./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --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_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8f11c58bd911b111c6f04ca73beac7abb77a983b1f6790a335f756f9ecfba15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:45:11,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:45:11,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:45:11,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:45:11,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:45:12,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:45:12,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:45:12,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:45:12,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:45:12,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:45:12,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:45:12,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:45:12,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:45:12,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:45:12,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:45:12,012 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:45:12,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:12,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:12,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:45:12,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:45:12,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:45:12,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:45:12,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:45:12,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:45:12,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:45:12,014 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_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8f11c58bd911b111c6f04ca73beac7abb77a983b1f6790a335f756f9ecfba15 [2024-12-02 07:45:12,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:45:12,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:45:12,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:45:12,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:45:12,272 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:45:12,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:45:14,869 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/data/50afb5794/c04902919fec4064be37992ea0ad40b2/FLAGdbed0bc61 [2024-12-02 07:45:15,106 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:45:15,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:45:15,117 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/data/50afb5794/c04902919fec4064be37992ea0ad40b2/FLAGdbed0bc61 [2024-12-02 07:45:15,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/data/50afb5794/c04902919fec4064be37992ea0ad40b2 [2024-12-02 07:45:15,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:45:15,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:45:15,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:45:15,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:45:15,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:45:15,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0e0af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15, skipping insertion in model container [2024-12-02 07:45:15,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:45:15,681 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_1fad952c-37e3-4c75-bfbf-54cb4f90117e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10376,10389] [2024-12-02 07:45:15,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:45:15,739 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:45:15,804 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_1fad952c-37e3-4c75-bfbf-54cb4f90117e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10376,10389] [2024-12-02 07:45:15,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:45:15,850 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:45:15,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15 WrapperNode [2024-12-02 07:45:15,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:45:15,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:45:15,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:45:15,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:45:15,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,891 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 902 [2024-12-02 07:45:15,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:45:15,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:45:15,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:45:15,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:45:15,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,917 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:45:15,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:45:15,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:45:15,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:45:15,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:45:15,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (1/1) ... [2024-12-02 07:45:15,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:15,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:45:15,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:45:15,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:45:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:45:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:45:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:45:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:45:16,115 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:45:16,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:45:16,794 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-12-02 07:45:16,794 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:45:16,808 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:45:16,808 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:45:16,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:16 BoogieIcfgContainer [2024-12-02 07:45:16,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:45:16,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:45:16,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:45:16,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:45:16,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:45:15" (1/3) ... [2024-12-02 07:45:16,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec53ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:16, skipping insertion in model container [2024-12-02 07:45:16,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:15" (2/3) ... [2024-12-02 07:45:16,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec53ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:16, skipping insertion in model container [2024-12-02 07:45:16,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:16" (3/3) ... [2024-12-02 07:45:16,817 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 07:45:16,832 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:45:16,834 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 201 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 07:45:16,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:45:16,896 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;@6e40fbdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:45:16,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:45:16,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 07:45:16,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:16,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:16,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:16,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1361095482, now seen corresponding path program 1 times [2024-12-02 07:45:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072083353] [2024-12-02 07:45:16,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:17,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:17,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072083353] [2024-12-02 07:45:17,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072083353] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:17,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:17,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:17,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134149916] [2024-12-02 07:45:17,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:17,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:17,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:17,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:17,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:17,707 INFO L87 Difference]: Start difference. First operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 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) Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:18,392 INFO L93 Difference]: Finished difference Result 1440 states and 2328 transitions. [2024-12-02 07:45:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:45:18,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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) Word has length 107 [2024-12-02 07:45:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:18,409 INFO L225 Difference]: With dead ends: 1440 [2024-12-02 07:45:18,409 INFO L226 Difference]: Without dead ends: 1332 [2024-12-02 07:45:18,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:45:18,416 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 2817 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:18,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 5703 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:45:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-12-02 07:45:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 303. [2024-12-02 07:45:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4503311258278146) internal successors, (438), 302 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 438 transitions. [2024-12-02 07:45:18,477 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 438 transitions. Word has length 107 [2024-12-02 07:45:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:18,478 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 438 transitions. [2024-12-02 07:45:18,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 438 transitions. [2024-12-02 07:45:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:18,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:18,480 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:18,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:45:18,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:18,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1847794712, now seen corresponding path program 1 times [2024-12-02 07:45:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:18,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950826014] [2024-12-02 07:45:18,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:18,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950826014] [2024-12-02 07:45:18,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950826014] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:18,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:18,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:18,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309756394] [2024-12-02 07:45:18,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:18,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:18,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:18,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:18,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:18,941 INFO L87 Difference]: Start difference. First operand 303 states and 438 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:19,331 INFO L93 Difference]: Finished difference Result 1559 states and 2435 transitions. [2024-12-02 07:45:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:19,338 INFO L225 Difference]: With dead ends: 1559 [2024-12-02 07:45:19,338 INFO L226 Difference]: Without dead ends: 1399 [2024-12-02 07:45:19,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:19,340 INFO L435 NwaCegarLoop]: 733 mSDtfsCounter, 1949 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:19,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 3135 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:19,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-12-02 07:45:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 482. [2024-12-02 07:45:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.5051975051975053) internal successors, (724), 481 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 724 transitions. [2024-12-02 07:45:19,374 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 724 transitions. Word has length 109 [2024-12-02 07:45:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:19,374 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 724 transitions. [2024-12-02 07:45:19,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 724 transitions. [2024-12-02 07:45:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:19,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:19,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:19,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:45:19,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:19,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2013134268, now seen corresponding path program 1 times [2024-12-02 07:45:19,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:19,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403590199] [2024-12-02 07:45:19,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:19,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403590199] [2024-12-02 07:45:19,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403590199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:19,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:19,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:19,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512989070] [2024-12-02 07:45:19,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:19,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:19,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:19,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:19,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:19,770 INFO L87 Difference]: Start difference. First operand 482 states and 724 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:20,072 INFO L93 Difference]: Finished difference Result 1738 states and 2721 transitions. [2024-12-02 07:45:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:20,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:20,080 INFO L225 Difference]: With dead ends: 1738 [2024-12-02 07:45:20,080 INFO L226 Difference]: Without dead ends: 1578 [2024-12-02 07:45:20,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:20,082 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 2229 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:20,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 2685 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-12-02 07:45:20,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 735. [2024-12-02 07:45:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.5367847411444142) internal successors, (1128), 734 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1128 transitions. [2024-12-02 07:45:20,102 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1128 transitions. Word has length 109 [2024-12-02 07:45:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:20,103 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1128 transitions. [2024-12-02 07:45:20,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,103 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1128 transitions. [2024-12-02 07:45:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:20,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:20,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:20,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:45:20,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:20,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:20,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1500386704, now seen corresponding path program 1 times [2024-12-02 07:45:20,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:20,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374852659] [2024-12-02 07:45:20,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:20,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:20,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:20,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374852659] [2024-12-02 07:45:20,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374852659] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:20,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:20,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971674087] [2024-12-02 07:45:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:20,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:20,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:20,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:20,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:20,321 INFO L87 Difference]: Start difference. First operand 735 states and 1128 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:20,588 INFO L93 Difference]: Finished difference Result 1907 states and 2991 transitions. [2024-12-02 07:45:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:20,594 INFO L225 Difference]: With dead ends: 1907 [2024-12-02 07:45:20,594 INFO L226 Difference]: Without dead ends: 1747 [2024-12-02 07:45:20,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:20,596 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 2405 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:20,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 2320 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-12-02 07:45:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 899. [2024-12-02 07:45:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.5478841870824054) internal successors, (1390), 898 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1390 transitions. [2024-12-02 07:45:20,631 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1390 transitions. Word has length 109 [2024-12-02 07:45:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:20,632 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1390 transitions. [2024-12-02 07:45:20,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1390 transitions. [2024-12-02 07:45:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:20,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:20,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:20,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:45:20,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:20,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:20,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2131359206, now seen corresponding path program 1 times [2024-12-02 07:45:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:20,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422120347] [2024-12-02 07:45:20,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:20,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:20,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422120347] [2024-12-02 07:45:20,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422120347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:20,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:20,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45073956] [2024-12-02 07:45:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:20,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:20,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:20,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:20,900 INFO L87 Difference]: Start difference. First operand 899 states and 1390 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:21,145 INFO L93 Difference]: Finished difference Result 2066 states and 3245 transitions. [2024-12-02 07:45:21,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:21,145 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:21,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:21,151 INFO L225 Difference]: With dead ends: 2066 [2024-12-02 07:45:21,151 INFO L226 Difference]: Without dead ends: 1906 [2024-12-02 07:45:21,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:21,153 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 2913 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:21,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 2206 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2024-12-02 07:45:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1058. [2024-12-02 07:45:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1057 states have (on average 1.555345316934721) internal successors, (1644), 1057 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1644 transitions. [2024-12-02 07:45:21,190 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1644 transitions. Word has length 109 [2024-12-02 07:45:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:21,190 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1644 transitions. [2024-12-02 07:45:21,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1644 transitions. [2024-12-02 07:45:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:21,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:21,191 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:21,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:45:21,192 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:21,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -983368864, now seen corresponding path program 1 times [2024-12-02 07:45:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978776517] [2024-12-02 07:45:21,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:21,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:21,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978776517] [2024-12-02 