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667553329] [2024-12-02 15:51:41,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667553329] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:41,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:41,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:41,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931656013] [2024-12-02 15:51:41,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:41,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:41,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:41,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:41,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:41,801 INFO L87 Difference]: Start difference. First operand 856 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:42,242 INFO L93 Difference]: Finished difference Result 1772 states and 2225 transitions. [2024-12-02 15:51:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:42,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-12-02 15:51:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:42,246 INFO L225 Difference]: With dead ends: 1772 [2024-12-02 15:51:42,246 INFO L226 Difference]: Without dead ends: 919 [2024-12-02 15:51:42,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:42,248 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:42,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 305 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:51:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-12-02 15:51:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 787. [2024-12-02 15:51:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 704 states have internal predecessors, (862), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 15:51:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 986 transitions. [2024-12-02 15:51:42,324 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 986 transitions. Word has length 140 [2024-12-02 15:51:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:42,325 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 986 transitions. [2024-12-02 15:51:42,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 986 transitions. [2024-12-02 15:51:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 15:51:42,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:42,327 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:51:42,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 15:51:42,327 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:42,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-12-02 15:51:42,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:42,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083952931] [2024-12-02 15:51:42,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:42,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083952931] [2024-12-02 15:51:42,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083952931] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:42,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:42,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:51:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768962937] [2024-12-02 15:51:42,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:42,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:51:42,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:42,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:51:42,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:51:42,714 INFO L87 Difference]: Start difference. First operand 787 states and 986 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:42,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:42,958 INFO L93 Difference]: Finished difference Result 1263 states and 1541 transitions. [2024-12-02 15:51:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:51:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 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 141 [2024-12-02 15:51:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:42,962 INFO L225 Difference]: With dead ends: 1263 [2024-12-02 15:51:42,962 INFO L226 Difference]: Without dead ends: 1261 [2024-12-02 15:51:42,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:51:42,963 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:42,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1025 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-12-02 15:51:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2024-12-02 15:51:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1094 states have (on average 1.1910420475319927) internal successors, (1303), 1104 states have internal predecessors, (1303), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 15:51:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1531 transitions. [2024-12-02 15:51:43,066 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1531 transitions. Word has length 141 [2024-12-02 15:51:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:43,067 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1531 transitions. [2024-12-02 15:51:43,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1531 transitions. [2024-12-02 15:51:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 15:51:43,069 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:43,069 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] [2024-12-02 15:51:43,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 15:51:43,069 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:43,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-12-02 15:51:43,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:43,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54286917] [2024-12-02 15:51:43,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:43,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:43,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54286917] [2024-12-02 15:51:43,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54286917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:43,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954308601] [2024-12-02 15:51:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:43,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:43,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:43,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:43,278 INFO L87 Difference]: Start difference. First operand 1257 states and 1531 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:43,478 INFO L93 Difference]: Finished difference Result 2767 states and 3367 transitions. [2024-12-02 15:51:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 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 141 [2024-12-02 15:51:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:43,483 INFO L225 Difference]: With dead ends: 2767 [2024-12-02 15:51:43,483 INFO L226 Difference]: Without dead ends: 1513 [2024-12-02 15:51:43,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:43,485 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:43,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 704 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-12-02 15:51:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1403. [2024-12-02 15:51:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1240 states have (on average 1.1870967741935483) internal successors, (1472), 1250 states have internal predecessors, (1472), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 15:51:43,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1700 transitions. [2024-12-02 15:51:43,652 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1700 transitions. Word has length 141 [2024-12-02 15:51:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:43,653 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1700 transitions. [2024-12-02 15:51:43,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1700 transitions. [2024-12-02 15:51:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 15:51:43,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:43,654 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] [2024-12-02 15:51:43,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 15:51:43,655 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:43,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-12-02 15:51:43,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:43,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115350493] [2024-12-02 15:51:43,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:43,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:44,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:44,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115350493] [2024-12-02 15:51:44,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115350493] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:44,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:44,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:44,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824403293] [2024-12-02 15:51:44,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:44,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:44,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:44,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:44,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:44,161 INFO L87 Difference]: Start difference. First operand 1403 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2024-12-02 15:51:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:44,736 INFO L93 Difference]: Finished difference Result 2996 states and 3604 transitions. [2024-12-02 15:51:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:44,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 [2024-12-02 15:51:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:44,740 INFO L225 Difference]: With dead ends: 2996 [2024-12-02 15:51:44,741 INFO L226 Difference]: Without dead ends: 1596 [2024-12-02 15:51:44,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:44,742 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 48 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:44,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 