./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.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_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:27:29,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:27:29,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:27:29,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:27:29,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:27:29,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:27:29,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:27:29,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:27:29,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:27:29,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:27:29,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:27:29,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:27:29,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:27:29,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:27:29,744 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:27:29,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:27:29,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:27:29,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:27:29,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:29,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:27:29,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:29,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:27:29,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:27:29,748 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_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df [2024-11-27 23:27:30,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:27:30,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:27:30,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:27:30,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:27:30,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:27:30,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-27 23:27:33,001 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/data/83e00d4d9/31fe5b9cd3f64e9a8ef7a18b0e873fac/FLAG9ce612bd0 [2024-11-27 23:27:33,299 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:27:33,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-27 23:27:33,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/data/83e00d4d9/31fe5b9cd3f64e9a8ef7a18b0e873fac/FLAG9ce612bd0 [2024-11-27 23:27:33,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/data/83e00d4d9/31fe5b9cd3f64e9a8ef7a18b0e873fac [2024-11-27 23:27:33,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:27:33,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:27:33,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:33,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:27:33,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:27:33,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199936d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33, skipping insertion in model container [2024-11-27 23:27:33,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:27:33,544 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_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i[916,929] [2024-11-27 23:27:33,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:33,652 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:27:33,662 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_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i[916,929] [2024-11-27 23:27:33,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:27:33,720 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:27:33,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33 WrapperNode [2024-11-27 23:27:33,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:27:33,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:33,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:27:33,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:27:33,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,802 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 494 [2024-11-27 23:27:33,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:27:33,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:27:33,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:27:33,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:27:33,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,865 INFO L175 MemorySlicer]: Split 138 memory accesses to 6 slices as follows [2, 20, 16, 85, 7, 8]. 62 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 3, 3, 5, 1, 2]. The 18 writes are split as follows [0, 3, 3, 8, 1, 3]. [2024-11-27 23:27:33,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,889 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:27:33,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:27:33,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:27:33,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:27:33,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (1/1) ... [2024-11-27 23:27:33,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:27:33,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:33,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:27:33,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:27:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:27:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:27:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:27:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:27:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:27:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:27:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:27:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:27:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:27:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:27:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:27:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:27:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:27:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:27:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:27:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:27:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:27:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:27:34,149 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:27:34,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:27:34,844 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-27 23:27:34,844 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:27:34,858 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:27:34,858 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:27:34,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:27:34 BoogieIcfgContainer [2024-11-27 23:27:34,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:27:34,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:27:34,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:27:34,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:27:34,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:27:33" (1/3) ... [2024-11-27 23:27:34,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d2d00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:27:34, skipping insertion in model container [2024-11-27 23:27:34,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:27:33" (2/3) ... [2024-11-27 23:27:34,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d2d00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:27:34, skipping insertion in model container [2024-11-27 23:27:34,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:27:34" (3/3) ... [2024-11-27 23:27:34,874 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-71.i [2024-11-27 23:27:34,891 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:27:34,892 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-71.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:27:34,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:27:34,981 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;@5ead4fdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:27:34,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:27:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:35,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:27:35,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:35,006 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:35,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:35,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 634959908, now seen corresponding path program 1 times [2024-11-27 23:27:35,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:35,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14918555] [2024-11-27 23:27:35,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:35,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-27 23:27:35,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:35,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14918555] [2024-11-27 23:27:35,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14918555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:35,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665511907] [2024-11-27 23:27:35,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:35,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:35,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:35,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:35,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:27:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:35,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:27:35,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-27 23:27:35,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:27:35,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665511907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:35,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:27:35,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:27:35,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784959638] [2024-11-27 23:27:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:35,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:27:35,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:35,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:27:35,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:27:35,817 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:35,856 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-27 23:27:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:27:35,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-27 23:27:35,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:35,865 INFO L225 Difference]: With dead ends: 203 [2024-11-27 23:27:35,866 INFO L226 Difference]: Without dead ends: 101 [2024-11-27 23:27:35,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:27:35,873 INFO L435 NwaCegarLoop]: 144 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, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:35,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:27:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-27 23:27:35,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-27 23:27:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-27 23:27:35,918 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-27 23:27:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:35,920 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-27 23:27:35,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-27 23:27:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:27:35,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:35,926 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:35,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:27:36,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:27:36,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:36,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:36,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1640475338, now seen corresponding path program 1 times [2024-11-27 23:27:36,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:36,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386105506] [2024-11-27 23:27:36,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:36,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:36,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:36,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386105506] [2024-11-27 23:27:36,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386105506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:36,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:36,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:27:36,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42570855] [2024-11-27 23:27:36,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:36,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:27:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:36,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:27:36,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:27:36,633 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:36,697 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-27 23:27:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:27:36,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-27 23:27:36,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:36,700 INFO L225 Difference]: With dead ends: 202 [2024-11-27 23:27:36,700 INFO L226 Difference]: Without dead ends: 104 [2024-11-27 23:27:36,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:27:36,701 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:36,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:27:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-27 23:27:36,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-27 23:27:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:36,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-27 23:27:36,714 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-27 23:27:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:36,716 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-27 23:27:36,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:36,716 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-27 23:27:36,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:27:36,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:36,719 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:36,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:27:36,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:36,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -879484596, now seen corresponding path program 1 times [2024-11-27 23:27:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968118687] [2024-11-27 23:27:36,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:37,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:37,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968118687] [2024-11-27 23:27:37,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968118687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:37,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:37,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:27:37,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977680394] [2024-11-27 23:27:37,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:37,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:27:37,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:37,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:27:37,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:27:37,042 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:37,091 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-27 23:27:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:27:37,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-27 23:27:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:37,096 INFO L225 Difference]: With dead ends: 206 [2024-11-27 23:27:37,096 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 23:27:37,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:27:37,097 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:37,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:27:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 23:27:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-27 23:27:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-27 23:27:37,122 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-27 23:27:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:37,123 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-27 23:27:37,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-27 23:27:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:27:37,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:37,131 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:37,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:27:37,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:37,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:37,132 INFO L85 PathProgramCache]: Analyzing trace with hash -877637554, now seen corresponding path program 1 times [2024-11-27 23:27:37,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:37,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41608982] [2024-11-27 23:27:37,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:37,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:37,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41608982] [2024-11-27 23:27:37,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41608982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:37,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:37,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:27:37,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554158569] [2024-11-27 23:27:37,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:37,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:27:37,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:37,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:27:37,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:27:37,568 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:37,682 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2024-11-27 23:27:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:27:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-27 23:27:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:37,685 INFO L225 Difference]: With dead ends: 266 [2024-11-27 23:27:37,685 INFO L226 Difference]: Without dead ends: 164 [2024-11-27 23:27:37,686 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 [2024-11-27 23:27:37,687 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 87 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:37,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 709 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:37,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-27 23:27:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 107. [2024-11-27 23:27:37,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.302325581395349) internal successors, (112), 86 states have internal predecessors, (112), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2024-11-27 23:27:37,697 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 144 [2024-11-27 23:27:37,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2024-11-27 23:27:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2024-11-27 23:27:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:27:37,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:37,700 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:37,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:27:37,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:37,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash -694713373, now seen corresponding path program 1 times [2024-11-27 23:27:37,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915574572] [2024-11-27 23:27:37,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:38,420 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:38,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:38,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915574572] [2024-11-27 23:27:38,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915574572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:38,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:38,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:27:38,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208841089] [2024-11-27 23:27:38,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:38,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:27:38,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:38,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:27:38,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:27:38,423 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:38,578 INFO L93 Difference]: Finished difference Result 272 states and 384 transitions. [2024-11-27 23:27:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:27:38,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-11-27 23:27:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:38,581 INFO L225 Difference]: With dead ends: 272 [2024-11-27 23:27:38,581 INFO L226 Difference]: Without dead ends: 168 [2024-11-27 23:27:38,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:27:38,582 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 135 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:38,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 628 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-27 23:27:38,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 115. [2024-11-27 23:27:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 94 states have internal predecessors, (125), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 23:27:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-27 23:27:38,600 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 145 [2024-11-27 23:27:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:38,601 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-27 23:27:38,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-27 23:27:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-27 23:27:38,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:38,603 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:27:38,603 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:38,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash 982540647, now seen corresponding path program 1 times [2024-11-27 23:27:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080899181] [2024-11-27 23:27:38,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:38,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:40,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:40,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080899181] [2024-11-27 23:27:40,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080899181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:40,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:40,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:27:40,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549171454] [2024-11-27 