07:45:21,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978776517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:21,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:21,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:45:21,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003360056] [2024-12-02 07:45:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:21,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:45:21,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:21,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:45:21,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:21,297 INFO L87 Difference]: Start difference. First operand 1058 states and 1644 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:21,337 INFO L93 Difference]: Finished difference Result 2729 states and 4305 transitions. [2024-12-02 07:45:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:45:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:21,343 INFO L225 Difference]: With dead ends: 2729 [2024-12-02 07:45:21,344 INFO L226 Difference]: Without dead ends: 1858 [2024-12-02 07:45:21,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:21,345 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 115 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:21,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 637 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:45:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2024-12-02 07:45:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1834. [2024-12-02 07:45:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.55810147299509) internal successors, (2856), 1833 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2856 transitions. [2024-12-02 07:45:21,396 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2856 transitions. Word has length 109 [2024-12-02 07:45:21,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:21,396 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2856 transitions. [2024-12-02 07:45:21,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:21,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2856 transitions. [2024-12-02 07:45:21,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:21,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:21,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:21,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:45:21,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:21,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:21,399 INFO L85 PathProgramCache]: Analyzing trace with hash -739291201, now seen corresponding path program 1 times [2024-12-02 07:45:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:21,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854408859] [2024-12-02 07:45:21,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:21,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:21,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:21,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854408859] [2024-12-02 07:45:21,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854408859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:21,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:21,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738316597] [2024-12-02 07:45:21,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:21,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:21,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:21,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:21,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:21,891 INFO L87 Difference]: Start difference. First operand 1834 states and 2856 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:22,307 INFO L93 Difference]: Finished difference Result 3483 states and 5462 transitions. [2024-12-02 07:45:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:22,311 INFO L225 Difference]: With dead ends: 3483 [2024-12-02 07:45:22,311 INFO L226 Difference]: Without dead ends: 1836 [2024-12-02 07:45:22,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:45:22,313 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 1110 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:22,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1328 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:22,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-12-02 07:45:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2024-12-02 07:45:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.5548281505728314) internal successors, (2850), 1833 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2850 transitions. [2024-12-02 07:45:22,342 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2850 transitions. Word has length 109 [2024-12-02 07:45:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:22,343 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2850 transitions. [2024-12-02 07:45:22,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2850 transitions. [2024-12-02 07:45:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:22,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:22,344 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:22,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:45:22,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:22,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash 307798176, now seen corresponding path program 1 times [2024-12-02 07:45:22,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:22,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777811941] [2024-12-02 07:45:22,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:22,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:22,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777811941] [2024-12-02 07:45:22,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777811941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:22,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544852752] [2024-12-02 07:45:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:22,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:22,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:22,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:22,540 INFO L87 Difference]: Start difference. First operand 1834 states and 2850 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:22,820 INFO L93 Difference]: Finished difference Result 3987 states and 6244 transitions. [2024-12-02 07:45:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:22,827 INFO L225 Difference]: With dead ends: 3987 [2024-12-02 07:45:22,827 INFO L226 Difference]: Without dead ends: 3686 [2024-12-02 07:45:22,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:22,828 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 2206 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:22,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 2613 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-12-02 07:45:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 2133. [2024-12-02 07:45:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2132 states have (on average 1.5581613508442778) internal successors, (3322), 2132 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3322 transitions. [2024-12-02 07:45:22,867 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3322 transitions. Word has length 109 [2024-12-02 07:45:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:22,867 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 3322 transitions. [2024-12-02 07:45:22,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3322 transitions. [2024-12-02 07:45:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:22,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:22,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:22,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:45:22,869 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:22,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2133931794, now seen corresponding path program 1 times [2024-12-02 07:45:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863108408] [2024-12-02 07:45:22,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:23,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:23,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863108408] [2024-12-02 07:45:23,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863108408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:23,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:23,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:23,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916126619] [2024-12-02 07:45:23,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:23,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:23,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:23,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:23,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:23,058 INFO L87 Difference]: Start difference. First operand 2133 states and 3322 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:23,316 INFO L93 Difference]: Finished difference Result 4292 states and 6725 transitions. [2024-12-02 07:45:23,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:23,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:23,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:23,324 INFO L225 Difference]: With dead ends: 4292 [2024-12-02 07:45:23,324 INFO L226 Difference]: Without dead ends: 3991 [2024-12-02 07:45:23,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:23,326 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 2156 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:23,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3130 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-12-02 07:45:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 2443. [2024-12-02 07:45:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2442 states have (on average 1.5606060606060606) internal successors, (3811), 2442 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3811 transitions. [2024-12-02 07:45:23,378 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3811 transitions. Word has length 109 [2024-12-02 07:45:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:23,378 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3811 transitions. [2024-12-02 07:45:23,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3811 transitions. [2024-12-02 07:45:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:45:23,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:23,380 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:23,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:45:23,380 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:23,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:23,381 INFO L85 PathProgramCache]: Analyzing trace with hash 763996610, now seen corresponding path program 1 times [2024-12-02 07:45:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:23,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600784988] [2024-12-02 07:45:23,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:23,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600784988] [2024-12-02 07:45:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600784988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:23,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430496877] [2024-12-02 07:45:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:23,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:23,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:23,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:23,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:23,564 INFO L87 Difference]: Start difference. First operand 2443 states and 3811 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:23,820 INFO L93 Difference]: Finished difference Result 4607 states and 7222 transitions. [2024-12-02 07:45:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) Word has length 109 [2024-12-02 07:45:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:23,830 INFO L225 Difference]: With dead ends: 4607 [2024-12-02 07:45:23,830 INFO L226 Difference]: Without dead ends: 4306 [2024-12-02 07:45:23,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:23,832 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 2332 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:23,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 3271 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:23,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-12-02 07:45:23,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 2763. [2024-12-02 07:45:23,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.562635771180304) internal successors, (4316), 2762 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4316 transitions. [2024-12-02 07:45:23,880 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4316 transitions. Word has length 109 [2024-12-02 07:45:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:23,880 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4316 transitions. [2024-12-02 07:45:23,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4316 transitions. [2024-12-02 07:45:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 07:45:23,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:23,881 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:23,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:45:23,882 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:23,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:23,882 INFO L85 PathProgramCache]: Analyzing trace with hash -186015446, now seen corresponding path program 1 times [2024-12-02 07:45:23,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:23,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840497868] [2024-12-02 07:45:23,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:23,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:23,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:23,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:23,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840497868] [2024-12-02 07:45:23,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840497868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:23,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:23,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:23,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338563576] [2024-12-02 07:45:23,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:24,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:24,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:24,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:24,000 INFO L87 Difference]: Start difference. First operand 2763 states and 4316 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:24,154 INFO L93 Difference]: Finished difference Result 5470 states and 8575 transitions. [2024-12-02 07:45:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 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) Word has length 110 [2024-12-02 07:45:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:24,162 INFO L225 Difference]: With dead ends: 5470 [2024-12-02 07:45:24,162 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:24,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:24,165 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 743 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:24,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 150 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5499637943519189) internal successors, (4281), 2762 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4281 transitions. [2024-12-02 07:45:24,194 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4281 transitions. Word has length 110 [2024-12-02 07:45:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:24,194 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4281 transitions. [2024-12-02 07:45:24,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4281 transitions. [2024-12-02 07:45:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 07:45:24,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:24,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:24,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:45:24,196 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:24,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1618909482, now seen corresponding path program 1 times [2024-12-02 07:45:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:24,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135272778] [2024-12-02 07:45:24,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:24,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:24,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135272778] [2024-12-02 07:45:24,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135272778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:24,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:24,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278326842] [2024-12-02 07:45:24,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:24,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:24,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:24,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:24,299 INFO L87 Difference]: Start difference. First operand 2763 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:24,452 INFO L93 Difference]: Finished difference Result 5454 states and 8486 transitions. [2024-12-02 07:45:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:24,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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) Word has length 111 [2024-12-02 07:45:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:24,457 INFO L225 Difference]: With dead ends: 5454 [2024-12-02 07:45:24,457 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:24,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:24,460 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 692 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:24,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 182 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:24,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5372918175235337) internal successors, (4246), 2762 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4246 transitions. [2024-12-02 07:45:24,504 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4246 transitions. Word has length 111 [2024-12-02 07:45:24,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:24,505 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4246 transitions. [2024-12-02 07:45:24,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4246 transitions. [2024-12-02 07:45:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 07:45:24,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:24,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:24,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:45:24,506 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:24,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -716601046, now seen corresponding path program 1 times [2024-12-02 07:45:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580933876] [2024-12-02 07:45:24,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:24,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:24,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580933876] [2024-12-02 07:45:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580933876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:24,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:24,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549204987] [2024-12-02 07:45:24,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:24,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:24,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:24,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:24,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:24,629 INFO L87 Difference]: Start difference. First operand 2763 states and 4246 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:24,792 INFO L93 Difference]: Finished difference Result 5446 states and 8407 transitions. [2024-12-02 07:45:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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) Word has length 112 [2024-12-02 07:45:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:24,798 INFO L225 Difference]: With dead ends: 5446 [2024-12-02 07:45:24,798 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:24,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:24,802 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 664 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:24,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 202 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5246198406951486) internal successors, (4211), 2762 states have internal predecessors, (4211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4211 transitions. [2024-12-02 07:45:24,849 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4211 transitions. Word has length 112 [2024-12-02 07:45:24,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:24,850 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4211 transitions. [2024-12-02 07:45:24,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4211 transitions. [2024-12-02 07:45:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 07:45:24,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:24,852 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:24,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:45:24,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:24,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:24,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1447492906, now seen corresponding path program 1 times [2024-12-02 07:45:24,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28445004] [2024-12-02 07:45:24,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28445004] [2024-12-02 