473 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:51:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-12-02 15:51:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1322. [2024-12-02 15:51:44,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1159 states have (on average 1.1544434857635892) internal successors, (1338), 1169 states have internal predecessors, (1338), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 15:51:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1566 transitions. [2024-12-02 15:51:44,858 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1566 transitions. Word has length 142 [2024-12-02 15:51:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:44,858 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1566 transitions. [2024-12-02 15:51:44,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2024-12-02 15:51:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1566 transitions. [2024-12-02 15:51:44,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 15:51:44,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:44,859 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] [2024-12-02 15:51:44,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 15:51:44,860 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:44,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:44,860 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-12-02 15:51:44,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:44,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876774689] [2024-12-02 15:51:44,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:44,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:45,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:45,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876774689] [2024-12-02 15:51:45,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876774689] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:45,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:45,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:45,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547716823] [2024-12-02 15:51:45,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:45,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:45,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:45,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:45,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:45,060 INFO L87 Difference]: Start difference. First operand 1322 states and 1566 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:45,207 INFO L93 Difference]: Finished difference Result 2304 states and 2745 transitions. [2024-12-02 15:51:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 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 142 [2024-12-02 15:51:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:45,211 INFO L225 Difference]: With dead ends: 2304 [2024-12-02 15:51:45,212 INFO L226 Difference]: Without dead ends: 941 [2024-12-02 15:51:45,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:45,214 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:45,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:51:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-12-02 15:51:45,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-12-02 15:51:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 796 states have (on average 1.1457286432160805) internal successors, (912), 804 states have internal predecessors, (912), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 15:51:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1112 transitions. [2024-12-02 15:51:45,336 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1112 transitions. Word has length 142 [2024-12-02 15:51:45,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:45,336 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1112 transitions. [2024-12-02 15:51:45,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1112 transitions. [2024-12-02 15:51:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:51:45,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:45,337 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] [2024-12-02 15:51:45,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 15:51:45,337 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:45,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-12-02 15:51:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615577550] [2024-12-02 15:51:45,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:45,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:45,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615577550] [2024-12-02 15:51:45,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615577550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:45,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:45,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:45,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095326618] [2024-12-02 15:51:45,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:45,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:45,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:45,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:45,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:45,597 INFO L87 Difference]: Start difference. First operand 939 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:45,796 INFO L93 Difference]: Finished difference Result 1773 states and 2095 transitions. [2024-12-02 15:51:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 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 143 [2024-12-02 15:51:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:45,800 INFO L225 Difference]: With dead ends: 1773 [2024-12-02 15:51:45,800 INFO L226 Difference]: Without dead ends: 870 [2024-12-02 15:51:45,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:45,802 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 65 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:45,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 680 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:45,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-12-02 15:51:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-12-02 15:51:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 721 states have (on average 1.130374479889043) internal successors, (815), 729 states have internal predecessors, (815), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 15:51:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1015 transitions. [2024-12-02 15:51:45,946 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1015 transitions. Word has length 143 [2024-12-02 15:51:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:45,947 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1015 transitions. [2024-12-02 15:51:45,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1015 transitions. [2024-12-02 15:51:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:51:45,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:45,948 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] [2024-12-02 15:51:45,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 15:51:45,948 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:45,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:45,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-12-02 15:51:45,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:45,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440460812] [2024-12-02 15:51:45,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:45,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:46,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:46,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440460812] [2024-12-02 15:51:46,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440460812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:46,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:46,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:51:46,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160291357] [2024-12-02 15:51:46,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:46,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:51:46,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:46,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:51:46,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:46,183 INFO L87 Difference]: Start difference. First operand 864 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:46,347 INFO L93 Difference]: Finished difference Result 1650 states and 1930 transitions. [2024-12-02 15:51:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:51:46,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 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 144 [2024-12-02 15:51:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:46,350 INFO L225 Difference]: With dead ends: 1650 [2024-12-02 15:51:46,350 INFO L226 Difference]: Without dead ends: 822 [2024-12-02 15:51:46,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:51:46,351 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:46,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 444 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-12-02 15:51:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-12-02 15:51:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 679 states have (on average 1.1030927835051547) internal successors, (749), 687 states have internal predecessors, (749), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 15:51:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 949 transitions. [2024-12-02 15:51:46,444 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 949 transitions. Word has length 144 [2024-12-02 15:51:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:46,444 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 949 transitions. [2024-12-02 15:51:46,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:51:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 949 transitions. [2024-12-02 15:51:46,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:51:46,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:46,445 