23:27:40,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:40,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:40,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:40,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:27:40,656 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:41,220 INFO L93 Difference]: Finished difference Result 309 states and 436 transitions. [2024-11-27 23:27:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:27:41,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-27 23:27:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:41,223 INFO L225 Difference]: With dead ends: 309 [2024-11-27 23:27:41,223 INFO L226 Difference]: Without dead ends: 197 [2024-11-27 23:27:41,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:41,224 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 169 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:41,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1028 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:27:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-27 23:27:41,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-27 23:27:41,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 160 states have internal predecessors, (209), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:27:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 273 transitions. [2024-11-27 23:27:41,245 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 273 transitions. Word has length 146 [2024-11-27 23:27:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:41,246 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 273 transitions. [2024-11-27 23:27:41,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 273 transitions. [2024-11-27 23:27:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-27 23:27:41,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:41,248 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:41,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:27:41,248 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:41,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash -269161938, now seen corresponding path program 1 times [2024-11-27 23:27:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:41,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731710086] [2024-11-27 23:27:41,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:41,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:41,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:41,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731710086] [2024-11-27 23:27:41,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731710086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:41,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:41,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:27:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037562948] [2024-11-27 23:27:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:41,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:27:41,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:41,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:27:41,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:27:41,826 INFO L87 Difference]: Start difference. First operand 194 states and 273 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:41,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:41,978 INFO L93 Difference]: Finished difference Result 447 states and 625 transitions. [2024-11-27 23:27:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:27:41,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-27 23:27:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:41,981 INFO L225 Difference]: With dead ends: 447 [2024-11-27 23:27:41,981 INFO L226 Difference]: Without dead ends: 256 [2024-11-27 23:27:41,982 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 [2024-11-27 23:27:41,983 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 66 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:41,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 621 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:41,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-27 23:27:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2024-11-27 23:27:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 214 states have internal predecessors, (278), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:27:42,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 350 transitions. [2024-11-27 23:27:42,007 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 350 transitions. Word has length 146 [2024-11-27 23:27:42,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:42,007 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 350 transitions. [2024-11-27 23:27:42,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 350 transitions. [2024-11-27 23:27:42,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:42,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:42,010 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:42,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:27:42,010 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:42,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1431681951, now seen corresponding path program 1 times [2024-11-27 23:27:42,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:42,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638070977] [2024-11-27 23:27:42,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:42,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:43,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638070977] [2024-11-27 23:27:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638070977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:43,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:43,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:27:43,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978869707] [2024-11-27 23:27:43,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:43,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:27:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:43,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:27:43,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:43,784 INFO L87 Difference]: Start difference. First operand 253 states and 350 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:27:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:44,964 INFO L93 Difference]: Finished difference Result 665 states and 914 transitions. [2024-11-27 23:27:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:27:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-27 23:27:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:44,968 INFO L225 Difference]: With dead ends: 665 [2024-11-27 23:27:44,970 INFO L226 Difference]: Without dead ends: 415 [2024-11-27 23:27:44,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:27:44,971 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 194 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:44,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 866 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:27:44,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-27 23:27:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 274. [2024-11-27 23:27:45,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 233 states have (on average 1.3261802575107295) internal successors, (309), 235 states have internal predecessors, (309), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:27:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-27 23:27:45,012 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 147 [2024-11-27 23:27:45,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:45,013 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-27 23:27:45,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:27:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-27 23:27:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:45,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:45,018 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:45,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:27:45,019 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:45,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1583421667, now seen corresponding path program 1 times [2024-11-27 23:27:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:45,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823088107] [2024-11-27 23:27:45,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:46,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:46,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823088107] [2024-11-27 23:27:46,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823088107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:46,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:46,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:27:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601295470] [2024-11-27 23:27:46,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:46,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:27:46,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:46,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:27:46,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:27:46,011 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:46,490 INFO L93 Difference]: Finished difference Result 621 states and 856 transitions. [2024-11-27 23:27:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:27:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2024-11-27 23:27:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:46,494 INFO L225 Difference]: With dead ends: 621 [2024-11-27 23:27:46,498 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 23:27:46,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:27:46,500 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 93 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:46,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1122 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:27:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 23:27:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2024-11-27 23:27:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 288 states have (on average 1.2951388888888888) internal successors, (373), 291 states have internal predecessors, (373), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:27:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 475 transitions. [2024-11-27 23:27:46,557 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 475 transitions. Word has length 147 [2024-11-27 23:27:46,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:46,557 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 475 transitions. [2024-11-27 23:27:46,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 475 transitions. [2024-11-27 23:27:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:46,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:46,560 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:46,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:27:46,560 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:46,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash 679019452, now seen corresponding path program 1 times [2024-11-27 23:27:46,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:46,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198262948] [2024-11-27 23:27:46,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:47,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:47,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198262948] [2024-11-27 23:27:47,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198262948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:47,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:47,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:27:47,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214985211] [2024-11-27 23:27:47,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:47,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:47,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:47,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:47,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:27:47,008 INFO L87 Difference]: Start difference. First operand 347 states and 475 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:47,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:47,278 INFO L93 Difference]: Finished difference Result 781 states and 1053 transitions. [2024-11-27 23:27:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:27:47,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-27 23:27:47,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:47,284 INFO L225 Difference]: With dead ends: 781 [2024-11-27 23:27:47,285 INFO L226 Difference]: Without dead ends: 437 [2024-11-27 23:27:47,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:47,286 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 182 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:47,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 841 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:27:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-27 23:27:47,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 427. [2024-11-27 23:27:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 359 states have (on average 1.2729805013927578) internal successors, (457), 365 states have internal predecessors, (457), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 23:27:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 571 transitions. [2024-11-27 23:27:47,352 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 571 transitions. Word has length 147 [2024-11-27 23:27:47,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:47,353 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 571 transitions. [2024-11-27 23:27:47,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 571 transitions. [2024-11-27 23:27:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:47,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:47,355 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:47,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:27:47,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:47,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1572230561, now seen corresponding path program 1 times [2024-11-27 23:27:47,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:47,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261210488] [2024-11-27 23:27:47,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:47,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:47,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:47,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261210488] [2024-11-27 23:27:47,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261210488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:47,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:47,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:27:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350284746] [2024-11-27 23:27:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:47,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:27:47,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:47,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:27:47,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:27:47,741 INFO L87 Difference]: Start difference. First operand 427 states and 571 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:48,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:48,109 INFO L93 Difference]: Finished difference Result 897 states and 1205 transitions. [2024-11-27 23:27:48,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:27:48,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-27 23:27:48,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:48,112 INFO L225 Difference]: With dead ends: 897 [2024-11-27 23:27:48,112 INFO L226 Difference]: Without dead ends: 482 [2024-11-27 23:27:48,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:48,115 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 117 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:48,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1103 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:27:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-27 23:27:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 469. [2024-11-27 23:27:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 385 states have (on average 1.2545454545454546) internal successors, (483), 391 states have internal predecessors, (483), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-27 23:27:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 627 transitions. [2024-11-27 23:27:48,204 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 627 transitions. Word has length 147 [2024-11-27 23:27:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:48,205 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 627 transitions. [2024-11-27 23:27:48,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 627 transitions. [2024-11-27 23:27:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:48,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:48,207 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:48,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:27:48,208 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:48,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1442873057, now seen corresponding path program 1 times [2024-11-27 23:27:48,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032443629] [2024-11-27 23:27:48,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:49,628 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:49,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:49,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032443629] [2024-11-27 23:27:49,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032443629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:49,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:49,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:27:49,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132014703] [2024-11-27 23:27:49,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:49,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:27:49,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:49,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:27:49,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:49,630 INFO L87 Difference]: Start difference. First operand 469 states and 627 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:27:51,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:51,305 INFO L93 Difference]: Finished difference Result 1045 states and 1390 transitions. [2024-11-27 23:27:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:27:51,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-27 23:27:51,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:51,310 INFO L225 Difference]: With dead ends: 1045 [2024-11-27 23:27:51,310 INFO L226 Difference]: Without dead ends: 588 [2024-11-27 23:27:51,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:27:51,312 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 191 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:51,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1630 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:27:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-27 23:27:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 485. [2024-11-27 23:27:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 400 states have (on average 1.2525) internal successors, (501), 406 states have internal predecessors, (501), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-27 23:27:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 645 transitions. [2024-11-27 23:27:51,393 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 645 transitions. Word has length 147 [2024-11-27 23:27:51,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:51,393 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 645 transitions. [2024-11-27 23:27:51,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:27:51,393 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 645 transitions. [2024-11-27 23:27:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:27:51,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:51,397 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:51,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:27:51,398 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:51,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1020171231, now seen corresponding path program 1 times [2024-11-27 23:27:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178379770] [2024-11-27 23:27:51,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:51,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:53,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:53,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178379770] [2024-11-27 23:27:53,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178379770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:53,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:53,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:27:53,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382108496] [2024-11-27 23:27:53,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:53,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:27:53,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:53,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:27:53,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:27:53,121 INFO L87 Difference]: Start difference. First operand 485 states and 645 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:27:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:54,894 INFO L93 Difference]: Finished difference Result 1077 states and 1426 transitions. [2024-11-27 23:27:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:27:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-27 23:27:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:54,901 INFO L225 Difference]: With dead ends: 1077 [2024-11-27 23:27:54,902 INFO L226 Difference]: Without dead ends: 604 [2024-11-27 23:27:54,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:27:54,904 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 188 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:54,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1969 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:27:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-27 23:27:55,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 599. [2024-11-27 23:27:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 495 states have (on average 1.2424242424242424) internal successors, (615), 503 states have internal predecessors, (615), 87 states have call successors, (87), 16 states have call predecessors, (87), 16 states have return successors, (87), 79 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 23:27:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 789 transitions. [2024-11-27 23:27:55,011 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 789 transitions. Word has length 147 [2024-11-27 23:27:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:55,011 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 789 transitions. [2024-11-27 23:27:55,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:27:55,012 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 789 transitions. [2024-11-27 23:27:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:27:55,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:55,015 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:55,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:27:55,016 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:55,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:55,019 INFO L85 PathProgramCache]: Analyzing trace with hash 781233282, now seen corresponding path program 1 times [2024-11-27 23:27:55,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:55,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144095937] [2024-11-27 23:27:55,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:55,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:55,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144095937] [2024-11-27 23:27:55,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144095937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:55,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:55,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:27:55,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884996014] [2024-11-27 23:27:55,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:55,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:27:55,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:55,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:27:55,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:55,919 INFO L87 Difference]: Start difference. First operand 599 states and 789 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:56,736 INFO L93 Difference]: Finished difference Result 1308 states and 1733 transitions. [2024-11-27 23:27:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:27:56,736 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-27 23:27:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:56,742 INFO L225 Difference]: With dead ends: 1308 [2024-11-27 23:27:56,742 INFO L226 Difference]: Without dead ends: 721 [2024-11-27 23:27:56,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:27:56,745 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 104 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:56,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1195 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:27:56,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-27 23:27:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 696. [2024-11-27 23:27:56,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2521739130434784) internal successors, (720), 584 states have internal predecessors, (720), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-27 23:27:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 924 transitions. [2024-11-27 23:27:56,860 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 924 transitions. Word has length 148 [2024-11-27 23:27:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:56,860 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 924 transitions. [2024-11-27 23:27:56,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:27:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 924 transitions. [2024-11-27 23:27:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:27:56,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:56,864 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:56,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:27:56,864 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:56,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:56,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1132673159, now seen corresponding path program 1 times [2024-11-27 23:27:56,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:56,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198047015] [2024-11-27 23:27:56,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:56,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:57,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:57,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198047015] [2024-11-27 23:27:57,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198047015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:57,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:57,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:27:57,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536387250] [2024-11-27 23:27:57,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:57,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:27:57,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:57,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:27:57,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:27:57,072 INFO L87 Difference]: Start difference. First operand 696 states and 924 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:57,278 INFO L93 Difference]: Finished difference Result 1374 states and 1827 transitions. [2024-11-27 23:27:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:27:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-27 23:27:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:57,289 INFO L225 Difference]: With dead ends: 1374 [2024-11-27 23:27:57,289 INFO L226 Difference]: Without dead ends: 698 [2024-11-27 23:27:57,290 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 [2024-11-27 23:27:57,300 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:57,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 585 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-27 23:27:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-27 23:27:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2504347826086957) internal successors, (719), 584 states have internal predecessors, (719), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-27 23:27:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 923 transitions. [2024-11-27 23:27:57,413 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 923 transitions. Word has length 148 [2024-11-27 23:27:57,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:57,414 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 923 transitions. [2024-11-27 23:27:57,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 923 transitions. [2024-11-27 23:27:57,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:27:57,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:57,417 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:57,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:27:57,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:57,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:57,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1634908125, now seen corresponding path program 1 times [2024-11-27 23:27:57,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:57,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392708767] [2024-11-27 23:27:57,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:57,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:57,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:57,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392708767] [2024-11-27 23:27:57,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392708767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:57,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:27:57,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824259858] [2024-11-27 23:27:57,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:57,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:27:57,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:57,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:27:57,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:27:57,625 INFO L87 Difference]: Start difference. First operand 696 states and 923 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:57,795 INFO L93 Difference]: Finished difference Result 1374 states and 1825 transitions. [2024-11-27 23:27:57,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:27:57,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-27 23:27:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:57,800 INFO L225 Difference]: With dead ends: 1374 [2024-11-27 23:27:57,800 INFO L226 Difference]: Without dead ends: 698 [2024-11-27 23:27:57,801 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 [2024-11-27 23:27:57,802 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 67 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:57,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 580 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-27 23:27:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-27 23:27:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.248695652173913) internal successors, (718), 584 states have internal predecessors, (718), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-27 23:27:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 922 transitions. [2024-11-27 23:27:57,893 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 922 transitions. Word has length 148 [2024-11-27 23:27:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:57,893 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 922 transitions. [2024-11-27 23:27:57,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 922 transitions. [2024-11-27 23:27:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:27:57,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:57,897 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:57,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:27:57,898 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:57,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1071711269, now seen corresponding path program 1 times [2024-11-27 23:27:57,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:57,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510171494] [2024-11-27 23:27:57,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:57,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:27:58,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:58,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510171494] [2024-11-27 23:27:58,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510171494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:58,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:58,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:27:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488435293] [2024-11-27 23:27:58,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:58,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:27:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:58,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:27:58,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:27:58,116 INFO L87 Difference]: Start difference. First operand 696 states and 922 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:58,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:58,297 INFO L93 Difference]: Finished difference Result 1372 states and 1818 transitions. [2024-11-27 23:27:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:27:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-27 23:27:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:58,302 INFO L225 Difference]: With dead ends: 1372 [2024-11-27 23:27:58,303 INFO L226 Difference]: Without dead ends: 696 [2024-11-27 23:27:58,304 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 [2024-11-27 23:27:58,305 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 46 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:58,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 639 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-27 23:27:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 677. [2024-11-27 23:27:58,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 561 states have (on average 1.249554367201426) internal successors, (701), 569 states have internal predecessors, (701), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:27:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 897 transitions. [2024-11-27 23:27:58,395 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 897 transitions. Word has length 148 [2024-11-27 23:27:58,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:58,395 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 897 transitions. [2024-11-27 23:27:58,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:27:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 897 transitions. [2024-11-27 23:27:58,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 23:27:58,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:58,399 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:58,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:27:58,399 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:58,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash 239277608, now seen corresponding path program 1 times [2024-11-27 23:27:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:58,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104326769] [2024-11-27 23:27:58,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:58,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:00,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104326769] [2024-11-27 23:28:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104326769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:28:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740970618] [2024-11-27 23:28:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:00,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:28:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:00,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:28:00,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:28:00,107 INFO L87 Difference]: Start difference. First operand 677 states and 897 transitions. Second operand has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:01,069 INFO L93 Difference]: Finished difference Result 1345 states and 1782 transitions. [2024-11-27 23:28:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:28:01,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-11-27 23:28:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:01,074 INFO L225 Difference]: With dead ends: 1345 [2024-11-27 23:28:01,074 INFO L226 Difference]: Without dead ends: 671 [2024-11-27 23:28:01,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:01,076 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 105 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:01,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1376 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:28:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-27 23:28:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 659. [2024-11-27 23:28:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 543 states have (on average 1.2486187845303867) internal successors, (678), 551 states have internal predecessors, (678), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 874 transitions. [2024-11-27 23:28:01,175 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 874 transitions. Word has length 148 [2024-11-27 23:28:01,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:01,175 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 874 transitions. [2024-11-27 23:28:01,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:01,175 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 874 transitions. [2024-11-27 23:28:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-27 23:28:01,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:01,178 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:01,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:28:01,178 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:01,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash -365804597, now seen corresponding path program 1 times [2024-11-27 23:28:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:01,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692087153] [2024-11-27 23:28:01,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:01,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:01,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:01,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692087153] [2024-11-27 23:28:01,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692087153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:01,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:01,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:01,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689398731] [2024-11-27 23:28:01,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:01,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:01,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:01,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:01,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:01,580 INFO L87 Difference]: Start difference. First operand 659 states and 874 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:01,800 INFO L93 Difference]: Finished difference Result 1311 states and 1730 transitions. [2024-11-27 23:28:01,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:01,801 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-11-27 23:28:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:01,805 INFO L225 Difference]: With dead ends: 1311 [2024-11-27 23:28:01,805 INFO L226 Difference]: Without dead ends: 655 [2024-11-27 23:28:01,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:01,807 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 68 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:01,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 826 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-27 23:28:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 619. [2024-11-27 23:28:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 511 states have (on average 1.2289628180039138) internal successors, (628), 519 states have internal predecessors, (628), 89 states have call successors, (89), 18 states have call predecessors, (89), 18 states have return successors, (89), 81 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-27 23:28:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 806 transitions. [2024-11-27 23:28:01,884 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 806 transitions. Word has length 149 [2024-11-27 23:28:01,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:01,884 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 806 transitions. [2024-11-27 23:28:01,884 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:01,884 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 806 transitions. [2024-11-27 23:28:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-27 23:28:01,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:01,886 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:01,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:28:01,887 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:01,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1711229009, now seen corresponding path program 1 times [2024-11-27 23:28:01,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:01,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105243015] [2024-11-27 23:28:01,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:01,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:02,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:02,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105243015] [2024-11-27 23:28:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105243015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:02,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:02,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:28:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768298117] [2024-11-27 23:28:02,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:02,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:28:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:02,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:28:02,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:02,549 INFO L87 Difference]: Start difference. First operand 619 states and 806 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:03,130 INFO L93 Difference]: Finished difference Result 1523 states and 1987 transitions. [2024-11-27 23:28:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:28:03,131 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-11-27 23:28:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:03,135 INFO L225 Difference]: With dead ends: 1523 [2024-11-27 23:28:03,136 INFO L226 Difference]: Without dead ends: 907 [2024-11-27 23:28:03,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:28:03,138 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 99 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:03,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 882 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-27 23:28:03,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 903. [2024-11-27 23:28:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 713 states have (on average 1.20617110799439) internal successors, (860), 723 states have internal predecessors, (860), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1176 transitions. [2024-11-27 23:28:03,279 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1176 transitions. Word has length 149 [2024-11-27 23:28:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:03,279 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1176 transitions. [2024-11-27 23:28:03,279 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1176 transitions. [2024-11-27 23:28:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:03,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:03,282 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:03,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:28:03,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:03,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:03,283 INFO L85 PathProgramCache]: Analyzing trace with hash -823684889, now seen corresponding path program 1 times [2024-11-27 23:28:03,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:03,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866473972] [2024-11-27 23:28:03,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:03,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:05,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866473972] [2024-11-27 23:28:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866473972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 23:28:05,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363008742] [2024-11-27 23:28:05,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:05,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:28:05,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:05,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:28:05,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:28:05,168 INFO L87 Difference]: Start difference. First operand 903 states and 1176 transitions. Second operand has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:06,626 INFO L93 Difference]: Finished difference Result 1988 states and 2591 transitions. [2024-11-27 23:28:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:28:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-27 23:28:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:06,635 INFO L225 Difference]: With dead ends: 1988 [2024-11-27 23:28:06,635 INFO L226 Difference]: Without dead ends: 1088 [2024-11-27 23:28:06,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:28:06,639 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 98 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:06,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1203 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:28:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-11-27 23:28:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 928. [2024-11-27 23:28:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 738 states have (on average 1.2127371273712737) internal successors, (895), 748 states have internal predecessors, (895), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1211 transitions. [2024-11-27 23:28:06,789 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1211 transitions. Word has length 150 [2024-11-27 23:28:06,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:06,790 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1211 transitions. [2024-11-27 23:28:06,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1211 transitions. [2024-11-27 23:28:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:06,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:06,793 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:06,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:28:06,793 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:06,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1477137701, now seen corresponding path program 1 times [2024-11-27 23:28:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455351034] [2024-11-27 23:28:06,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455351034] [2024-11-27 23:28:07,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455351034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:07,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:07,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:07,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730719253] [2024-11-27 23:28:07,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:07,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:07,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:07,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:07,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:07,188 INFO L87 Difference]: Start difference. First operand 928 states and 1211 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:07,798 INFO L93 Difference]: Finished difference Result 2154 states and 2813 transitions. [2024-11-27 23:28:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:07,798 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-27 23:28:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:07,807 INFO L225 Difference]: With dead ends: 2154 [2024-11-27 23:28:07,808 INFO L226 Difference]: Without dead ends: 1229 [2024-11-27 23:28:07,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:07,814 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 85 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:07,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 466 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:07,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-27 23:28:08,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1225. [2024-11-27 23:28:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 965 states have (on average 1.2041450777202072) internal successors, (1162), 980 states have internal predecessors, (1162), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-27 23:28:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1598 transitions. [2024-11-27 23:28:08,087 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1598 transitions. Word has length 150 [2024-11-27 23:28:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:08,088 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1598 transitions. [2024-11-27 23:28:08,088 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1598 transitions. [2024-11-27 23:28:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:08,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:08,092 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:08,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:28:08,092 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:08,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash 197274023, now seen corresponding path program 1 times [2024-11-27 23:28:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:08,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933939222] [2024-11-27 23:28:08,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:08,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:08,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933939222] [2024-11-27 23:28:08,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933939222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:08,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:08,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:28:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168192565] [2024-11-27 23:28:08,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:08,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:28:08,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:08,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:28:08,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:08,998 INFO L87 Difference]: Start difference. First operand 1225 states and 1598 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:09,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:09,889 INFO L93 Difference]: Finished difference Result 2692 states and 3515 transitions. [2024-11-27 23:28:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:28:09,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-27 23:28:09,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:09,897 INFO L225 Difference]: With dead ends: 2692 [2024-11-27 23:28:09,897 INFO L226 Difference]: Without dead ends: 1487 [2024-11-27 23:28:09,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:28:09,901 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 90 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:09,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1389 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:28:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-11-27 23:28:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1229. [2024-11-27 23:28:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 969 states have (on average 1.2033023735810113) internal successors, (1166), 984 states have internal predecessors, (1166), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-27 23:28:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1602 transitions. [2024-11-27 23:28:10,094 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1602 transitions. Word has length 150 [2024-11-27 23:28:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:10,095 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1602 transitions. [2024-11-27 23:28:10,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1602 transitions. [2024-11-27 23:28:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:10,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:10,098 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:10,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:28:10,099 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:10,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:10,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2046485093, now seen corresponding path program 1 times [2024-11-27 23:28:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:10,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868664384] [2024-11-27 23:28:10,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:10,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:10,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:10,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868664384] [2024-11-27 23:28:10,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868664384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:10,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:10,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:10,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574661499] [2024-11-27 23:28:10,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:10,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:10,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:10,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:10,489 INFO L87 Difference]: Start difference. First operand 1229 states and 1602 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:11,156 INFO L93 Difference]: Finished difference Result 2995 states and 3918 transitions. [2024-11-27 23:28:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:11,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:11,172 INFO L225 Difference]: With dead ends: 2995 [2024-11-27 23:28:11,172 INFO L226 Difference]: Without dead ends: 1786 [2024-11-27 23:28:11,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:11,176 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 104 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:11,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 593 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-27 23:28:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1252. [2024-11-27 23:28:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 992 states have (on average 1.2116935483870968) internal successors, (1202), 1007 states have internal predecessors, (1202), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-27 23:28:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1638 transitions. [2024-11-27 23:28:11,398 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1638 transitions. Word has length 150 [2024-11-27 23:28:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:11,398 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1638 transitions. [2024-11-27 23:28:11,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1638 transitions. [2024-11-27 23:28:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:11,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:11,401 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:11,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 23:28:11,402 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:11,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2108524707, now seen corresponding path program 1 times [2024-11-27 23:28:11,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:11,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906999117] [2024-11-27 23:28:11,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:11,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:16,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906999117] [2024-11-27 23:28:16,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906999117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:16,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 23:28:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273661299] [2024-11-27 23:28:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:16,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:28:16,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:16,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:28:16,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:28:16,463 INFO L87 Difference]: Start difference. First operand 1252 states and 1638 transitions. Second operand has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:26,587 INFO L93 Difference]: Finished difference Result 2772 states and 3632 transitions. [2024-11-27 23:28:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:28:26,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-27 23:28:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:26,596 INFO L225 Difference]: With dead ends: 2772 [2024-11-27 23:28:26,596 INFO L226 Difference]: Without dead ends: 1540 [2024-11-27 23:28:26,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:28:26,600 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 190 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:26,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1866 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-27 23:28:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-27 23:28:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1268. [2024-11-27 23:28:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1008 states have (on average 1.2142857142857142) internal successors, (1224), 1023 states have internal predecessors, (1224), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-27 23:28:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1660 transitions. [2024-11-27 23:28:26,823 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1660 transitions. Word has length 150 [2024-11-27 23:28:26,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:26,823 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1660 transitions. [2024-11-27 23:28:26,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1660 transitions. [2024-11-27 23:28:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:26,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:26,826 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:26,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 23:28:26,826 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:26,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1165374235, now seen corresponding path program 1 times [2024-11-27 23:28:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578833147] [2024-11-27 23:28:26,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:27,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:27,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578833147] [2024-11-27 23:28:27,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578833147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:27,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:27,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:28:27,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646293199] [2024-11-27 23:28:27,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:27,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:27,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:27,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:27,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:28:27,565 INFO L87 Difference]: Start difference. First operand 1268 states and 1660 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:28,220 INFO L93 Difference]: Finished difference Result 2665 states and 3486 transitions. [2024-11-27 23:28:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-27 23:28:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:28,228 INFO L225 Difference]: With dead ends: 2665 [2024-11-27 23:28:28,228 INFO L226 Difference]: Without dead ends: 1417 [2024-11-27 23:28:28,230 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 [2024-11-27 23:28:28,231 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 95 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:28,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 900 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2024-11-27 23:28:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1312. [2024-11-27 23:28:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1047 states have (on average 1.2082139446036295) internal successors, (1265), 1063 states have internal predecessors, (1265), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-27 23:28:28,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1709 transitions. [2024-11-27 23:28:28,515 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1709 transitions. Word has length 150 [2024-11-27 23:28:28,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:28,516 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1709 transitions. [2024-11-27 23:28:28,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1709 transitions. [2024-11-27 23:28:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:28,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:28,521 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:28,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:28:28,523 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:28,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1368794139, now seen corresponding path program 1 times [2024-11-27 23:28:28,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:28,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641493120] [2024-11-27 23:28:28,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:30,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:30,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641493120] [2024-11-27 23:28:30,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641493120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:30,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:30,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 23:28:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132450188] [2024-11-27 23:28:30,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:30,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:28:30,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:30,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:28:30,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:28:30,872 INFO L87 Difference]: Start difference. First operand 1312 states and 1709 transitions. Second operand has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:33,375 INFO L93 Difference]: Finished difference Result 2870 states and 3742 transitions. [2024-11-27 23:28:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:28:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-27 23:28:33,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:33,384 INFO L225 Difference]: With dead ends: 2870 [2024-11-27 23:28:33,384 INFO L226 Difference]: Without dead ends: 1578 [2024-11-27 23:28:33,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:28:33,387 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 173 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:33,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2559 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:28:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-27 23:28:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1310. [2024-11-27 23:28:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1045 states have (on average 1.2066985645933015) internal successors, (1261), 1061 states have internal predecessors, (1261), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-27 23:28:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1705 transitions. [2024-11-27 23:28:33,661 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1705 transitions. Word has length 150 [2024-11-27 23:28:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:33,662 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 1705 transitions. [2024-11-27 23:28:33,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1705 transitions. [2024-11-27 23:28:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:33,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:33,664 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:33,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:28:33,665 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:33,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash 562518505, now seen corresponding path program 1 times [2024-11-27 23:28:33,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:33,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635371500] [2024-11-27 23:28:33,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:33,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:34,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635371500] [2024-11-27 23:28:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635371500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:34,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:34,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:28:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060061839] [2024-11-27 23:28:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:28:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:34,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:28:34,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:28:34,640 INFO L87 Difference]: Start difference. First operand 1310 states and 1705 transitions. Second operand has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:35,705 INFO L93 Difference]: Finished difference Result 2930 states and 3816 transitions. [2024-11-27 23:28:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:28:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-27 23:28:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:35,713 INFO L225 Difference]: With dead ends: 2930 [2024-11-27 23:28:35,714 INFO L226 Difference]: Without dead ends: 1640 [2024-11-27 23:28:35,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:35,717 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 243 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:35,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 727 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:28:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-27 23:28:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1019. [2024-11-27 23:28:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2164449818621523) internal successors, (1006), 838 states have internal predecessors, (1006), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1322 transitions. [2024-11-27 23:28:35,926 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1322 transitions. Word has length 150 [2024-11-27 23:28:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:35,927 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1322 transitions. [2024-11-27 23:28:35,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1322 transitions. [2024-11-27 23:28:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:35,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:35,929 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:35,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 23:28:35,929 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:35,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1583477417, now seen corresponding path program 1 times [2024-11-27 23:28:35,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:35,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583534756] [2024-11-27 23:28:35,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:36,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:36,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583534756] [2024-11-27 23:28:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583534756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:36,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:36,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:28:36,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034077012] [2024-11-27 23:28:36,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:36,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:28:36,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:36,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:28:36,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:28:36,677 INFO L87 Difference]: Start difference. First operand 1019 states and 1322 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:37,384 INFO L93 Difference]: Finished difference Result 2149 states and 2792 transitions. [2024-11-27 23:28:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:28:37,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:37,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:37,395 INFO L225 Difference]: With dead ends: 2149 [2024-11-27 23:28:37,395 INFO L226 Difference]: Without dead ends: 1150 [2024-11-27 23:28:37,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:37,398 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 93 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:37,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1303 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-27 23:28:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1019. [2024-11-27 23:28:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2140266021765418) internal successors, (1004), 838 states have internal predecessors, (1004), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1320 transitions. [2024-11-27 23:28:37,684 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1320 transitions. Word has length 150 [2024-11-27 23:28:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:37,685 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1320 transitions. [2024-11-27 23:28:37,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1320 transitions. [2024-11-27 23:28:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:37,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:37,687 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:37,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 23:28:37,687 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:37,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 781373223, now seen corresponding path program 1 times [2024-11-27 23:28:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:37,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967574592] [2024-11-27 23:28:37,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:37,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:39,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967574592] [2024-11-27 23:28:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967574592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:39,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:39,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:28:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492705192] [2024-11-27 23:28:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:39,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:28:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:39,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:28:39,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:39,646 INFO L87 Difference]: Start difference. First operand 1019 states and 1320 transitions. Second operand has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:41,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:41,525 INFO L93 Difference]: Finished difference Result 2135 states and 2769 transitions. [2024-11-27 23:28:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:28:41,526 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-27 23:28:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:41,531 INFO L225 Difference]: With dead ends: 2135 [2024-11-27 23:28:41,532 INFO L226 Difference]: Without dead ends: 1136 [2024-11-27 23:28:41,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:28:41,534 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 256 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:41,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1154 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:28:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-27 23:28:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1011. [2024-11-27 23:28:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 819 states have (on average 1.2063492063492063) internal successors, (988), 830 states have internal predecessors, (988), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-27 23:28:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1304 transitions. [2024-11-27 23:28:41,792 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1304 transitions. Word has length 150 [2024-11-27 23:28:41,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:41,792 INFO L471 AbstractCegarLoop]: Abstraction has 1011 states and 1304 transitions. [2024-11-27 23:28:41,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1304 transitions. [2024-11-27 23:28:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:41,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:41,794 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:41,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 23:28:41,795 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:41,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1681350053, now seen corresponding path program 1 times [2024-11-27 23:28:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63518207] [2024-11-27 23:28:41,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:42,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:42,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63518207] [2024-11-27 23:28:42,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63518207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:42,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:28:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184601840] [2024-11-27 23:28:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:42,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:28:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:42,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:28:42,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:28:42,439 INFO L87 Difference]: Start difference. First operand 1011 states and 1304 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:43,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:43,291 INFO L93 Difference]: Finished difference Result 2137 states and 2755 transitions. [2024-11-27 23:28:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:28:43,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:43,300 INFO L225 Difference]: With dead ends: 2137 [2024-11-27 23:28:43,300 INFO L226 Difference]: Without dead ends: 1146 [2024-11-27 23:28:43,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:28:43,303 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 200 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:43,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1086 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:28:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-27 23:28:43,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 720. [2024-11-27 23:28:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2190635451505016) internal successors, (729), 604 states have internal predecessors, (729), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 925 transitions. [2024-11-27 23:28:43,490 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 925 transitions. Word has length 150 [2024-11-27 23:28:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:43,490 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 925 transitions. [2024-11-27 23:28:43,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 925 transitions. [2024-11-27 23:28:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:43,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:43,492 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:43,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 23:28:43,492 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:43,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:43,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1477930149, now seen corresponding path program 1 times [2024-11-27 23:28:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:43,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625363733] [2024-11-27 23:28:43,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625363733] [2024-11-27 23:28:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625363733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:44,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:44,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:28:44,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911630463] [2024-11-27 23:28:44,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:44,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:28:44,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:44,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:28:44,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:28:44,543 INFO L87 Difference]: Start difference. First operand 720 states and 925 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:45,393 INFO L93 Difference]: Finished difference Result 1585 states and 2036 transitions. [2024-11-27 23:28:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:28:45,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:45,399 INFO L225 Difference]: With dead ends: 1585 [2024-11-27 23:28:45,399 INFO L226 Difference]: Without dead ends: 864 [2024-11-27 23:28:45,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:28:45,405 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 94 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:45,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 991 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:45,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-27 23:28:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 716. [2024-11-27 23:28:45,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2171717171717171) internal successors, (723), 600 states have internal predecessors, (723), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 919 transitions. [2024-11-27 23:28:45,573 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 919 transitions. Word has length 150 [2024-11-27 23:28:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:45,573 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 919 transitions. [2024-11-27 23:28:45,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 919 transitions. [2024-11-27 23:28:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:45,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:45,574 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:45,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-27 23:28:45,574 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:45,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1795968793, now seen corresponding path program 1 times [2024-11-27 23:28:45,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:45,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146161476] [2024-11-27 23:28:45,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:46,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146161476] [2024-11-27 23:28:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146161476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:46,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:46,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:28:46,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538575122] [2024-11-27 23:28:46,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:46,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:28:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:46,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:28:46,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:46,144 INFO L87 Difference]: Start difference. First operand 716 states and 919 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:46,779 INFO L93 Difference]: Finished difference Result 1577 states and 2024 transitions. [2024-11-27 23:28:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:28:46,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:46,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:46,787 INFO L225 Difference]: With dead ends: 1577 [2024-11-27 23:28:46,787 INFO L226 Difference]: Without dead ends: 864 [2024-11-27 23:28:46,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:46,789 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 92 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:46,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 941 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:28:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-27 23:28:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 704. [2024-11-27 23:28:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 582 states have (on average 1.2147766323024054) internal successors, (707), 588 states have internal predecessors, (707), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 903 transitions. [2024-11-27 23:28:46,910 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 903 transitions. Word has length 150 [2024-11-27 23:28:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:46,911 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 903 transitions. [2024-11-27 23:28:46,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 903 transitions. [2024-11-27 23:28:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:28:46,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:46,912 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:46,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 23:28:46,912 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:46,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -975777600, now seen corresponding path program 1 times [2024-11-27 23:28:46,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:46,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010334820] [2024-11-27 23:28:46,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:46,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:47,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:47,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010334820] [2024-11-27 23:28:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010334820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:47,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:47,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:28:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085325238] [2024-11-27 23:28:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:47,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:28:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:47,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:28:47,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:28:47,642 INFO L87 Difference]: Start difference. First operand 704 states and 903 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:48,427 INFO L93 Difference]: Finished difference Result 1459 states and 1870 transitions. [2024-11-27 23:28:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:28:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-27 23:28:48,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:48,431 INFO L225 Difference]: With dead ends: 1459 [2024-11-27 23:28:48,431 INFO L226 Difference]: Without dead ends: 758 [2024-11-27 23:28:48,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:28:48,433 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 93 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:48,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1489 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-27 23:28:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 716. [2024-11-27 23:28:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2104377104377104) internal successors, (719), 600 states have internal predecessors, (719), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 915 transitions. [2024-11-27 23:28:48,576 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 915 transitions. Word has length 150 [2024-11-27 23:28:48,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:48,576 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 915 transitions. [2024-11-27 23:28:48,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 915 transitions. [2024-11-27 23:28:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:28:48,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:48,578 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:48,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 23:28:48,578 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:48,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash 818719858, now seen corresponding path program 1 times [2024-11-27 23:28:48,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:48,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947947919] [2024-11-27 23:28:48,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:50,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:50,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947947919] [2024-11-27 23:28:50,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947947919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:50,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:50,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:28:50,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359521002] [2024-11-27 23:28:50,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:50,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:28:50,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:50,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:28:50,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:50,129 INFO L87 Difference]: Start difference. First operand 716 states and 915 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:51,548 INFO L93 Difference]: Finished difference Result 1730 states and 2216 transitions. [2024-11-27 23:28:51,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:28:51,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-11-27 23:28:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:51,553 INFO L225 Difference]: With dead ends: 1730 [2024-11-27 23:28:51,553 INFO L226 Difference]: Without dead ends: 1017 [2024-11-27 23:28:51,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:28:51,555 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 178 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:51,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1463 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:28:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-27 23:28:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 720. [2024-11-27 23:28:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2157190635451505) internal successors, (727), 604 states have internal predecessors, (727), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 923 transitions. [2024-11-27 23:28:51,681 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 923 transitions. Word has length 151 [2024-11-27 23:28:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:51,681 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 923 transitions. [2024-11-27 23:28:51,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:28:51,682 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 923 transitions. [2024-11-27 23:28:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:28:51,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:51,683 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:51,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-27 23:28:51,683 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:51,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1241421684, now seen corresponding path program 1 times [2024-11-27 23:28:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:51,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111987361] [2024-11-27 23:28:51,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:51,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:52,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:52,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111987361] [2024-11-27 23:28:52,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111987361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:52,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:52,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:28:53,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675912991] [2024-11-27 23:28:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:53,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:28:53,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:53,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:28:53,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:53,002 INFO L87 Difference]: Start difference. First operand 720 states and 923 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:54,042 INFO L93 Difference]: Finished difference Result 1571 states and 2016 transitions. [2024-11-27 23:28:54,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:28:54,043 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-11-27 23:28:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:54,047 INFO L225 Difference]: With dead ends: 1571 [2024-11-27 23:28:54,047 INFO L226 Difference]: Without dead ends: 854 [2024-11-27 23:28:54,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:28:54,049 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 87 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:54,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1542 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:28:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-27 23:28:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 706. [2024-11-27 23:28:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 584 states have (on average 1.2106164383561644) internal successors, (707), 590 states have internal predecessors, (707), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 903 transitions. [2024-11-27 23:28:54,197 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 903 transitions. Word has length 151 [2024-11-27 23:28:54,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:54,198 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 903 transitions. [2024-11-27 23:28:54,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:28:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 903 transitions. [2024-11-27 23:28:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:28:54,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:54,199 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:54,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-27 23:28:54,200 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:54,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1377799030, now seen corresponding path program 1 times [2024-11-27 23:28:54,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:54,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229820186] [2024-11-27 23:28:54,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:54,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229820186] [2024-11-27 23:28:54,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229820186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:54,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:54,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:54,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220862075] [2024-11-27 23:28:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:54,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:54,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:54,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:54,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:54,458 INFO L87 Difference]: Start difference. First operand 706 states and 903 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:54,736 INFO L93 Difference]: Finished difference Result 1394 states and 1785 transitions. [2024-11-27 23:28:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:54,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-27 23:28:54,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:54,739 INFO L225 Difference]: With dead ends: 1394 [2024-11-27 23:28:54,739 INFO L226 Difference]: Without dead ends: 691 [2024-11-27 23:28:54,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:54,740 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 117 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:54,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 574 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-27 23:28:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 689. [2024-11-27 23:28:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 567 states have (on average 1.2081128747795415) internal successors, (685), 573 states have internal predecessors, (685), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 881 transitions. [2024-11-27 23:28:54,861 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 881 transitions. Word has length 151 [2024-11-27 23:28:54,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:54,861 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 881 transitions. [2024-11-27 23:28:54,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:54,861 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 881 transitions. [2024-11-27 23:28:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:28:54,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:54,862 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:54,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-27 23:28:54,862 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:54,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1202624886, now seen corresponding path program 1 times [2024-11-27 23:28:54,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:54,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43759829] [2024-11-27 23:28:54,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:54,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:55,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43759829] [2024-11-27 23:28:55,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43759829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:55,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:55,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082970979] [2024-11-27 23:28:55,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:55,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:55,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:55,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:55,089 INFO L87 Difference]: Start difference. First operand 689 states and 881 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:55,324 INFO L93 Difference]: Finished difference Result 1361 states and 1741 transitions. [2024-11-27 23:28:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:55,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-27 23:28:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:55,329 INFO L225 Difference]: With dead ends: 1361 [2024-11-27 23:28:55,329 INFO L226 Difference]: Without dead ends: 675 [2024-11-27 23:28:55,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:55,330 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:55,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 805 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-27 23:28:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 669. [2024-11-27 23:28:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 547 states have (on average 1.2029250457038392) internal successors, (658), 553 states have internal predecessors, (658), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 854 transitions. [2024-11-27 23:28:55,489 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 854 transitions. Word has length 151 [2024-11-27 23:28:55,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:55,489 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 854 transitions. [2024-11-27 23:28:55,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:28:55,490 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 854 transitions. [2024-11-27 23:28:55,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:28:55,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:55,491 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:55,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-27 23:28:55,491 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:55,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:55,491 INFO L85 PathProgramCache]: Analyzing trace with hash 962728194, now seen corresponding path program 1 times [2024-11-27 23:28:55,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:55,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524556706] [2024-11-27 23:28:55,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:55,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:56,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524556706] [2024-11-27 23:28:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524556706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:56,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:28:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745435485] [2024-11-27 23:28:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:56,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:28:56,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:56,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:28:56,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:56,467 INFO L87 Difference]: Start difference. First operand 669 states and 854 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:57,276 INFO L93 Difference]: Finished difference Result 1532 states and 1952 transitions. [2024-11-27 23:28:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:28:57,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-27 23:28:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:57,280 INFO L225 Difference]: With dead ends: 1532 [2024-11-27 23:28:57,280 INFO L226 Difference]: Without dead ends: 866 [2024-11-27 23:28:57,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:28:57,281 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 101 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:57,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1162 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-27 23:28:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 671. [2024-11-27 23:28:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 549 states have (on average 1.2021857923497268) internal successors, (660), 555 states have internal predecessors, (660), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-27 23:28:57,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 856 transitions. [2024-11-27 23:28:57,425 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 856 transitions. Word has length 152 [2024-11-27 23:28:57,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:57,425 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 856 transitions. [2024-11-27 23:28:57,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 856 transitions. [2024-11-27 23:28:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:28:57,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:57,426 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:57,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 23:28:57,426 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:57,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:57,427 INFO L85 PathProgramCache]: Analyzing trace with hash -317135484, now seen corresponding path program 1 times [2024-11-27 23:28:57,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:57,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361822052] [2024-11-27 23:28:57,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:57,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:28:58,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:58,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361822052] [2024-11-27 23:28:58,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361822052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:58,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:58,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:28:58,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324407808] [2024-11-27 23:28:58,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:58,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:28:58,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:58,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:28:58,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:58,020 INFO L87 Difference]: Start difference. First operand 671 states and 856 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:59,028 INFO L93 Difference]: Finished difference Result 1968 states and 2487 transitions. [2024-11-27 23:28:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:28:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-27 23:28:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:59,033 INFO L225 Difference]: With dead ends: 1968 [2024-11-27 23:28:59,033 INFO L226 Difference]: Without dead ends: 1300 [2024-11-27 23:28:59,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:59,035 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 159 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:59,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 979 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:28:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-27 23:28:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 915. [2024-11-27 23:28:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 757 states have (on average 1.1889035667107002) internal successors, (900), 767 states have internal predecessors, (900), 125 states have call successors, (125), 32 states have call predecessors, (125), 32 states have return successors, (125), 115 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-27 23:28:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1150 transitions. [2024-11-27 23:28:59,276 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1150 transitions. Word has length 152 [2024-11-27 23:28:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:59,276 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1150 transitions. [2024-11-27 23:28:59,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:28:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1150 transitions. [2024-11-27 23:28:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:28:59,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:59,277 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:59,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 23:28:59,277 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:59,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash -98280766, now seen corresponding path program 1 times [2024-11-27 23:28:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:59,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650766268] [2024-11-27 23:28:59,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:00,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650766268] [2024-11-27 23:29:00,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650766268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:00,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:00,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:29:00,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198909575] [2024-11-27 23:29:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:00,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:29:00,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:00,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:29:00,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:00,113 INFO L87 Difference]: Start difference. First operand 915 states and 1150 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:01,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:01,993 INFO L93 Difference]: Finished difference Result 2592 states and 3253 transitions. [2024-11-27 23:29:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:29:01,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-27 23:29:01,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:01,997 INFO L225 Difference]: With dead ends: 2592 [2024-11-27 23:29:01,997 INFO L226 Difference]: Without dead ends: 1680 [2024-11-27 23:29:01,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:29:01,999 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 186 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:01,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1471 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:29:02,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-11-27 23:29:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 881. [2024-11-27 23:29:02,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 728 states have (on average 1.1854395604395604) internal successors, (863), 737 states have internal predecessors, (863), 121 states have call successors, (121), 31 states have call predecessors, (121), 31 states have return successors, (121), 112 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-27 23:29:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1105 transitions. [2024-11-27 23:29:02,224 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1105 transitions. Word has length 152 [2024-11-27 23:29:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:02,224 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1105 transitions. [2024-11-27 23:29:02,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1105 transitions. [2024-11-27 23:29:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:29:02,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:02,225 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:02,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-27 23:29:02,225 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:02,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2119153406, now seen corresponding path program 1 times [2024-11-27 23:29:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:02,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315441330] [2024-11-27 23:29:02,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:02,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:02,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315441330] [2024-11-27 23:29:02,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315441330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:02,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:02,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:29:02,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217092267] [2024-11-27 23:29:02,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:02,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:29:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:02,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:29:02,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:29:02,552 INFO L87 Difference]: Start difference. First operand 881 states and 1105 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:03,276 INFO L93 Difference]: Finished difference Result 2044 states and 2568 transitions. [2024-11-27 23:29:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:29:03,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-27 23:29:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:03,280 INFO L225 Difference]: With dead ends: 2044 [2024-11-27 23:29:03,280 INFO L226 Difference]: Without dead ends: 1166 [2024-11-27 23:29:03,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:29:03,282 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 112 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:03,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1854 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-27 23:29:03,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1075. [2024-11-27 23:29:03,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 878 states have (on average 1.1765375854214124) internal successors, (1033), 889 states have internal predecessors, (1033), 157 states have call successors, (157), 39 states have call predecessors, (157), 39 states have return successors, (157), 146 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-27 23:29:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1347 transitions. [2024-11-27 23:29:03,562 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1347 transitions. Word has length 152 [2024-11-27 23:29:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:03,562 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1347 transitions. [2024-11-27 23:29:03,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1347 transitions. [2024-11-27 23:29:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:29:03,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:03,563 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:03,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-27 23:29:03,563 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:03,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:03,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1609680316, now seen corresponding path program 1 times [2024-11-27 23:29:03,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:03,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769909214] [2024-11-27 23:29:03,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:03,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:03,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:03,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769909214] [2024-11-27 23:29:03,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769909214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:03,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:03,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:29:03,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998345308] [2024-11-27 23:29:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:03,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:03,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:03,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:03,881 INFO L87 Difference]: Start difference. First operand 1075 states and 1347 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:04,638 INFO L93 Difference]: Finished difference Result 2317 states and 2902 transitions. [2024-11-27 23:29:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:04,639 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-27 23:29:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:04,644 INFO L225 Difference]: With dead ends: 2317 [2024-11-27 23:29:04,644 INFO L226 Difference]: Without dead ends: 1245 [2024-11-27 23:29:04,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:04,646 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 103 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:04,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 522 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-11-27 23:29:05,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1018. [2024-11-27 23:29:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 821 states have (on average 1.1705237515225335) internal successors, (961), 832 states have internal predecessors, (961), 157 states have call successors, (157), 39 states have call predecessors, (157), 39 states have return successors, (157), 146 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-27 23:29:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1275 transitions. [2024-11-27 23:29:05,006 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1275 transitions. Word has length 152 [2024-11-27 23:29:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:05,007 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1275 transitions. [2024-11-27 23:29:05,007 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1275 transitions. [2024-11-27 23:29:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:29:05,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:05,009 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:05,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-27 23:29:05,009 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:05,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2028771022, now seen corresponding path program 1 times [2024-11-27 23:29:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:05,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888538396] [2024-11-27 23:29:05,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:05,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888538396] [2024-11-27 23:29:05,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888538396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:05,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:05,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:29:05,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537254297] [2024-11-27 23:29:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:05,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:05,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:05,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:05,811 INFO L87 Difference]: Start difference. First operand 1018 states and 1275 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:06,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:06,613 INFO L93 Difference]: Finished difference Result 1120 states and 1398 transitions. [2024-11-27 23:29:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-27 23:29:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:06,618 INFO L225 Difference]: With dead ends: 1120 [2024-11-27 23:29:06,618 INFO L226 Difference]: Without dead ends: 1118 [2024-11-27 23:29:06,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:29:06,619 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 89 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:06,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 869 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-27 23:29:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 615. [2024-11-27 23:29:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 517 states have (on average 1.193423597678917) internal successors, (617), 523 states have internal predecessors, (617), 76 states have call successors, (76), 21 states have call predecessors, (76), 21 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 23:29:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 769 transitions. [2024-11-27 23:29:06,847 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 769 transitions. Word has length 152 [2024-11-27 23:29:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:06,847 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 769 transitions. [2024-11-27 23:29:06,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 769 transitions. [2024-11-27 23:29:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:29:06,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:06,849 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:06,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-27 23:29:06,849 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:06,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2026923980, now seen corresponding path program 1 times [2024-11-27 23:29:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:06,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591420215] [2024-11-27 23:29:06,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:07,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:07,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591420215] [2024-11-27 23:29:07,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591420215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:07,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:07,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:29:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245986346] [2024-11-27 23:29:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:07,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:07,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:07,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:07,281 INFO L87 Difference]: Start difference. First operand 615 states and 769 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:07,591 INFO L93 Difference]: Finished difference Result 1237 states and 1544 transitions. [2024-11-27 23:29:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:07,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-27 23:29:07,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:07,594 INFO L225 Difference]: With dead ends: 1237 [2024-11-27 23:29:07,594 INFO L226 Difference]: Without dead ends: 642 [2024-11-27 23:29:07,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:07,596 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 67 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:07,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 566 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:29:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-27 23:29:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 641. [2024-11-27 23:29:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 534 states have (on average 1.1760299625468165) internal successors, (628), 540 states have internal predecessors, (628), 81 states have call successors, (81), 25 states have call predecessors, (81), 25 states have return successors, (81), 75 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-27 23:29:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 790 transitions. [2024-11-27 23:29:07,795 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 790 transitions. Word has length 152 [2024-11-27 23:29:07,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:07,795 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 790 transitions. [2024-11-27 23:29:07,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:07,795 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 790 transitions. [2024-11-27 23:29:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 23:29:07,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:07,796 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:07,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-27 23:29:07,797 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:07,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:07,797 INFO L85 PathProgramCache]: Analyzing trace with hash -251916618, now seen corresponding path program 1 times [2024-11-27 23:29:07,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:07,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188128368] [2024-11-27 23:29:07,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:07,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-27 23:29:07,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:07,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188128368] [2024-11-27 23:29:07,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188128368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:07,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313296886] [2024-11-27 23:29:07,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:07,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:07,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:07,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:07,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:29:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:08,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:08,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:08,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313296886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:08,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:08,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-27 23:29:08,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427686202] [2024-11-27 23:29:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:08,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:08,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:08,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:08,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:08,251 INFO L87 Difference]: Start difference. First operand 641 states and 790 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:08,585 INFO L93 Difference]: Finished difference Result 1270 states and 1567 transitions. [2024-11-27 23:29:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-27 23:29:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:08,588 INFO L225 Difference]: With dead ends: 1270 [2024-11-27 23:29:08,588 INFO L226 Difference]: Without dead ends: 659 [2024-11-27 23:29:08,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:08,590 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:08,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 541 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:29:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-27 23:29:08,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-27 23:29:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 552 states have (on average 1.1702898550724639) internal successors, (646), 558 states have internal predecessors, (646), 81 states have call successors, (81), 25 states have call predecessors, (81), 25 states have return successors, (81), 75 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-27 23:29:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 808 transitions. [2024-11-27 23:29:08,800 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 808 transitions. Word has length 152 [2024-11-27 23:29:08,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:08,800 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 808 transitions. [2024-11-27 23:29:08,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 808 transitions. [2024-11-27 23:29:08,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:29:08,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:08,801 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:08,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:29:09,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 23:29:09,002 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:09,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2021980645, now seen corresponding path program 1 times [2024-11-27 23:29:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:09,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904625495] [2024-11-27 23:29:09,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:09,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:09,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904625495] [2024-11-27 23:29:09,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904625495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:09,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:29:09,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896788873] [2024-11-27 23:29:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:09,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:09,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:09,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:09,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:09,594 INFO L87 Difference]: Start difference. First operand 659 states and 808 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:10,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:10,279 INFO L93 Difference]: Finished difference Result 1753 states and 2131 transitions. [2024-11-27 23:29:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:10,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2024-11-27 23:29:10,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:10,283 INFO L225 Difference]: With dead ends: 1753 [2024-11-27 23:29:10,283 INFO L226 Difference]: Without dead ends: 1124 [2024-11-27 23:29:10,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:10,285 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 84 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:10,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 578 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-27 23:29:10,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 860. [2024-11-27 23:29:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 737 states have (on average 1.1546811397557666) internal successors, (851), 744 states have internal predecessors, (851), 94 states have call successors, (94), 28 states have call predecessors, (94), 28 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-27 23:29:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1039 transitions. [2024-11-27 23:29:10,562 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1039 transitions. Word has length 154 [2024-11-27 23:29:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:10,563 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1039 transitions. [2024-11-27 23:29:10,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1039 transitions. [2024-11-27 23:29:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:29:10,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:10,564 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:10,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-27 23:29:10,565 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:10,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:10,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1686180637, now seen corresponding path program 1 times [2024-11-27 23:29:10,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:10,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278726973] [2024-11-27 23:29:10,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:10,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:11,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:11,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278726973] [2024-11-27 23:29:11,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278726973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:11,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:11,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:29:11,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211674538] [2024-11-27 23:29:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:11,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:29:11,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:11,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:29:11,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:11,770 INFO L87 Difference]: Start difference. First operand 860 states and 1039 transitions. Second operand has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:29:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:12,635 INFO L93 Difference]: Finished difference Result 1885 states and 2266 transitions. [2024-11-27 23:29:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:29:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 154 [2024-11-27 23:29:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:12,639 INFO L225 Difference]: With dead ends: 1885 [2024-11-27 23:29:12,639 INFO L226 Difference]: Without dead ends: 1055 [2024-11-27 23:29:12,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:29:12,640 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 68 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:12,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1002 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:29:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-11-27 23:29:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 975. [2024-11-27 23:29:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 814 states have (on average 1.135135135135135) internal successors, (924), 824 states have internal predecessors, (924), 122 states have call successors, (122), 38 states have call predecessors, (122), 38 states have return successors, (122), 112 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-27 23:29:13,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1168 transitions. [2024-11-27 23:29:13,032 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1168 transitions. Word has length 154 [2024-11-27 23:29:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:13,033 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1168 transitions. [2024-11-27 23:29:13,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.857142857142858) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:29:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1168 transitions. [2024-11-27 23:29:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:29:13,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:13,034 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:13,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-27 23:29:13,034 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:13,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:13,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1763513561, now seen corresponding path program 1 times [2024-11-27 23:29:13,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:13,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707586691] [2024-11-27 23:29:13,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:13,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:13,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:13,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707586691] [2024-11-27 23:29:13,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707586691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:13,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:13,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:29:13,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109075507] [2024-11-27 23:29:13,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:13,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:13,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:13,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:13,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:13,701 INFO L87 Difference]: Start difference. First operand 975 states and 1168 transitions. Second operand has 7 states, 5 states have (on average 12.4) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:14,547 INFO L93 Difference]: Finished difference Result 2172 states and 2593 transitions. [2024-11-27 23:29:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:29:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.4) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2024-11-27 23:29:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:14,551 INFO L225 Difference]: With dead ends: 2172 [2024-11-27 23:29:14,551 INFO L226 Difference]: Without dead ends: 1231 [2024-11-27 23:29:14,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:14,553 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 78 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:14,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 693 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:14,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-27 23:29:14,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1156. [2024-11-27 23:29:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 980 states have (on average 1.1377551020408163) internal successors, (1115), 991 states have internal predecessors, (1115), 133 states have call successors, (133), 42 states have call predecessors, (133), 42 states have return successors, (133), 122 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:29:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1381 transitions. [2024-11-27 23:29:14,922 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1381 transitions. Word has length 154 [2024-11-27 23:29:14,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:14,922 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1381 transitions. [2024-11-27 23:29:14,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.4) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1381 transitions. [2024-11-27 23:29:14,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:29:14,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:14,924 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:14,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-27 23:29:14,924 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:14,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:14,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1176707547, now seen corresponding path program 1 times [2024-11-27 23:29:14,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:14,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344199389] [2024-11-27 23:29:14,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:14,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:15,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344199389] [2024-11-27 23:29:15,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344199389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:15,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:29:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594163233] [2024-11-27 23:29:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:15,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:15,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:15,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:15,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:15,812 INFO L87 Difference]: Start difference. First operand 1156 states and 1381 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:16,760 INFO L93 Difference]: Finished difference Result 2502 states and 2969 transitions. [2024-11-27 23:29:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2024-11-27 23:29:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:16,765 INFO L225 Difference]: With dead ends: 2502 [2024-11-27 23:29:16,765 INFO L226 Difference]: Without dead ends: 1384 [2024-11-27 23:29:16,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:16,767 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:16,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 994 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:29:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-27 23:29:17,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1266. [2024-11-27 23:29:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1090 states have (on average 1.1275229357798164) internal successors, (1229), 1101 states have internal predecessors, (1229), 133 states have call successors, (133), 42 states have call predecessors, (133), 42 states have return successors, (133), 122 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:29:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1495 transitions. [2024-11-27 23:29:17,256 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1495 transitions. Word has length 154 [2024-11-27 23:29:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:17,257 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1495 transitions. [2024-11-27 23:29:17,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:29:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1495 transitions. [2024-11-27 23:29:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:17,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:17,258 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:17,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-27 23:29:17,258 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:17,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash 747728046, now seen corresponding path program 1 times [2024-11-27 23:29:17,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:17,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786903873] [2024-11-27 23:29:17,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125607302] [2024-11-27 23:29:17,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:17,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:17,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:17,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:29:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:18,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-11-27 23:29:18,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:18,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:18,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:18,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-27 23:29:18,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-27 23:29:18,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:18,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-27 23:29:18,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-27 23:29:18,588 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 17 treesize of output 17 [2024-11-27 23:29:19,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:19,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 44 [2024-11-27 23:29:19,831 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 65 treesize of output 41 [2024-11-27 23:29:19,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:19,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 52 [2024-11-27 23:29:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 282 proven. 9 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2024-11-27 23:29:19,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:21,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:21,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786903873] [2024-11-27 23:29:21,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:21,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125607302] [2024-11-27 23:29:21,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125607302] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:21,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:21,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-11-27 23:29:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15017041] [2024-11-27 23:29:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:21,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:21,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:21,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:21,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:29:21,852 INFO L87 Difference]: Start difference. First operand 1266 states and 1495 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:25,829 INFO L93 Difference]: Finished difference Result 3182 states and 3727 transitions. [2024-11-27 23:29:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:29:25,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-27 23:29:25,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:25,837 INFO L225 Difference]: With dead ends: 3182 [2024-11-27 23:29:25,837 INFO L226 Difference]: Without dead ends: 1954 [2024-11-27 23:29:25,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:29:25,839 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 118 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:25,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 681 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:29:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2024-11-27 23:29:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1886. [2024-11-27 23:29:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1642 states have (on average 1.1187576126674788) internal successors, (1837), 1662 states have internal predecessors, (1837), 181 states have call successors, (181), 62 states have call predecessors, (181), 62 states have return successors, (181), 161 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-27 23:29:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2199 transitions. [2024-11-27 23:29:26,546 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2199 transitions. Word has length 155 [2024-11-27 23:29:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:26,546 INFO L471 AbstractCegarLoop]: Abstraction has 1886 states and 2199 transitions. [2024-11-27 23:29:26,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2199 transitions. [2024-11-27 23:29:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:26,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:26,549 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:26,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:29:26,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-27 23:29:26,750 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:26,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1448792624, now seen corresponding path program 1 times [2024-11-27 23:29:26,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:26,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248396337] [2024-11-27 23:29:26,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-27 23:29:27,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:27,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248396337] [2024-11-27 23:29:27,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248396337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:27,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656094615] [2024-11-27 23:29:27,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:27,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:27,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:27,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:29:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:27,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:27,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:27,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:27,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656094615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:27,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:27,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-27 23:29:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861960269] [2024-11-27 23:29:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:27,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:27,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:27,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:27,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:27,347 INFO L87 Difference]: Start difference. First operand 1886 states and 2199 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:28,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:28,041 INFO L93 Difference]: Finished difference Result 3802 states and 4439 transitions. [2024-11-27 23:29:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:28,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-27 23:29:28,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:28,048 INFO L225 Difference]: With dead ends: 3802 [2024-11-27 23:29:28,048 INFO L226 Difference]: Without dead ends: 1958 [2024-11-27 23:29:28,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:28,054 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:28,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:29:28,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-11-27 23:29:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1904. [2024-11-27 23:29:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1660 states have (on average 1.1174698795180722) internal successors, (1855), 1680 states have internal predecessors, (1855), 181 states have call successors, (181), 62 states have call predecessors, (181), 62 states have return successors, (181), 161 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-27 23:29:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2217 transitions. [2024-11-27 23:29:28,715 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2217 transitions. Word has length 155 [2024-11-27 23:29:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:28,715 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2217 transitions. [2024-11-27 23:29:28,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2217 transitions. [2024-11-27 23:29:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:28,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:28,717 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:28,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:28,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-27 23:29:28,917 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:28,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:28,918 INFO L85 PathProgramCache]: Analyzing trace with hash 160922032, now seen corresponding path program 1 times [2024-11-27 23:29:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:28,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617692929] [2024-11-27 23:29:28,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:28,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:30,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:30,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617692929] [2024-11-27 23:29:30,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617692929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:30,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:30,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:29:30,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277582135] [2024-11-27 23:29:30,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:30,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:29:30,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:30,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:29:30,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:30,076 INFO L87 Difference]: Start difference. First operand 1904 states and 2217 transitions. Second operand has 8 states, 5 states have (on average 12.6) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:29:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:31,394 INFO L93 Difference]: Finished difference Result 3789 states and 4390 transitions. [2024-11-27 23:29:31,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:29:31,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 12.6) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-27 23:29:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:31,402 INFO L225 Difference]: With dead ends: 3789 [2024-11-27 23:29:31,402 INFO L226 Difference]: Without dead ends: 1927 [2024-11-27 23:29:31,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:31,405 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 75 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:31,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 811 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:29:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2024-11-27 23:29:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1374. [2024-11-27 23:29:31,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1242 states have (on average 1.109500805152979) internal successors, (1378), 1252 states have internal predecessors, (1378), 96 states have call successors, (96), 35 states have call predecessors, (96), 35 states have return successors, (96), 86 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-27 23:29:31,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1570 transitions. [2024-11-27 23:29:31,923 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1570 transitions. Word has length 155 [2024-11-27 23:29:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:31,923 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1570 transitions. [2024-11-27 23:29:31,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 12.6) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:29:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1570 transitions. [2024-11-27 23:29:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:31,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:31,925 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:31,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-27 23:29:31,926 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:31,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1175499988, now seen corresponding path program 1 times [2024-11-27 23:29:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378695664] [2024-11-27 23:29:31,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:32,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:32,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378695664] [2024-11-27 23:29:32,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378695664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:32,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:32,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:29:32,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230243032] [2024-11-27 23:29:32,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:32,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:32,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:32,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:32,335 INFO L87 Difference]: Start difference. First operand 1374 states and 1570 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:33,293 INFO L93 Difference]: Finished difference Result 3703 states and 4242 transitions. [2024-11-27 23:29:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:29:33,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-27 23:29:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:33,301 INFO L225 Difference]: With dead ends: 3703 [2024-11-27 23:29:33,301 INFO L226 Difference]: Without dead ends: 1081 [2024-11-27 23:29:33,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:29:33,305 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 117 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:33,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1406 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:33,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-27 23:29:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1081. [2024-11-27 23:29:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 949 states have (on average 1.0864067439409906) internal successors, (1031), 959 states have internal predecessors, (1031), 96 states have call successors, (96), 35 states have call predecessors, (96), 35 states have return successors, (96), 86 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-27 23:29:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1223 transitions. [2024-11-27 23:29:33,666 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1223 transitions. Word has length 155 [2024-11-27 23:29:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:33,666 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1223 transitions. [2024-11-27 23:29:33,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1223 transitions. [2024-11-27 23:29:33,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:33,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:33,667 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:33,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-27 23:29:33,667 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:33,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1547125426, now seen corresponding path program 1 times [2024-11-27 23:29:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032694506] [2024-11-27 23:29:33,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:33,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989010757] [2024-11-27 23:29:33,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:33,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:33,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:33,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:29:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:34,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 23:29:34,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:34,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:34,442 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 19 treesize of output 19 [2024-11-27 23:29:34,459 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 17 treesize of output 17 [2024-11-27 23:29:34,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-27 23:29:35,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:35,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 54 [2024-11-27 23:29:35,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:35,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 36 [2024-11-27 23:29:35,078 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 58 treesize of output 30 [2024-11-27 23:29:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:35,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:35,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:35,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032694506] [2024-11-27 23:29:35,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:35,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989010757] [2024-11-27 23:29:35,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989010757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:35,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:35,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:29:35,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546793230] [2024-11-27 23:29:35,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:35,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:35,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:35,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:35,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:35,153 INFO L87 Difference]: Start difference. First operand 1081 states and 1223 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:36,534 INFO L93 Difference]: Finished difference Result 2372 states and 2680 transitions. [2024-11-27 23:29:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:29:36,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-27 23:29:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:36,540 INFO L225 Difference]: With dead ends: 2372 [2024-11-27 23:29:36,540 INFO L226 Difference]: Without dead ends: 1333 [2024-11-27 23:29:36,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:36,542 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 170 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:36,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 609 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:29:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-27 23:29:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1099. [2024-11-27 23:29:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 967 states have (on average 1.0847983453981385) internal successors, (1049), 977 states have internal predecessors, (1049), 96 states have call successors, (96), 35 states have call predecessors, (96), 35 states have return successors, (96), 86 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-27 23:29:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1241 transitions. [2024-11-27 23:29:37,075 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1241 transitions. Word has length 155 [2024-11-27 23:29:37,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:37,075 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1241 transitions. [2024-11-27 23:29:37,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1241 transitions. [2024-11-27 23:29:37,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 23:29:37,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:37,077 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:37,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:29:37,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-27 23:29:37,278 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:37,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:37,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1693593586, now seen corresponding path program 1 times [2024-11-27 23:29:37,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:37,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12919100] [2024-11-27 23:29:37,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:37,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:37,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1246444163] [2024-11-27 23:29:37,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:37,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:37,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:37,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:37,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:29:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:37,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:29:37,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:37,914 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 9 treesize of output 3 [2024-11-27 23:29:37,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:37,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:37,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:29:37,939 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 17 treesize of output 17 [2024-11-27 23:29:38,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:38,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2024-11-27 23:29:38,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:38,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 38 [2024-11-27 23:29:38,250 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 46 treesize of output 26 [2024-11-27 23:29:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:29:38,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:38,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12919100] [2024-11-27 23:29:38,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246444163] [2024-11-27 23:29:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246444163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:38,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:29:38,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295437754] [2024-11-27 23:29:38,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:38,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:38,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:38,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:38,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:38,285 INFO L87 Difference]: Start difference. First operand 1099 states and 1241 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:40,766 INFO L93 Difference]: Finished difference Result 2130 states and 2402 transitions. [2024-11-27 23:29:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:40,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-27 23:29:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:40,769 INFO L225 Difference]: With dead ends: 2130 [2024-11-27 23:29:40,769 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:29:40,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:40,772 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 128 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:40,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 582 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:29:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:29:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:29:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:29:40,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-11-27 23:29:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:40,776 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:29:40,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:29:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:29:40,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:29:40,779 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:29:40,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:29:40,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81aa4303-8edb-4851-bbec-ed4a2d1b45b3/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:40,985 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:40,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.