07:45:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28445004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:24,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:24,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:24,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582207578] [2024-12-02 07:45:24,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:24,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:24,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:24,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:24,983 INFO L87 Difference]: Start difference. First operand 2763 states and 4211 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:25,127 INFO L93 Difference]: Finished difference Result 5458 states and 8351 transitions. [2024-12-02 07:45:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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) Word has length 113 [2024-12-02 07:45:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:25,133 INFO L225 Difference]: With dead ends: 5458 [2024-12-02 07:45:25,133 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:25,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:25,137 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 691 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:25,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 174 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5119478638667632) internal successors, (4176), 2762 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4176 transitions. [2024-12-02 07:45:25,173 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4176 transitions. Word has length 113 [2024-12-02 07:45:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:25,174 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4176 transitions. [2024-12-02 07:45:25,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4176 transitions. [2024-12-02 07:45:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 07:45:25,175 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:25,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:25,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:45:25,176 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:25,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:25,176 INFO L85 PathProgramCache]: Analyzing trace with hash 912210718, now seen corresponding path program 1 times [2024-12-02 07:45:25,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:25,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114045616] [2024-12-02 07:45:25,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:25,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:25,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114045616] [2024-12-02 07:45:25,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114045616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:25,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:25,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:25,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237467494] [2024-12-02 07:45:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:25,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:25,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:25,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:25,312 INFO L87 Difference]: Start difference. First operand 2763 states and 4176 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:25,451 INFO L93 Difference]: Finished difference Result 5466 states and 8291 transitions. [2024-12-02 07:45:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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) Word has length 114 [2024-12-02 07:45:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:25,457 INFO L225 Difference]: With dead ends: 5466 [2024-12-02 07:45:25,457 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:25,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:25,460 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 707 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:25,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 158 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.499275887038378) internal successors, (4141), 2762 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4141 transitions. [2024-12-02 07:45:25,492 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4141 transitions. Word has length 114 [2024-12-02 07:45:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:25,493 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4141 transitions. [2024-12-02 07:45:25,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4141 transitions. [2024-12-02 07:45:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:45:25,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:25,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:25,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:45:25,495 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:25,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1260402774, now seen corresponding path program 1 times [2024-12-02 07:45:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:25,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506847824] [2024-12-02 07:45:25,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:25,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506847824] [2024-12-02 07:45:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506847824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:25,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429579268] [2024-12-02 07:45:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:25,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:25,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:25,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:25,617 INFO L87 Difference]: Start difference. First operand 2763 states and 4141 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:25,762 INFO L93 Difference]: Finished difference Result 5462 states and 8217 transitions. [2024-12-02 07:45:25,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:25,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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) Word has length 115 [2024-12-02 07:45:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:25,767 INFO L225 Difference]: With dead ends: 5462 [2024-12-02 07:45:25,767 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:25,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:25,770 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 689 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:25,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 166 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4866039102099928) internal successors, (4106), 2762 states have internal predecessors, (4106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4106 transitions. [2024-12-02 07:45:25,805 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4106 transitions. Word has length 115 [2024-12-02 07:45:25,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:25,806 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4106 transitions. [2024-12-02 07:45:25,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4106 transitions. [2024-12-02 07:45:25,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 07:45:25,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:25,807 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:25,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:45:25,808 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:25,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1805227026, now seen corresponding path program 1 times [2024-12-02 07:45:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824384356] [2024-12-02 07:45:25,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824384356] [2024-12-02 07:45:25,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824384356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:25,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:25,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:45:25,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193416003] [2024-12-02 07:45:25,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:25,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:45:25,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:25,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:45:25,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:45:25,931 INFO L87 Difference]: Start difference. First operand 2763 states and 4106 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:26,072 INFO L93 Difference]: Finished difference Result 5450 states and 8135 transitions. [2024-12-02 07:45:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:45:26,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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) Word has length 116 [2024-12-02 07:45:26,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:26,077 INFO L225 Difference]: With dead ends: 5450 [2024-12-02 07:45:26,077 INFO L226 Difference]: Without dead ends: 2763 [2024-12-02 07:45:26,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:45:26,080 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 647 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:26,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 190 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:45:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-12-02 07:45:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-12-02 07:45:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4739319333816074) internal successors, (4071), 2762 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4071 transitions. [2024-12-02 07:45:26,114 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4071 transitions. Word has length 116 [2024-12-02 07:45:26,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:26,114 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4071 transitions. [2024-12-02 07:45:26,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4071 transitions. [2024-12-02 07:45:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 07:45:26,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:26,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:26,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:45:26,116 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:26,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 695724750, now seen corresponding path program 1 times [2024-12-02 07:45:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:26,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713533461] [2024-12-02 07:45:26,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:26,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713533461] [2024-12-02 07:45:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713533461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:26,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:26,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:45:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768131628] [2024-12-02 07:45:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:26,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:45:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:26,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:45:26,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:45:26,657 INFO L87 Difference]: Start difference. First operand 2763 states and 4071 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:27,361 INFO L93 Difference]: Finished difference Result 8018 states and 11843 transitions. [2024-12-02 07:45:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:45:27,361 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 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) Word has length 117 [2024-12-02 07:45:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:27,371 INFO L225 Difference]: With dead ends: 8018 [2024-12-02 07:45:27,371 INFO L226 Difference]: Without dead ends: 5437 [2024-12-02 07:45:27,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:45:27,375 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1225 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:27,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 862 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:45:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-12-02 07:45:27,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 2763. [2024-12-02 07:45:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4717595944967414) internal successors, (4065), 2762 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4065 transitions. [2024-12-02 07:45:27,421 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4065 transitions. Word has length 117 [2024-12-02 07:45:27,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:27,421 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4065 transitions. [2024-12-02 07:45:27,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4065 transitions. [2024-12-02 07:45:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:45:27,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:27,423 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:27,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:45:27,423 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:27,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:27,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1187396198, now seen corresponding path program 1 times [2024-12-02 07:45:27,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:27,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485524085] [2024-12-02 07:45:27,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:27,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:28,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:28,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485524085] [2024-12-02 07:45:28,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485524085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:28,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:28,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:45:28,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741221204] [2024-12-02 07:45:28,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:28,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:45:28,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:28,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:45:28,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:45:28,002 INFO L87 Difference]: Start difference. First operand 2763 states and 4065 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:28,693 INFO L93 Difference]: Finished difference Result 8148 states and 11991 transitions. [2024-12-02 07:45:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:45:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 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) Word has length 118 [2024-12-02 07:45:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:28,704 INFO L225 Difference]: With dead ends: 8148 [2024-12-02 07:45:28,704 INFO L226 Difference]: Without dead ends: 5553 [2024-12-02 07:45:28,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:45:28,707 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1336 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:28,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 940 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:45:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2024-12-02 07:45:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 2785. [2024-12-02 07:45:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4701867816091954) internal successors, (4093), 2784 states have internal predecessors, (4093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4093 transitions. [2024-12-02 07:45:28,763 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4093 transitions. Word has length 118 [2024-12-02 07:45:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:28,763 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4093 transitions. [2024-12-02 07:45:28,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4093 transitions. [2024-12-02 07:45:28,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:45:28,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:28,765 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:28,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:45:28,765 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:28,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1287225056, now seen corresponding path program 1 times [2024-12-02 07:45:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:28,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425926756] [2024-12-02 07:45:28,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:29,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:29,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425926756] [2024-12-02 07:45:29,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425926756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:29,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:29,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:45:29,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14782199] [2024-12-02 07:45:29,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:29,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:45:29,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:29,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:45:29,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:45:29,073 INFO L87 Difference]: Start difference. First operand 2785 states and 4093 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:29,448 INFO L93 Difference]: Finished difference Result 7981 states and 11807 transitions. [2024-12-02 07:45:29,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:45:29,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 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) Word has length 118 [2024-12-02 07:45:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:29,456 INFO L225 Difference]: With dead ends: 7981 [2024-12-02 07:45:29,456 INFO L226 Difference]: Without dead ends: 5329 [2024-12-02 07:45:29,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:45:29,458 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:29,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 645 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:45:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2024-12-02 07:45:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 2785. [2024-12-02 07:45:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4698275862068966) internal successors, (4092), 2784 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4092 transitions. [2024-12-02 07:45:29,496 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4092 transitions. Word has length 118 [2024-12-02 07:45:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:29,496 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4092 transitions. [2024-12-02 07:45:29,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:29,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4092 transitions. [2024-12-02 07:45:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:45:29,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:29,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:29,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:45:29,497 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:29,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:29,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1796469002, now seen corresponding path program 1 times [2024-12-02 07:45:29,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:29,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881395224] [2024-12-02 07:45:29,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:29,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:29,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881395224] [2024-12-02 07:45:29,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881395224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:29,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:29,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:45:29,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84162334] [2024-12-02 07:45:29,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:29,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:45:29,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:29,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:45:29,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:45:29,877 INFO L87 Difference]: Start difference. First operand 2785 states and 4092 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:30,567 INFO L93 Difference]: Finished difference Result 8118 states and 11938 transitions. [2024-12-02 07:45:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:45:30,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 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) Word has length 119 [2024-12-02 07:45:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:30,576 INFO L225 Difference]: With dead ends: 8118 [2024-12-02 07:45:30,576 INFO L226 Difference]: Without dead ends: 5568 [2024-12-02 07:45:30,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:45:30,580 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1811 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:30,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1062 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:45:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5568 states. [2024-12-02 07:45:30,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5568 to 2836. [2024-12-02 07:45:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2835 states have (on average 1.4677248677248678) internal successors, (4161), 2835 states have internal predecessors, (4161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4161 transitions. [2024-12-02 07:45:30,632 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4161 transitions. Word has length 119 [2024-12-02 07:45:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:30,632 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 4161 transitions. [2024-12-02 07:45:30,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4161 transitions. [2024-12-02 07:45:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:45:30,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:30,634 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:30,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:45:30,634 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:30,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -26080566, now seen corresponding path program 1 times [2024-12-02 07:45:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431116184] [2024-12-02 07:45:30,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:30,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431116184] [2024-12-02 07:45:30,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431116184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:30,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:30,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:30,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445578365] [2024-12-02 07:45:30,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:30,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:45:30,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:30,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:45:30,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:45:30,951 INFO L87 Difference]: Start difference. First operand 2836 states and 4161 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:31,370 INFO L93 Difference]: Finished difference Result 8051 states and 11860 transitions. [2024-12-02 07:45:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:45:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 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) Word has length 119 [2024-12-02 07:45:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:31,374 INFO L225 Difference]: With dead ends: 8051 [2024-12-02 07:45:31,374 INFO L226 Difference]: Without dead ends: 5500 [2024-12-02 07:45:31,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:45:31,377 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 637 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:31,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 771 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:45:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2024-12-02 07:45:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 2785. [2024-12-02 07:45:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4673132183908046) internal successors, (4085), 2784 states have internal predecessors, (4085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4085 transitions. [2024-12-02 07:45:31,418 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4085 transitions. Word has length 119 [2024-12-02 07:45:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:31,418 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4085 transitions. [2024-12-02 07:45:31,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4085 transitions. [2024-12-02 07:45:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 07:45:31,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:31,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:31,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:45:31,420 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:31,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:31,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1714393757, now seen corresponding path program 1 times [2024-12-02 07:45:31,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:31,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55716436] [2024-12-02 07:45:31,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:31,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:31,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:31,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55716436] [2024-12-02 07:45:31,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55716436] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:31,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:31,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:45:31,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083840350] [2024-12-02 07:45:31,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:31,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:45:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:31,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:45:31,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:45:31,887 INFO L87 Difference]: Start difference. First operand 2785 states and 4085 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:32,525 INFO L93 Difference]: Finished difference Result 8196 states and 12031 transitions. [2024-12-02 07:45:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:45:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 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) Word has length 120 [2024-12-02 07:45:32,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:32,528 INFO L225 Difference]: With dead ends: 8196 [2024-12-02 07:45:32,528 INFO L226 Difference]: Without dead ends: 5652 [2024-12-02 07:45:32,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:45:32,531 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 1665 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:32,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 1053 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:45:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5652 states. [2024-12-02 07:45:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5652 to 2876. [2024-12-02 07:45:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 1.4653913043478262) internal successors, (4213), 2875 states have internal predecessors, (4213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4213 transitions. [2024-12-02 07:45:32,564 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4213 transitions. Word has length 120 [2024-12-02 07:45:32,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:32,564 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 4213 transitions. [2024-12-02 07:45:32,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4213 transitions. [2024-12-02 07:45:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 07:45:32,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:32,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:45:32,566 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:32,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1849493053, now seen corresponding path program 1 times [2024-12-02 07:45:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:32,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483707923] [2024-12-02 07:45:32,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:32,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:32,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483707923] [2024-12-02 07:45:32,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483707923] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:32,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:32,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:45:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5000276] [2024-12-02 07:45:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:32,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:45:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:32,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:45:32,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:45:32,993 INFO L87 Difference]: Start difference. First operand 2876 states and 4213 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:34,080 INFO L93 Difference]: Finished difference Result 16286 states and 23987 transitions. [2024-12-02 07:45:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:45:34,080 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 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) Word has length 120 [2024-12-02 07:45:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:34,087 INFO L225 Difference]: With dead ends: 16286 [2024-12-02 07:45:34,087 INFO L226 Difference]: Without dead ends: 13660 [2024-12-02 07:45:34,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-12-02 07:45:34,091 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 2311 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:34,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 1536 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:45:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13660 states. [2024-12-02 07:45:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13660 to 2882. [2024-12-02 07:45:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2881 states have (on average 1.463727872266574) internal successors, (4217), 2881 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4217 transitions. [2024-12-02 07:45:34,158 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4217 transitions. Word has length 120 [2024-12-02 07:45:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:34,158 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 4217 transitions. [2024-12-02 07:45:34,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4217 transitions. [2024-12-02 07:45:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 07:45:34,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:34,159 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:34,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:45:34,160 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:34,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:34,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2130590169, now seen corresponding path program 1 times [2024-12-02 07:45:34,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:34,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534086996] [2024-12-02 07:45:34,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:34,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:34,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534086996] [2024-12-02 07:45:34,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534086996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:34,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:34,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:34,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193471241] [2024-12-02 07:45:34,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:34,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:45:34,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:34,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:45:34,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:45:34,454 INFO L87 Difference]: Start difference. First operand 2882 states and 4217 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:35,041 INFO L93 Difference]: Finished difference Result 8138 states and 11981 transitions. [2024-12-02 07:45:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:45:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 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) Word has length 121 [2024-12-02 07:45:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:35,044 INFO L225 Difference]: With dead ends: 8138 [2024-12-02 07:45:35,044 INFO L226 Difference]: Without dead ends: 5481 [2024-12-02 07:45:35,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:45:35,046 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 800 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:35,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1110 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:45:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2024-12-02 07:45:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 2769. [2024-12-02 07:45:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4664017341040463) internal successors, (4059), 2768 states have internal predecessors, (4059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4059 transitions. [2024-12-02 07:45:35,085 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4059 transitions. Word has length 121 [2024-12-02 07:45:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:35,085 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4059 transitions. [2024-12-02 07:45:35,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4059 transitions. [2024-12-02 07:45:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 07:45:35,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:35,086 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:35,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:45:35,086 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:35,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:35,087 INFO L85 PathProgramCache]: Analyzing trace with hash -768722828, now seen corresponding path program 1 times [2024-12-02 07:45:35,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:35,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448682579] [2024-12-02 07:45:35,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:35,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:35,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:35,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448682579] [2024-12-02 07:45:35,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448682579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:35,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:35,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:35,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324304273] [2024-12-02 07:45:35,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:35,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:45:35,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:35,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:45:35,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:45:35,329 INFO L87 Difference]: Start difference. First operand 2769 states and 4059 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:35,733 INFO L93 Difference]: Finished difference Result 8069 states and 11881 transitions. [2024-12-02 07:45:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:45:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 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) Word has length 121 [2024-12-02 07:45:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:35,736 INFO L225 Difference]: With dead ends: 8069 [2024-12-02 07:45:35,736 INFO L226 Difference]: Without dead ends: 5463 [2024-12-02 07:45:35,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:45:35,738 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 640 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:35,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 809 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:45:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2024-12-02 07:45:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 2769. [2024-12-02 07:45:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4645953757225434) internal successors, (4054), 2768 states have internal predecessors, (4054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4054 transitions. [2024-12-02 07:45:35,768 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4054 transitions. Word has length 121 [2024-12-02 07:45:35,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:35,768 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4054 transitions. [2024-12-02 07:45:35,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4054 transitions. [2024-12-02 07:45:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:45:35,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:35,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:35,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:45:35,769 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:35,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:35,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1051782329, now seen corresponding path program 1 times [2024-12-02 07:45:35,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:35,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773321064] [2024-12-02 07:45:35,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:35,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:36,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:36,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773321064] [2024-12-02 07:45:36,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773321064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:36,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:36,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:45:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137017334] [2024-12-02 07:45:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:36,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:45:36,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:36,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:45:36,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:45:36,400 INFO L87 Difference]: Start difference. First operand 2769 states and 4054 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:37,251 INFO L93 Difference]: Finished difference Result 14249 states and 20901 transitions. [2024-12-02 07:45:37,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 07:45:37,251 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 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) Word has length 122 [2024-12-02 07:45:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:37,261 INFO L225 Difference]: With dead ends: 14249 [2024-12-02 07:45:37,261 INFO L226 Difference]: Without dead ends: 11705 [2024-12-02 07:45:37,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:45:37,265 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 3596 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:37,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3596 Valid, 838 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:45:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11705 states. [2024-12-02 07:45:37,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11705 to 2800. [2024-12-02 07:45:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2799 states have (on average 1.4623079671311183) internal successors, (4093), 2799 states have internal predecessors, (4093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4093 transitions. [2024-12-02 07:45:37,351 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4093 transitions. Word has length 122 [2024-12-02 07:45:37,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:37,351 INFO L471 AbstractCegarLoop]: Abstraction has 2800 states and 4093 transitions. [2024-12-02 07:45:37,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4093 transitions. [2024-12-02 07:45:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:45:37,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:37,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:37,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:45:37,352 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:37,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:37,353 INFO L85 PathProgramCache]: Analyzing trace with hash 289868898, now seen corresponding path program 1 times [2024-12-02 07:45:37,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:37,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456305482] [2024-12-02 07:45:37,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:37,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:37,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456305482] [2024-12-02 07:45:37,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456305482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:37,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:37,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:45:37,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225423068] [2024-12-02 07:45:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:37,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:45:37,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:37,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:45:37,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:45:37,597 INFO L87 Difference]: Start difference. First operand 2800 states and 4093 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:38,111 INFO L93 Difference]: Finished difference Result 8056 states and 11845 transitions. [2024-12-02 07:45:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:45:38,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:45:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:38,114 INFO L225 Difference]: With dead ends: 8056 [2024-12-02 07:45:38,114 INFO L226 Difference]: Without dead ends: 5512 [2024-12-02 07:45:38,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:45:38,116 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 969 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:38,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1013 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:45:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5512 states. [2024-12-02 07:45:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5512 to 2793. [2024-12-02 07:45:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2792 states have (on average 1.4634670487106016) internal successors, (4086), 2792 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 4086 transitions. [2024-12-02 07:45:38,160 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 4086 transitions. Word has length 123 [2024-12-02 07:45:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:38,160 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 4086 transitions. [2024-12-02 07:45:38,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 4086 transitions. [2024-12-02 07:45:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:45:38,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:38,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:38,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:45:38,161 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:38,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:38,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1982702915, now seen corresponding path program 1 times [2024-12-02 07:45:38,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:38,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332477071] [2024-12-02 07:45:38,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:38,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:38,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:38,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332477071] [2024-12-02 07:45:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332477071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:38,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:45:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833546968] [2024-12-02 07:45:38,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:38,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:45:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:38,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:45:38,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:45:38,692 INFO L87 Difference]: Start difference. First operand 2793 states and 4086 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:39,237 INFO L93 Difference]: Finished difference Result 6039 states and 8895 transitions. [2024-12-02 07:45:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:45:39,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:45:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:39,241 INFO L225 Difference]: With dead ends: 6039 [2024-12-02 07:45:39,242 INFO L226 Difference]: Without dead ends: 5401 [2024-12-02 07:45:39,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:45:39,244 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 928 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:39,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2137 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:45:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2024-12-02 07:45:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 2774. [2024-12-02 07:45:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2773 states have (on average 1.4626758023800939) internal successors, (4056), 2773 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4056 transitions. [2024-12-02 07:45:39,278 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4056 transitions. Word has length 123 [2024-12-02 07:45:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:39,278 INFO L471 AbstractCegarLoop]: Abstraction has 2774 states and 4056 transitions. [2024-12-02 07:45:39,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4056 transitions. [2024-12-02 07:45:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:45:39,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:39,279 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:39,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:45:39,279 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:39,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash 676674274, now seen corresponding path program 1 times [2024-12-02 07:45:39,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:39,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344628303] [2024-12-02 07:45:39,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:39,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:39,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344628303] [2024-12-02 07:45:39,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344628303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:39,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:39,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:45:39,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410819358] [2024-12-02 07:45:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:39,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:45:39,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:39,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:45:39,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:45:39,948 INFO L87 Difference]: Start difference. First operand 2774 states and 4056 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:40,788 INFO L93 Difference]: Finished difference Result 11164 states and 16489 transitions. [2024-12-02 07:45:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:45:40,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:45:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:40,794 INFO L225 Difference]: With dead ends: 11164 [2024-12-02 07:45:40,794 INFO L226 Difference]: Without dead ends: 10546 [2024-12-02 07:45:40,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:45:40,797 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 884 mSDsluCounter, 5079 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:40,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 5662 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:45:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10546 states. [2024-12-02 07:45:40,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10546 to 2765. [2024-12-02 07:45:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2764 states have (on average 1.461287988422576) internal successors, (4039), 2764 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 4039 transitions. [2024-12-02 07:45:40,840 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 4039 transitions. Word has length 123 [2024-12-02 07:45:40,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:40,841 INFO L471 AbstractCegarLoop]: Abstraction has 2765 states and 4039 transitions. [2024-12-02 07:45:40,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 4039 transitions. [2024-12-02 07:45:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:45:40,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:40,841 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:45:40,841 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:40,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash -299237052, now seen corresponding path program 1 times [2024-12-02 07:45:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760137092] [2024-12-02 07:45:40,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:40,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:44,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:44,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760137092] [2024-12-02 07:45:44,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760137092] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:44,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:44,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2024-12-02 07:45:44,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749854878] [2024-12-02 07:45:44,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:44,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-02 07:45:44,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:44,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-02 07:45:44,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1922, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 07:45:44,856 INFO L87 Difference]: Start difference. First operand 2765 states and 4039 transitions. Second operand has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:45:58,886 INFO L93 Difference]: Finished difference Result 21333 states and 31525 transitions. [2024-12-02 07:45:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 07:45:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:45:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:45:58,897 INFO L225 Difference]: With dead ends: 21333 [2024-12-02 07:45:58,897 INFO L226 Difference]: Without dead ends: 21032 [2024-12-02 07:45:58,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1032, Invalid=6450, Unknown=0, NotChecked=0, Total=7482 [2024-12-02 07:45:58,901 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 3324 mSDsluCounter, 19791 mSDsCounter, 0 mSdLazyCounter, 13643 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 20650 SdHoareTripleChecker+Invalid, 13668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 13643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:45:58,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 20650 Invalid, 13668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 13643 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-12-02 07:45:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2024-12-02 07:45:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 2836. [2024-12-02 07:45:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2835 states have (on average 1.4582010582010583) internal successors, (4134), 2835 states have internal predecessors, (4134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4134 transitions. [2024-12-02 07:45:59,001 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4134 transitions. Word has length 123 [2024-12-02 07:45:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:45:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 4134 transitions. [2024-12-02 07:45:59,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4134 transitions. [2024-12-02 07:45:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:45:59,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:45:59,002 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:45:59,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:45:59,002 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:45:59,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash 905017955, now seen corresponding path program 1 times [2024-12-02 07:45:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:59,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668334477] [2024-12-02 07:45:59,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:59,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:01,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668334477] [2024-12-02 07:46:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668334477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:01,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:01,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2024-12-02 07:46:01,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636323507] [2024-12-02 07:46:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:01,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-02 07:46:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:01,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-02 07:46:01,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1691, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 07:46:01,858 INFO L87 Difference]: Start difference. First operand 2836 states and 4134 transitions. Second operand has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:14,913 INFO L93 Difference]: Finished difference Result 23602 states and 34889 transitions. [2024-12-02 07:46:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-02 07:46:14,913 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:46:14,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:14,925 INFO L225 Difference]: With dead ends: 23602 [2024-12-02 07:46:14,925 INFO L226 Difference]: Without dead ends: 21058 [2024-12-02 07:46:14,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=894, Invalid=5748, Unknown=0, NotChecked=0, Total=6642 [2024-12-02 07:46:14,930 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 2657 mSDsluCounter, 21437 mSDsCounter, 0 mSdLazyCounter, 14674 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 22292 SdHoareTripleChecker+Invalid, 14705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 14674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:14,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 22292 Invalid, 14705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 14674 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-12-02 07:46:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21058 states. [2024-12-02 07:46:15,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21058 to 2853. [2024-12-02 07:46:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.45617110799439) internal successors, (4153), 2852 states have internal predecessors, (4153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4153 transitions. [2024-12-02 07:46:15,005 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4153 transitions. Word has length 123 [2024-12-02 07:46:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:15,005 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 4153 transitions. [2024-12-02 07:46:15,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4153 transitions. [2024-12-02 07:46:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:46:15,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:15,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:15,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:46:15,006 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:15,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1271361053, now seen corresponding path program 1 times [2024-12-02 07:46:15,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:15,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940456572] [2024-12-02 07:46:15,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:15,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:15,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940456572] [2024-12-02 07:46:15,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940456572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:15,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:15,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:15,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246014936] [2024-12-02 07:46:15,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:15,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:15,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:15,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:15,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:15,077 INFO L87 Difference]: Start difference. First operand 2853 states and 4153 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:15,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:15,100 INFO L93 Difference]: Finished difference Result 7805 states and 11537 transitions. [2024-12-02 07:46:15,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:15,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:46:15,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:15,104 INFO L225 Difference]: With dead ends: 7805 [2024-12-02 07:46:15,104 INFO L226 Difference]: Without dead ends: 5261 [2024-12-02 07:46:15,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:15,106 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:15,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 551 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:15,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-12-02 07:46:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5123. [2024-12-02 07:46:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 1.4595860991800078) internal successors, (7476), 5122 states have internal predecessors, (7476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7476 transitions. [2024-12-02 07:46:15,149 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 7476 transitions. Word has length 123 [2024-12-02 07:46:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:15,149 INFO L471 AbstractCegarLoop]: Abstraction has 5123 states and 7476 transitions. [2024-12-02 07:46:15,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 7476 transitions. [2024-12-02 07:46:15,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:46:15,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:15,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:15,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:46:15,150 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:15,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash -506781723, now seen corresponding path program 1 times [2024-12-02 07:46:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274245809] [2024-12-02 07:46:15,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:15,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:16,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:16,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274245809] [2024-12-02 07:46:16,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274245809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:16,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:16,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 07:46:16,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260065635] [2024-12-02 07:46:16,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:16,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:46:16,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:16,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:46:16,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:46:16,013 INFO L87 Difference]: Start difference. First operand 5123 states and 7476 transitions. Second operand has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:17,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:17,546 INFO L93 Difference]: Finished difference Result 16074 states and 23610 transitions. [2024-12-02 07:46:17,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 07:46:17,547 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:46:17,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:17,555 INFO L225 Difference]: With dead ends: 16074 [2024-12-02 07:46:17,555 INFO L226 Difference]: Without dead ends: 14873 [2024-12-02 07:46:17,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 07:46:17,559 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 1436 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:17,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 4532 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:46:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14873 states. [2024-12-02 07:46:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14873 to 5090. [2024-12-02 07:46:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5090 states, 5089 states have (on average 1.4600117901355865) internal successors, (7430), 5089 states have internal predecessors, (7430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5090 states to 5090 states and 7430 transitions. [2024-12-02 07:46:17,626 INFO L78 Accepts]: Start accepts. Automaton has 5090 states and 7430 transitions. Word has length 123 [2024-12-02 07:46:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:17,626 INFO L471 AbstractCegarLoop]: Abstraction has 5090 states and 7430 transitions. [2024-12-02 07:46:17,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5090 states and 7430 transitions. [2024-12-02 07:46:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:46:17,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:17,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:17,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:46:17,627 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:17,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash 2046852421, now seen corresponding path program 1 times [2024-12-02 07:46:17,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:17,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32209098] [2024-12-02 07:46:17,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:17,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:17,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:17,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32209098] [2024-12-02 07:46:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32209098] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:17,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:17,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:46:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845882933] [2024-12-02 07:46:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:17,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:46:17,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:17,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:46:17,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:46:17,861 INFO L87 Difference]: Start difference. First operand 5090 states and 7430 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:18,371 INFO L93 Difference]: Finished difference Result 14998 states and 21966 transitions. [2024-12-02 07:46:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:46:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:46:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:18,376 INFO L225 Difference]: With dead ends: 14998 [2024-12-02 07:46:18,376 INFO L226 Difference]: Without dead ends: 10114 [2024-12-02 07:46:18,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:46:18,380 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 778 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:18,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1080 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:46:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2024-12-02 07:46:18,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5084. [2024-12-02 07:46:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5084 states, 5083 states have (on average 1.4601613220539051) internal successors, (7422), 5083 states have internal predecessors, (7422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:18,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 7422 transitions. [2024-12-02 07:46:18,426 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 7422 transitions. Word has length 123 [2024-12-02 07:46:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:18,426 INFO L471 AbstractCegarLoop]: Abstraction has 5084 states and 7422 transitions. [2024-12-02 07:46:18,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 7422 transitions. [2024-12-02 07:46:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 07:46:18,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:18,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:18,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 07:46:18,427 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:18,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 884540902, now seen corresponding path program 1 times [2024-12-02 07:46:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:18,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19294500] [2024-12-02 07:46:18,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:18,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:18,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:18,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19294500] [2024-12-02 07:46:18,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19294500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:18,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:18,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:46:18,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351589496] [2024-12-02 07:46:18,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:18,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:46:18,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:18,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:46:18,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:46:18,899 INFO L87 Difference]: Start difference. First operand 5084 states and 7422 transitions. Second operand has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:19,384 INFO L93 Difference]: Finished difference Result 20755 states and 30548 transitions. [2024-12-02 07:46:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:46:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 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) Word has length 123 [2024-12-02 07:46:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:19,397 INFO L225 Difference]: With dead ends: 20755 [2024-12-02 07:46:19,397 INFO L226 Difference]: Without dead ends: 19568 [2024-12-02 07:46:19,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:46:19,402 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 1325 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:19,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2148 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:19,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2024-12-02 07:46:19,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 5045. [2024-12-02 07:46:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 1.4615384615384615) internal successors, (7372), 5044 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 7372 transitions. [2024-12-02 07:46:19,489 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 7372 transitions. Word has length 123 [2024-12-02 07:46:19,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:19,490 INFO L471 AbstractCegarLoop]: Abstraction has 5045 states and 7372 transitions. [2024-12-02 07:46:19,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:19,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 7372 transitions. [2024-12-02 07:46:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:46:19,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:19,490 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:19,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 07:46:19,490 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:19,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1333814116, now seen corresponding path program 1 times [2024-12-02 07:46:19,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:19,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197991401] [2024-12-02 07:46:19,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:19,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197991401] [2024-12-02 07:46:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197991401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:46:20,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123869907] [2024-12-02 07:46:20,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:20,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:46:20,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:20,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:46:20,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:20,063 INFO L87 Difference]: Start difference. First operand 5045 states and 7372 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:20,694 INFO L93 Difference]: Finished difference Result 11033 states and 16208 transitions. [2024-12-02 07:46:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:46:20,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) Word has length 124 [2024-12-02 07:46:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:20,701 INFO L225 Difference]: With dead ends: 11033 [2024-12-02 07:46:20,701 INFO L226 Difference]: Without dead ends: 9879 [2024-12-02 07:46:20,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:46:20,703 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 1037 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:20,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 2144 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:20,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2024-12-02 07:46:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 5027. [2024-12-02 07:46:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5027 states, 5026 states have (on average 1.4619976124154397) internal successors, (7348), 5026 states have internal predecessors, (7348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 7348 transitions. [2024-12-02 07:46:20,763 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 7348 transitions. Word has length 124 [2024-12-02 07:46:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:20,763 INFO L471 AbstractCegarLoop]: Abstraction has 5027 states and 7348 transitions. [2024-12-02 07:46:20,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 7348 transitions. [2024-12-02 07:46:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:46:20,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:20,764 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:20,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 07:46:20,764 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:20,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -299015138, now seen corresponding path program 1 times [2024-12-02 07:46:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763065876] [2024-12-02 07:46:20,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:20,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:21,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:21,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763065876] [2024-12-02 07:46:21,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763065876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:21,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:21,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:46:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259174795] [2024-12-02 07:46:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:21,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:46:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:21,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:46:21,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:46:21,448 INFO L87 Difference]: Start difference. First operand 5027 states and 7348 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:22,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:22,368 INFO L93 Difference]: Finished difference Result 20635 states and 30406 transitions. [2024-12-02 07:46:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:46:22,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 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) Word has length 124 [2024-12-02 07:46:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:22,379 INFO L225 Difference]: With dead ends: 20635 [2024-12-02 07:46:22,379 INFO L226 Difference]: Without dead ends: 19501 [2024-12-02 07:46:22,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:46:22,382 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 1053 mSDsluCounter, 4043 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:22,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 4588 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:46:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2024-12-02 07:46:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 5033. [2024-12-02 07:46:22,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5033 states, 5032 states have (on average 1.462241653418124) internal successors, (7358), 5032 states have internal predecessors, (7358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:22,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 7358 transitions. [2024-12-02 07:46:22,460 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 7358 transitions. Word has length 124 [2024-12-02 07:46:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:22,460 INFO L471 AbstractCegarLoop]: Abstraction has 5033 states and 7358 transitions. [2024-12-02 07:46:22,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 7358 transitions. [2024-12-02 07:46:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:46:22,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:22,461 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:22,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 07:46:22,461 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:22,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:22,462 INFO L85 PathProgramCache]: Analyzing trace with hash -379461027, now seen corresponding path program 1 times [2024-12-02 07:46:22,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:22,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769166019] [2024-12-02 07:46:22,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:22,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:22,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:22,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:22,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769166019] [2024-12-02 07:46:22,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769166019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:22,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:22,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:46:22,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021718610] [2024-12-02 07:46:22,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:22,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:46:22,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:22,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:46:22,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:22,909 INFO L87 Difference]: Start difference. First operand 5033 states and 7358 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:23,432 INFO L93 Difference]: Finished difference Result 11002 states and 16172 transitions. [2024-12-02 07:46:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:46:23,432 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) Word has length 124 [2024-12-02 07:46:23,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:23,437 INFO L225 Difference]: With dead ends: 11002 [2024-12-02 07:46:23,437 INFO L226 Difference]: Without dead ends: 9823 [2024-12-02 07:46:23,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:46:23,439 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 1300 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:23,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 1814 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9823 states. [2024-12-02 07:46:23,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9823 to 4987. [2024-12-02 07:46:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 1.4643000401123145) internal successors, (7301), 4986 states have internal predecessors, (7301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 7301 transitions. [2024-12-02 07:46:23,487 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 7301 transitions. Word has length 124 [2024-12-02 07:46:23,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:23,487 INFO L471 AbstractCegarLoop]: Abstraction has 4987 states and 7301 transitions. [2024-12-02 07:46:23,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 7301 transitions. [2024-12-02 07:46:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 07:46:23,487 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:23,487 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:23,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 07:46:23,487 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:23,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:23,488 INFO L85 PathProgramCache]: Analyzing trace with hash -835295381, now seen corresponding path program 1 times [2024-12-02 07:46:23,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:23,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011556972] [2024-12-02 07:46:23,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:23,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:23,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:23,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011556972] [2024-12-02 07:46:23,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011556972] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:23,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:23,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:46:23,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952673280] [2024-12-02 07:46:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:23,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:46:23,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:23,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:46:23,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:46:23,614 INFO L87 Difference]: Start difference. First operand 4987 states and 7301 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:23,666 INFO L93 Difference]: Finished difference Result 11889 states and 17506 transitions. [2024-12-02 07:46:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:46:23,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) Word has length 125 [2024-12-02 07:46:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:23,671 INFO L225 Difference]: With dead ends: 11889 [2024-12-02 07:46:23,671 INFO L226 Difference]: Without dead ends: 7075 [2024-12-02 07:46:23,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:46:23,674 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 114 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:23,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 587 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7075 states. [2024-12-02 07:46:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7075 to 7043. [2024-12-02 07:46:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 1.4609485941493894) internal successors, (10288), 7042 states have internal predecessors, (10288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 10288 transitions. [2024-12-02 07:46:23,731 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 10288 transitions. Word has length 125 [2024-12-02 07:46:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:23,731 INFO L471 AbstractCegarLoop]: Abstraction has 7043 states and 10288 transitions. [2024-12-02 07:46:23,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 10288 transitions. [2024-12-02 07:46:23,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 07:46:23,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:23,731 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:23,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 07:46:23,732 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:23,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:23,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2094379857, now seen corresponding path program 1 times [2024-12-02 07:46:23,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:23,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690141368] [2024-12-02 07:46:23,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:23,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:23,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:23,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690141368] [2024-12-02 07:46:23,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690141368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:23,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:23,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:46:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289548507] [2024-12-02 07:46:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:23,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:46:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:23,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:46:23,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:46:23,912 INFO L87 Difference]: Start difference. First operand 7043 states and 10288 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:23,941 INFO L93 Difference]: Finished difference Result 7077 states and 10337 transitions. [2024-12-02 07:46:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:46:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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) Word has length 125 [2024-12-02 07:46:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:23,945 INFO L225 Difference]: With dead ends: 7077 [2024-12-02 07:46:23,945 INFO L226 Difference]: Without dead ends: 7075 [2024-12-02 07:46:23,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:46:23,947 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:23,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7075 states. [2024-12-02 07:46:23,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7075 to 7075. [2024-12-02 07:46:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 7074 states have (on average 1.4540571105456601) internal successors, (10286), 7074 states have internal predecessors, (10286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 10286 transitions. [2024-12-02 07:46:23,994 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 10286 transitions. Word has length 125 [2024-12-02 07:46:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:23,994 INFO L471 AbstractCegarLoop]: Abstraction has 7075 states and 10286 transitions. [2024-12-02 07:46:23,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 10286 transitions. [2024-12-02 07:46:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 07:46:23,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:23,995 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:23,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 07:46:23,995 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:23,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash -154878523, now seen corresponding path program 1 times [2024-12-02 07:46:23,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:23,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496690843] [2024-12-02 07:46:23,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:23,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:24,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496690843] [2024-12-02 07:46:24,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496690843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:24,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:24,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:46:24,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344938206] [2024-12-02 07:46:24,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:24,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:46:24,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:24,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:46:24,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:46:24,835 INFO L87 Difference]: Start difference. First operand 7075 states and 10286 transitions. Second operand has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:26,374 INFO L93 Difference]: Finished difference Result 22626 states and 33021 transitions. [2024-12-02 07:46:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 07:46:26,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 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) Word has length 125 [2024-12-02 07:46:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:26,386 INFO L225 Difference]: With dead ends: 22626 [2024-12-02 07:46:26,386 INFO L226 Difference]: Without dead ends: 20906 [2024-12-02 07:46:26,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=269, Invalid=1063, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:46:26,391 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1173 mSDsluCounter, 4264 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:26,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 4716 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:46:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20906 states. [2024-12-02 07:46:26,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20906 to 7049. [2024-12-02 07:46:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7049 states, 7048 states have (on average 1.4550227014755959) internal successors, (10255), 7048 states have internal predecessors, (10255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 10255 transitions. [2024-12-02 07:46:26,502 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 10255 transitions. Word has length 125 [2024-12-02 07:46:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:26,502 INFO L471 AbstractCegarLoop]: Abstraction has 7049 states and 10255 transitions. [2024-12-02 07:46:26,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.944444444444445) internal successors, (125), 18 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 10255 transitions. [2024-12-02 07:46:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:26,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:26,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:26,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 07:46:26,515 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:26,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -636702584, now seen corresponding path program 1 times [2024-12-02 07:46:26,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:26,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363429374] [2024-12-02 07:46:26,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:26,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:26,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:26,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363429374] [2024-12-02 07:46:26,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363429374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:26,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:26,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:26,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952699348] [2024-12-02 07:46:26,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:26,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:26,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:26,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:26,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:26,616 INFO L87 Difference]: Start difference. First operand 7049 states and 10255 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:26,653 INFO L93 Difference]: Finished difference Result 14545 states and 21238 transitions. [2024-12-02 07:46:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:26,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:26,659 INFO L225 Difference]: With dead ends: 14545 [2024-12-02 07:46:26,659 INFO L226 Difference]: Without dead ends: 9698 [2024-12-02 07:46:26,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:26,663 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 107 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:26,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 535 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2024-12-02 07:46:26,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 9420. [2024-12-02 07:46:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9420 states, 9419 states have (on average 1.4541883427115405) internal successors, (13697), 9419 states have internal predecessors, (13697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 13697 transitions. [2024-12-02 07:46:26,734 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 13697 transitions. Word has length 161 [2024-12-02 07:46:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:26,735 INFO L471 AbstractCegarLoop]: Abstraction has 9420 states and 13697 transitions. [2024-12-02 07:46:26,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 13697 transitions. [2024-12-02 07:46:26,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:26,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:26,736 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:26,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 07:46:26,736 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:26,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:26,736 INFO L85 PathProgramCache]: Analyzing trace with hash -577368140, now seen corresponding path program 1 times [2024-12-02 07:46:26,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:26,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409381548] [2024-12-02 07:46:26,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:26,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:26,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409381548] [2024-12-02 07:46:26,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409381548] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:26,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:26,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:26,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214507609] [2024-12-02 07:46:26,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:26,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:46:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:26,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:46:26,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:46:26,854 INFO L87 Difference]: Start difference. First operand 9420 states and 13697 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:27,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:27,165 INFO L93 Difference]: Finished difference Result 40092 states and 58839 transitions. [2024-12-02 07:46:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:46:27,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:27,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:27,190 INFO L225 Difference]: With dead ends: 40092 [2024-12-02 07:46:27,191 INFO L226 Difference]: Without dead ends: 30828 [2024-12-02 07:46:27,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:27,199 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1416 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:27,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 488 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30828 states. [2024-12-02 07:46:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30828 to 20002. [2024-12-02 07:46:27,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20002 states, 20001 states have (on average 1.4535773211339433) internal successors, (29073), 20001 states have internal predecessors, (29073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20002 states to 20002 states and 29073 transitions. [2024-12-02 07:46:27,436 INFO L78 Accepts]: Start accepts. Automaton has 20002 states and 29073 transitions. Word has length 161 [2024-12-02 07:46:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 20002 states and 29073 transitions. [2024-12-02 07:46:27,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 20002 states and 29073 transitions. [2024-12-02 07:46:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:27,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:27,438 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:27,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 07:46:27,438 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:27,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:27,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1637546944, now seen corresponding path program 1 times [2024-12-02 07:46:27,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:27,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546568843] [2024-12-02 07:46:27,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:27,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:27,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546568843] [2024-12-02 07:46:27,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546568843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:27,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:27,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:27,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020112750] [2024-12-02 07:46:27,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:27,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:46:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:27,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:46:27,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:46:27,550 INFO L87 Difference]: Start difference. First operand 20002 states and 29073 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:27,925 INFO L93 Difference]: Finished difference Result 78702 states and 115131 transitions. [2024-12-02 07:46:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:46:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:27,958 INFO L225 Difference]: With dead ends: 78702 [2024-12-02 07:46:27,959 INFO L226 Difference]: Without dead ends: 58856 [2024-12-02 07:46:27,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:27,969 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1331 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:27,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 486 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58856 states. [2024-12-02 07:46:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58856 to 42486. [2024-12-02 07:46:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42486 states, 42485 states have (on average 1.451641755913852) internal successors, (61673), 42485 states have internal predecessors, (61673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42486 states to 42486 states and 61673 transitions. [2024-12-02 07:46:28,411 INFO L78 Accepts]: Start accepts. Automaton has 42486 states and 61673 transitions. Word has length 161 [2024-12-02 07:46:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:28,411 INFO L471 AbstractCegarLoop]: Abstraction has 42486 states and 61673 transitions. [2024-12-02 07:46:28,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 42486 states and 61673 transitions. [2024-12-02 07:46:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:28,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:28,413 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:28,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 07:46:28,413 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:28,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash -61197795, now seen corresponding path program 1 times [2024-12-02 07:46:28,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:28,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456376586] [2024-12-02 07:46:28,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:28,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:28,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:28,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456376586] [2024-12-02 07:46:28,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456376586] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:28,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:28,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:28,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102170267] [2024-12-02 07:46:28,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:28,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:46:28,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:28,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:46:28,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:46:28,602 INFO L87 Difference]: Start difference. First operand 42486 states and 61673 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:29,080 INFO L93 Difference]: Finished difference Result 154602 states and 225339 transitions. [2024-12-02 07:46:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:46:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:29,161 INFO L225 Difference]: With dead ends: 154602 [2024-12-02 07:46:29,161 INFO L226 Difference]: Without dead ends: 112272 [2024-12-02 07:46:29,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:29,194 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1246 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:29,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 484 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112272 states. [2024-12-02 07:46:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112272 to 90094. [2024-12-02 07:46:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90094 states, 90093 states have (on average 1.4492690886084378) internal successors, (130569), 90093 states have internal predecessors, (130569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90094 states to 90094 states and 130569 transitions. [2024-12-02 07:46:30,184 INFO L78 Accepts]: Start accepts. Automaton has 90094 states and 130569 transitions. Word has length 161 [2024-12-02 07:46:30,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:30,184 INFO L471 AbstractCegarLoop]: Abstraction has 90094 states and 130569 transitions. [2024-12-02 07:46:30,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:30,184 INFO L276 IsEmpty]: Start isEmpty. Operand 90094 states and 130569 transitions. [2024-12-02 07:46:30,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:30,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:30,185 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:30,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 07:46:30,185 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:30,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash 415929941, now seen corresponding path program 1 times [2024-12-02 07:46:30,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:30,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040678062] [2024-12-02 07:46:30,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:30,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:30,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:30,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040678062] [2024-12-02 07:46:30,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040678062] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:46:30,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478605021] [2024-12-02 07:46:30,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:30,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:46:30,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:46:30,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:46:30,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:46:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:30,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:46:30,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:31,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:46:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478605021] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:46:31,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:46:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 07:46:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801911148] [2024-12-02 07:46:31,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:46:31,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:46:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:31,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:46:31,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:46:31,409 INFO L87 Difference]: Start difference. First operand 90094 states and 130569 transitions. Second operand has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:32,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:32,365 INFO L93 Difference]: Finished difference Result 282642 states and 409323 transitions. [2024-12-02 07:46:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:46:32,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 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) Word has length 161 [2024-12-02 07:46:32,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:32,572 INFO L225 Difference]: With dead ends: 282642 [2024-12-02 07:46:32,572 INFO L226 Difference]: Without dead ends: 192704 [2024-12-02 07:46:32,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 312 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:46:32,639 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1319 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:32,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 806 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:46:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192704 states. [2024-12-02 07:46:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192704 to 187422. [2024-12-02 07:46:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187422 states, 187421 states have (on average 1.4431307057373506) internal successors, (270473), 187421 states have internal predecessors, (270473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187422 states to 187422 states and 270473 transitions. [2024-12-02 07:46:34,953 INFO L78 Accepts]: Start accepts. Automaton has 187422 states and 270473 transitions. Word has length 161 [2024-12-02 07:46:34,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:34,954 INFO L471 AbstractCegarLoop]: Abstraction has 187422 states and 270473 transitions. [2024-12-02 07:46:34,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.09090909090909) internal successors, (287), 10 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 187422 states and 270473 transitions. [2024-12-02 07:46:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:34,956 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:34,956 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:34,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:46:35,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:46:35,157 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:35,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1457401507, now seen corresponding path program 1 times [2024-12-02 07:46:35,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471526011] [2024-12-02 07:46:35,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:35,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:35,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:35,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471526011] [2024-12-02 07:46:35,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471526011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:35,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:35,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:35,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959691006] [2024-12-02 07:46:35,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:35,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:46:35,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:35,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:46:35,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:46:35,378 INFO L87 Difference]: Start difference. First operand 187422 states and 270473 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:37,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:37,145 INFO L93 Difference]: Finished difference Result 622146 states and 899787 transitions. [2024-12-02 07:46:37,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:46:37,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:37,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:37,727 INFO L225 Difference]: With dead ends: 622146 [2024-12-02 07:46:37,727 INFO L226 Difference]: Without dead ends: 434880 [2024-12-02 07:46:37,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:46:37,780 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1161 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:37,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 482 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:46:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434880 states. [2024-12-02 07:46:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434880 to 395806. [2024-12-02 07:46:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395806 states, 395805 states have (on average 1.4409747224011824) internal successors, (570345), 395805 states have internal predecessors, (570345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395806 states to 395806 states and 570345 transitions. [2024-12-02 07:46:42,727 INFO L78 Accepts]: Start accepts. Automaton has 395806 states and 570345 transitions. Word has length 161 [2024-12-02 07:46:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:42,727 INFO L471 AbstractCegarLoop]: Abstraction has 395806 states and 570345 transitions. [2024-12-02 07:46:42,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 395806 states and 570345 transitions. [2024-12-02 07:46:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 07:46:42,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:42,731 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:42,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 07:46:42,731 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:42,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash 534997387, now seen corresponding path program 1 times [2024-12-02 07:46:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440460812] [2024-12-02 07:46:42,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:42,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:42,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440460812] [2024-12-02 07:46:42,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440460812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:42,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:42,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:46:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859891029] [2024-12-02 07:46:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:42,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:46:42,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:42,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:46:42,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:46:42,890 INFO L87 Difference]: Start difference. First operand 395806 states and 570345 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:45,638 INFO L93 Difference]: Finished difference Result 896805 states and 1293297 transitions. [2024-12-02 07:46:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:46:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 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) Word has length 161 [2024-12-02 07:46:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:46,423 INFO L225 Difference]: With dead ends: 896805 [2024-12-02 07:46:46,423 INFO L226 Difference]: Without dead ends: 501155 [2024-12-02 07:46:46,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:46:46,502 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 1012 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:46,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 617 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:46:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501155 states. [2024-12-02 07:46:50,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501155 to 415399. [2024-12-02 07:46:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415399 states, 415398 states have (on average 1.4358976210766543) internal successors, (596469), 415398 states have internal predecessors, (596469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415399 states to 415399 states and 596469 transitions. [2024-12-02 07:46:52,016 INFO L78 Accepts]: Start accepts. Automaton has 415399 states and 596469 transitions. Word has length 161 [2024-12-02 07:46:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:52,016 INFO L471 AbstractCegarLoop]: Abstraction has 415399 states and 596469 transitions. [2024-12-02 07:46:52,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 415399 states and 596469 transitions. [2024-12-02 07:46:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:46:52,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:52,081 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:52,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 07:46:52,081 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:52,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1800447511, now seen corresponding path program 1 times [2024-12-02 07:46:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:52,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863946048] [2024-12-02 07:46:52,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:52,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 07:46:52,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:52,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863946048] [2024-12-02 07:46:52,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863946048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:52,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:52,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:52,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035753825] [2024-12-02 07:46:52,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:52,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:52,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:52,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:52,264 INFO L87 Difference]: Start difference. First operand 415399 states and 596469 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:54,469 INFO L93 Difference]: Finished difference Result 808363 states and 1158839 transitions. [2024-12-02 07:46:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:54,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) Word has length 196 [2024-12-02 07:46:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:55,322 INFO L225 Difference]: With dead ends: 808363 [2024-12-02 07:46:55,323 INFO L226 Difference]: Without dead ends: 393126 [2024-12-02 07:46:55,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:55,433 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 103 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:55,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 524 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:46:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393126 states. [2024-12-02 07:46:59,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393126 to 386590. [2024-12-02 07:46:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386590 states, 386589 states have (on average 1.42715131573842) internal successors, (551721), 386589 states have internal predecessors, (551721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386590 states to 386590 states and 551721 transitions. [2024-12-02 07:46:59,982 INFO L78 Accepts]: Start accepts. Automaton has 386590 states and 551721 transitions. Word has length 196 [2024-12-02 07:46:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:59,982 INFO L471 AbstractCegarLoop]: Abstraction has 386590 states and 551721 transitions. [2024-12-02 07:46:59,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 386590 states and 551721 transitions. [2024-12-02 07:47:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:47:00,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:00,014 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:00,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 07:47:00,014 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:00,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:00,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1135874733, now seen corresponding path program 1 times [2024-12-02 07:47:00,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:00,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995046760] [2024-12-02 07:47:00,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:00,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 07:47:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995046760] [2024-12-02 07:47:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995046760] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:00,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553982950] [2024-12-02 07:47:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:00,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:47:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:00,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:47:00,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:00,150 INFO L87 Difference]: Start difference. First operand 386590 states and 551721 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:02,411 INFO L93 Difference]: Finished difference Result 750850 states and 1069483 transitions. [2024-12-02 07:47:02,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:47:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) Word has length 197 [2024-12-02 07:47:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:02,829 INFO L225 Difference]: With dead ends: 750850 [2024-12-02 07:47:02,829 INFO L226 Difference]: Without dead ends: 364416 [2024-12-02 07:47:02,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:02,930 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 97 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:02,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 525 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364416 states. [2024-12-02 07:47:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364416 to 358078. [2024-12-02 07:47:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358078 states, 358077 states have (on average 1.4169270855151266) internal successors, (507369), 358077 states have internal predecessors, (507369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358078 states to 358078 states and 507369 transitions. [2024-12-02 07:47:07,208 INFO L78 Accepts]: Start accepts. Automaton has 358078 states and 507369 transitions. Word has length 197 [2024-12-02 07:47:07,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:07,208 INFO L471 AbstractCegarLoop]: Abstraction has 358078 states and 507369 transitions. [2024-12-02 07:47:07,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 358078 states and 507369 transitions. [2024-12-02 07:47:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:47:07,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:07,256 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:07,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 07:47:07,256 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:07,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 597263004, now seen corresponding path program 1 times [2024-12-02 07:47:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:07,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215063804] [2024-12-02 07:47:07,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-02 07:47:07,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:07,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215063804] [2024-12-02 07:47:07,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215063804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:07,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:07,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:07,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458678831] [2024-12-02 07:47:07,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:07,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:47:07,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:07,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:47:07,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:07,425 INFO L87 Difference]: Start difference. First operand 358078 states and 507369 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:09,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:09,138 INFO L93 Difference]: Finished difference Result 693826 states and 980779 transitions. [2024-12-02 07:47:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:47:09,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) Word has length 198 [2024-12-02 07:47:09,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:09,471 INFO L225 Difference]: With dead ends: 693826 [2024-12-02 07:47:09,471 INFO L226 Difference]: Without dead ends: 335904 [2024-12-02 07:47:09,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:09,597 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 90 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:09,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335904 states. [2024-12-02 07:47:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335904 to 329566. [2024-12-02 07:47:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329566 states, 329565 states have (on average 1.404933776341541) internal successors, (463017), 329565 states have internal predecessors, (463017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:13,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329566 states to 329566 states and 463017 transitions. [2024-12-02 07:47:13,650 INFO L78 Accepts]: Start accepts. Automaton has 329566 states and 463017 transitions. Word has length 198 [2024-12-02 07:47:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:13,650 INFO L471 AbstractCegarLoop]: Abstraction has 329566 states and 463017 transitions. [2024-12-02 07:47:13,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 329566 states and 463017 transitions. [2024-12-02 07:47:13,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 07:47:13,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:13,669 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:13,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 07:47:13,670 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:13,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:13,670 INFO L85 PathProgramCache]: Analyzing trace with hash 195432902, now seen corresponding path program 1 times [2024-12-02 07:47:13,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:13,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909459792] [2024-12-02 07:47:13,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:13,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 07:47:13,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909459792] [2024-12-02 07:47:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909459792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:13,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:13,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841446140] [2024-12-02 07:47:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:13,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:47:13,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:13,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:47:13,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:13,781 INFO L87 Difference]: Start difference. First operand 329566 states and 463017 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:15,276 INFO L93 Difference]: Finished difference Result 636802 states and 892075 transitions. [2024-12-02 07:47:15,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:47:15,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) Word has length 199 [2024-12-02 07:47:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:15,595 INFO L225 Difference]: With dead ends: 636802 [2024-12-02 07:47:15,595 INFO L226 Difference]: Without dead ends: 307392 [2024-12-02 07:47:15,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:15,702 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 83 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:15,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307392 states. [2024-12-02 07:47:18,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307392 to 301054. [2024-12-02 07:47:18,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301054 states, 301053 states have (on average 1.3906687526780999) internal successors, (418665), 301053 states have internal predecessors, (418665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301054 states to 301054 states and 418665 transitions. [2024-12-02 07:47:18,987 INFO L78 Accepts]: Start accepts. Automaton has 301054 states and 418665 transitions. Word has length 199 [2024-12-02 07:47:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:18,988 INFO L471 AbstractCegarLoop]: Abstraction has 301054 states and 418665 transitions. [2024-12-02 07:47:18,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:18,988 INFO L276 IsEmpty]: Start isEmpty. Operand 301054 states and 418665 transitions. [2024-12-02 07:47:19,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 07:47:19,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:19,002 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:19,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 07:47:19,002 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -134572919, now seen corresponding path program 1 times [2024-12-02 07:47:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925808665] [2024-12-02 07:47:19,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 07:47:19,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:19,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925808665] [2024-12-02 07:47:19,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925808665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:19,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:19,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:19,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129861845] [2024-12-02 07:47:19,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:19,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:47:19,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:19,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:47:19,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:19,166 INFO L87 Difference]: Start difference. First operand 301054 states and 418665 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:20,593 INFO L93 Difference]: Finished difference Result 582946 states and 808651 transitions. [2024-12-02 07:47:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:47:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) Word has length 200 [2024-12-02 07:47:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:20,849 INFO L225 Difference]: With dead ends: 582946 [2024-12-02 07:47:20,849 INFO L226 Difference]: Without dead ends: 282048 [2024-12-02 07:47:20,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:20,963 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 76 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:20,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 528 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282048 states. [2024-12-02 07:47:23,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282048 to 275710. [2024-12-02 07:47:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275710 states, 275709 states have (on average 1.3767885705580885) internal successors, (379593), 275709 states have internal predecessors, (379593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275710 states to 275710 states and 379593 transitions. [2024-12-02 07:47:24,235 INFO L78 Accepts]: Start accepts. Automaton has 275710 states and 379593 transitions. Word has length 200 [2024-12-02 07:47:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:24,235 INFO L471 AbstractCegarLoop]: Abstraction has 275710 states and 379593 transitions. [2024-12-02 07:47:24,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 275710 states and 379593 transitions. [2024-12-02 07:47:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 07:47:24,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:24,247 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:24,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 07:47:24,247 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:24,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1704315321, now seen corresponding path program 1 times [2024-12-02 07:47:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:24,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192505744] [2024-12-02 07:47:24,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 07:47:24,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:24,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192505744] [2024-12-02 07:47:24,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192505744] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:24,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:24,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314688477] [2024-12-02 07:47:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:24,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:47:24,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:24,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:47:24,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:24,385 INFO L87 Difference]: Start difference. First operand 275710 states and 379593 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:47:25,739 INFO L93 Difference]: Finished difference Result 551266 states and 759019 transitions. [2024-12-02 07:47:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:47:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) Word has length 201 [2024-12-02 07:47:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:47:25,984 INFO L225 Difference]: With dead ends: 551266 [2024-12-02 07:47:25,984 INFO L226 Difference]: Without dead ends: 275712 [2024-12-02 07:47:26,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:47:26,092 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 76 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:47:26,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 528 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:47:26,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275712 states. [2024-12-02 07:47:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275712 to 269374. [2024-12-02 07:47:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269374 states, 269373 states have (on average 1.3699702642803844) internal successors, (369033), 269373 states have internal predecessors, (369033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269374 states to 269374 states and 369033 transitions. [2024-12-02 07:47:29,173 INFO L78 Accepts]: Start accepts. Automaton has 269374 states and 369033 transitions. Word has length 201 [2024-12-02 07:47:29,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:47:29,173 INFO L471 AbstractCegarLoop]: Abstraction has 269374 states and 369033 transitions. [2024-12-02 07:47:29,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 269374 states and 369033 transitions. [2024-12-02 07:47:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 07:47:29,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:47:29,177 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:29,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 07:47:29,178 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:47:29,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash 779241247, now seen corresponding path program 1 times [2024-12-02 07:47:29,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:29,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056230684] [2024-12-02 07:47:29,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:29,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056230684] [2024-12-02 07:47:29,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056230684] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:47:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967287637] [2024-12-02 07:47:29,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:29,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:47:29,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:47:29,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:47:29,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fad952c-37e3-4c75-bfbf-54cb4f90117e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:47:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:29,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:47:29,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:30,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:47:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:33,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967287637] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:47:33,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:47:33,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 27 [2024-12-02 07:47:33,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468140051] [2024-12-02 07:47:33,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:47:33,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 07:47:33,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:33,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 07:47:33,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:47:33,992 INFO L87 Difference]: Start difference. First operand 269374 states and 369033 transitions. Second operand has 28 states, 28 states have (on average 19.857142857142858) internal successors, (556), 27 states have internal predecessors, (556), 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)