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] [2024-12-02 15:51:46,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 15:51:46,446 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:46,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:46,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-12-02 15:51:46,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:46,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449003196] [2024-12-02 15:51:46,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:46,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:47,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:47,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449003196] [2024-12-02 15:51:47,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449003196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:47,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:47,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:51:47,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572900982] [2024-12-02 15:51:47,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:47,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:51:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:47,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:51:47,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:47,193 INFO L87 Difference]: Start difference. First operand 822 states and 949 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:47,518 INFO L93 Difference]: Finished difference Result 1067 states and 1233 transitions. [2024-12-02 15:51:47,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:51:47,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-12-02 15:51:47,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:47,521 INFO L225 Difference]: With dead ends: 1067 [2024-12-02 15:51:47,521 INFO L226 Difference]: Without dead ends: 1065 [2024-12-02 15:51:47,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:51:47,522 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:47,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1420 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-12-02 15:51:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1061. [2024-12-02 15:51:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 874 states have (on average 1.105263157894737) internal successors, (966), 885 states have internal predecessors, (966), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-12-02 15:51:47,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1226 transitions. [2024-12-02 15:51:47,665 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1226 transitions. Word has length 144 [2024-12-02 15:51:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:47,666 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1226 transitions. [2024-12-02 15:51:47,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1226 transitions. [2024-12-02 15:51:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:51:47,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:47,667 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] [2024-12-02 15:51:47,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 15:51:47,667 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:47,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-12-02 15:51:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:47,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301899300] [2024-12-02 15:51:47,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:49,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:49,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301899300] [2024-12-02 15:51:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301899300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:49,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:49,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 15:51:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493601090] [2024-12-02 15:51:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:49,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:51:49,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:49,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:51:49,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:51:49,719 INFO L87 Difference]: Start difference. First operand 1061 states and 1226 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:54,185 INFO L93 Difference]: Finished difference Result 2327 states and 2692 transitions. [2024-12-02 15:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:51:54,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-12-02 15:51:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:54,189 INFO L225 Difference]: With dead ends: 2327 [2024-12-02 15:51:54,189 INFO L226 Difference]: Without dead ends: 1302 [2024-12-02 15:51:54,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:51:54,190 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 182 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:54,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1169 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 15:51:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-12-02 15:51:54,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1149. [2024-12-02 15:51:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 962 states have (on average 1.1143451143451144) internal successors, (1072), 973 states have internal predecessors, (1072), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-12-02 15:51:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1332 transitions. [2024-12-02 15:51:54,321 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1332 transitions. Word has length 144 [2024-12-02 15:51:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:54,321 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1332 transitions. [2024-12-02 15:51:54,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:51:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1332 transitions. [2024-12-02 15:51:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:51:54,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:54,322 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] [2024-12-02 15:51:54,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 15:51:54,322 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:54,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:54,323 INFO L85 PathProgramCache]: Analyzing trace with hash -61368391, now seen corresponding path program 1 times [2024-12-02 15:51:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:54,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44439931] [2024-12-02 15:51:54,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:54,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:51:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:51:54,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:54,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44439931] [2024-12-02 15:51:54,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44439931] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:54,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:54,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:51:54,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439116107] [2024-12-02 15:51:54,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:54,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:51:54,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:54,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:51:54,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:51:54,482 INFO L87 Difference]: Start difference. First operand 1149 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-12-02 15:51:54,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:51:54,872 INFO L93 Difference]: Finished difference Result 2880 states and 3301 transitions. [2024-12-02 15:51:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:51:54,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 144 [2024-12-02 15:51:54,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:51:54,879 INFO L225 Difference]: With dead ends: 2880 [2024-12-02 15:51:54,879 INFO L226 Difference]: Without dead ends: 1767 [2024-12-02 15:51:54,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:51:54,881 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:51:54,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 369 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:51:54,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-12-02 15:51:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1227. [2024-12-02 15:51:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1040 states have (on average 1.1134615384615385) internal successors, (1158), 1051 states have internal predecessors, (1158), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-12-02 15:51:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1418 transitions. [2024-12-02 15:51:55,039 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1418 transitions. Word has length 144 [2024-12-02 15:51:55,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:51:55,039 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1418 transitions. [2024-12-02 15:51:55,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-12-02 15:51:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1418 transitions. [2024-12-02 15:51:55,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:51:55,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:51:55,041 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] [2024-12-02 15:51:55,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 15:51:55,041 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:51:55,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash -886480517, now seen corresponding path program 1 times [2024-12-02 15:51:55,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:55,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197623513] [2024-12-02 15:51:55,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:51:55,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:52:00,235 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete