./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC --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 a10c9e6583b7bb9620d063f223dce3a6f04929588e6f4ac23db6236ec494c7b2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:43:52,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:43:52,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:43:52,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:43:52,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:43:52,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:43:52,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:43:52,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:43:52,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:43:52,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:43:52,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:43:52,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:43:52,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:43:52,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:43:52,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:43:52,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:43:52,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:43:52,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:43:52,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:43:52,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:43:52,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:43:52,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:43:52,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:43:52,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:43:52,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:43:52,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:43:52,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:43:52,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:43:52,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:43:52,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:43:52,277 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_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC 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 -> a10c9e6583b7bb9620d063f223dce3a6f04929588e6f4ac23db6236ec494c7b2 [2024-11-24 01:43:52,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:43:52,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:43:52,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:43:52,619 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:43:52,619 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:43:52,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2024-11-24 01:43:55,676 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/data/6281fe26b/126ce596789047d1800b9ae75f941aec/FLAG98840a965 [2024-11-24 01:43:56,109 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:43:56,111 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2024-11-24 01:43:56,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/data/6281fe26b/126ce596789047d1800b9ae75f941aec/FLAG98840a965 [2024-11-24 01:43:56,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/data/6281fe26b/126ce596789047d1800b9ae75f941aec [2024-11-24 01:43:56,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:43:56,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:43:56,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:43:56,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:43:56,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:43:56,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5861b7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56, skipping insertion in model container [2024-11-24 01:43:56,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:43:56,508 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_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c[14521,14534] [2024-11-24 01:43:56,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:43:56,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:43:56,584 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_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c[14521,14534] [2024-11-24 01:43:56,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:43:56,601 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:43:56,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56 WrapperNode [2024-11-24 01:43:56,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:43:56,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:43:56,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:43:56,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:43:56,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,667 INFO L138 Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 497 [2024-11-24 01:43:56,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:43:56,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:43:56,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:43:56,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:43:56,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,715 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]. [2024-11-24 01:43:56,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,725 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:43:56,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:43:56,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:43:56,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:43:56,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (1/1) ... [2024-11-24 01:43:56,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:43:56,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:43:56,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:43:56,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b5f2e84-d94e-44cd-83fc-67ee908b6d6c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:43:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:43:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:43:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:43:56,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:43:56,955 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:43:56,957 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:43:57,796 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-24 01:43:57,797 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:43:57,811 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:43:57,811 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:43:57,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:43:57 BoogieIcfgContainer [2024-11-24 01:43:57,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:43:57,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:43:57,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:43:57,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:43:57,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:43:56" (1/3) ... [2024-11-24 01:43:57,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52187db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:43:57, skipping insertion in model container [2024-11-24 01:43:57,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:43:56" (2/3) ... [2024-11-24 01:43:57,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52187db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:43:57, skipping insertion in model container [2024-11-24 01:43:57,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:43:57" (3/3) ... [2024-11-24 01:43:57,822 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c [2024-11-24 01:43:57,839 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:43:57,844 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c that has 1 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:43:57,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:43:57,950 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;@26499a77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:43:57,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:43:57,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-24 01:43:57,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:57,968 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] [2024-11-24 01:43:57,968 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:57,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:57,975 INFO L85 PathProgramCache]: Analyzing trace with hash 395135632, now seen corresponding path program 1 times [2024-11-24 01:43:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579970641] [2024-11-24 01:43:57,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:57,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:43:58,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579970641] [2024-11-24 01:43:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579970641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:43:58,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867920346] [2024-11-24 01:43:58,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:58,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:43:58,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:58,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:43:58,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:43:58,461 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 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 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:58,495 INFO L93 Difference]: Finished difference Result 211 states and 367 transitions. [2024-11-24 01:43:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:43:58,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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 37 [2024-11-24 01:43:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:58,510 INFO L225 Difference]: With dead ends: 211 [2024-11-24 01:43:58,510 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 01:43:58,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:43:58,518 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:58,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:43:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 01:43:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-24 01:43:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.7575757575757576) internal successors, (232), 132 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:58,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 232 transitions. [2024-11-24 01:43:58,555 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 232 transitions. Word has length 37 [2024-11-24 01:43:58,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:58,555 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 232 transitions. [2024-11-24 01:43:58,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 232 transitions. [2024-11-24 01:43:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-24 01:43:58,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:58,557 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] [2024-11-24 01:43:58,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:43:58,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:58,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash -422512818, now seen corresponding path program 1 times [2024-11-24 01:43:58,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846820286] [2024-11-24 01:43:58,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:43:58,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:58,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846820286] [2024-11-24 01:43:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846820286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:43:58,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978171101] [2024-11-24 01:43:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:58,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:43:58,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:58,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:43:58,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:43:58,991 INFO L87 Difference]: Start difference. First operand 133 states and 232 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:59,172 INFO L93 Difference]: Finished difference Result 210 states and 360 transitions. [2024-11-24 01:43:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:43:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2024-11-24 01:43:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:59,175 INFO L225 Difference]: With dead ends: 210 [2024-11-24 01:43:59,175 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 01:43:59,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:43:59,177 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:59,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:43:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 01:43:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-24 01:43:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 132 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 202 transitions. [2024-11-24 01:43:59,199 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 202 transitions. Word has length 37 [2024-11-24 01:43:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:59,199 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 202 transitions. [2024-11-24 01:43:59,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions. [2024-11-24 01:43:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-24 01:43:59,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:59,206 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] [2024-11-24 01:43:59,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:43:59,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:59,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1398422292, now seen corresponding path program 1 times [2024-11-24 01:43:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697903849] [2024-11-24 01:43:59,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:59,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:43:59,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:43:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697903849] [2024-11-24 01:43:59,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697903849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:43:59,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:43:59,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:43:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021186539] [2024-11-24 01:43:59,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:43:59,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:43:59,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:43:59,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:43:59,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:43:59,568 INFO L87 Difference]: Start difference. First operand 133 states and 202 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:59,660 INFO L93 Difference]: Finished difference Result 269 states and 432 transitions. [2024-11-24 01:43:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:43:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2024-11-24 01:43:59,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:59,664 INFO L225 Difference]: With dead ends: 269 [2024-11-24 01:43:59,664 INFO L226 Difference]: Without dead ends: 196 [2024-11-24 01:43:59,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:43:59,665 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:59,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 352 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:43:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-24 01:43:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2024-11-24 01:43:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 300 transitions. [2024-11-24 01:43:59,694 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 300 transitions. Word has length 66 [2024-11-24 01:43:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:59,694 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 300 transitions. [2024-11-24 01:43:59,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:43:59,694 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 300 transitions. [2024-11-24 01:43:59,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 01:43:59,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:59,696 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] [2024-11-24 01:43:59,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:43:59,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:59,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1852534978, now seen corresponding path program 1 times [2024-11-24 01:43:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:59,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130055675] [2024-11-24 01:43:59,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:43:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:43:59,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:00,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130055675] [2024-11-24 01:44:00,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130055675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:00,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948941987] [2024-11-24 01:44:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:00,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:00,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:00,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:00,003 INFO L87 Difference]: Start difference. First operand 193 states and 300 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:00,072 INFO L93 Difference]: Finished difference Result 443 states and 716 transitions. [2024-11-24 01:44:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:00,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-11-24 01:44:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:00,076 INFO L225 Difference]: With dead ends: 443 [2024-11-24 01:44:00,078 INFO L226 Difference]: Without dead ends: 310 [2024-11-24 01:44:00,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:00,081 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 99 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:00,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 365 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-24 01:44:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306. [2024-11-24 01:44:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.5967213114754097) internal successors, (487), 305 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 487 transitions. [2024-11-24 01:44:00,117 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 487 transitions. Word has length 68 [2024-11-24 01:44:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:00,117 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 487 transitions. [2024-11-24 01:44:00,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 487 transitions. [2024-11-24 01:44:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 01:44:00,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:00,122 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] [2024-11-24 01:44:00,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:44:00,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:00,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1172652176, now seen corresponding path program 1 times [2024-11-24 01:44:00,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:00,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281553461] [2024-11-24 01:44:00,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:00,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:00,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:00,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281553461] [2024-11-24 01:44:00,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281553461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:00,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:00,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:00,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560599672] [2024-11-24 01:44:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:00,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:00,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:00,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:00,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:00,375 INFO L87 Difference]: Start difference. First operand 306 states and 487 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:00,448 INFO L93 Difference]: Finished difference Result 766 states and 1249 transitions. [2024-11-24 01:44:00,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:00,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-11-24 01:44:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:00,452 INFO L225 Difference]: With dead ends: 766 [2024-11-24 01:44:00,452 INFO L226 Difference]: Without dead ends: 520 [2024-11-24 01:44:00,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:00,456 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 93 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:00,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-24 01:44:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 514. [2024-11-24 01:44:00,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 1.612085769980507) internal successors, (827), 513 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 827 transitions. [2024-11-24 01:44:00,501 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 827 transitions. Word has length 70 [2024-11-24 01:44:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:00,503 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 827 transitions. [2024-11-24 01:44:00,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 827 transitions. [2024-11-24 01:44:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 01:44:00,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:00,505 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] [2024-11-24 01:44:00,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:44:00,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash 648029982, now seen corresponding path program 1 times [2024-11-24 01:44:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:00,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039985125] [2024-11-24 01:44:00,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:00,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:00,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:00,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039985125] [2024-11-24 01:44:00,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039985125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:00,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:00,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442759434] [2024-11-24 01:44:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:00,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:00,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:00,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:00,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:00,740 INFO L87 Difference]: Start difference. First operand 514 states and 827 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:01,041 INFO L93 Difference]: Finished difference Result 2190 states and 3633 transitions. [2024-11-24 01:44:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:44:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2024-11-24 01:44:01,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:01,055 INFO L225 Difference]: With dead ends: 2190 [2024-11-24 01:44:01,056 INFO L226 Difference]: Without dead ends: 1736 [2024-11-24 01:44:01,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:44:01,062 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 812 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:01,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1144 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:44:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-24 01:44:01,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 912. [2024-11-24 01:44:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 911 states have (on average 1.628979143798024) internal successors, (1484), 911 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1484 transitions. [2024-11-24 01:44:01,154 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1484 transitions. Word has length 72 [2024-11-24 01:44:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:01,154 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1484 transitions. [2024-11-24 01:44:01,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1484 transitions. [2024-11-24 01:44:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 01:44:01,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:01,158 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] [2024-11-24 01:44:01,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:44:01,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:01,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 986227649, now seen corresponding path program 1 times [2024-11-24 01:44:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942674882] [2024-11-24 01:44:01,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:01,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:01,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:01,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942674882] [2024-11-24 01:44:01,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942674882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:01,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:01,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:01,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775351793] [2024-11-24 01:44:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:01,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:01,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:01,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:01,349 INFO L87 Difference]: Start difference. First operand 912 states and 1484 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:01,486 INFO L93 Difference]: Finished difference Result 2654 states and 4394 transitions. [2024-11-24 01:44:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:01,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 73 [2024-11-24 01:44:01,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:01,493 INFO L225 Difference]: With dead ends: 2654 [2024-11-24 01:44:01,494 INFO L226 Difference]: Without dead ends: 1802 [2024-11-24 01:44:01,495 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 [2024-11-24 01:44:01,496 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 359 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:01,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 578 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-24 01:44:01,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1348. [2024-11-24 01:44:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1347 states have (on average 1.6384558277654047) internal successors, (2207), 1347 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2207 transitions. [2024-11-24 01:44:01,560 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2207 transitions. Word has length 73 [2024-11-24 01:44:01,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:01,560 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 2207 transitions. [2024-11-24 01:44:01,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2207 transitions. [2024-11-24 01:44:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 01:44:01,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:01,564 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] [2024-11-24 01:44:01,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:44:01,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:01,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1245542219, now seen corresponding path program 1 times [2024-11-24 01:44:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:01,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573982552] [2024-11-24 01:44:01,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:01,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573982552] [2024-11-24 01:44:01,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573982552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:01,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:01,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:01,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673786214] [2024-11-24 01:44:01,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:01,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:01,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:01,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:01,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:01,755 INFO L87 Difference]: Start difference. First operand 1348 states and 2207 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:01,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:01,931 INFO L93 Difference]: Finished difference Result 3908 states and 6458 transitions. [2024-11-24 01:44:01,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:01,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 74 [2024-11-24 01:44:01,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:01,944 INFO L225 Difference]: With dead ends: 3908 [2024-11-24 01:44:01,944 INFO L226 Difference]: Without dead ends: 2620 [2024-11-24 01:44:01,948 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 [2024-11-24 01:44:01,950 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:01,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 652 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2024-11-24 01:44:02,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1972. [2024-11-24 01:44:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1971 states have (on average 1.637239979705733) internal successors, (3227), 1971 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3227 transitions. [2024-11-24 01:44:02,041 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3227 transitions. Word has length 74 [2024-11-24 01:44:02,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:02,042 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 3227 transitions. [2024-11-24 01:44:02,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3227 transitions. [2024-11-24 01:44:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 01:44:02,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:02,047 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] [2024-11-24 01:44:02,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:44:02,048 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:02,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:02,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1541927048, now seen corresponding path program 1 times [2024-11-24 01:44:02,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:02,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143037350] [2024-11-24 01:44:02,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:02,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143037350] [2024-11-24 01:44:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143037350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:02,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:02,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356663554] [2024-11-24 01:44:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:02,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:02,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:02,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:02,189 INFO L87 Difference]: Start difference. First operand 1972 states and 3227 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:02,385 INFO L93 Difference]: Finished difference Result 5692 states and 9382 transitions. [2024-11-24 01:44:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:02,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2024-11-24 01:44:02,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:02,400 INFO L225 Difference]: With dead ends: 5692 [2024-11-24 01:44:02,400 INFO L226 Difference]: Without dead ends: 3780 [2024-11-24 01:44:02,403 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 [2024-11-24 01:44:02,404 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 355 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:02,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2024-11-24 01:44:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2860. [2024-11-24 01:44:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 1.634487583071004) internal successors, (4673), 2859 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4673 transitions. [2024-11-24 01:44:02,561 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4673 transitions. Word has length 75 [2024-11-24 01:44:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:02,561 INFO L471 AbstractCegarLoop]: Abstraction has 2860 states and 4673 transitions. [2024-11-24 01:44:02,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4673 transitions. [2024-11-24 01:44:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:44:02,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:02,564 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] [2024-11-24 01:44:02,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:44:02,564 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:02,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash 268884983, now seen corresponding path program 1 times [2024-11-24 01:44:02,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:02,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341179407] [2024-11-24 01:44:02,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:02,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:02,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341179407] [2024-11-24 01:44:02,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341179407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:02,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:02,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882517844] [2024-11-24 01:44:02,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:02,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:02,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:02,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:02,660 INFO L87 Difference]: Start difference. First operand 2860 states and 4673 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:02,774 INFO L93 Difference]: Finished difference Result 6550 states and 10704 transitions. [2024-11-24 01:44:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:02,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-24 01:44:02,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:02,792 INFO L225 Difference]: With dead ends: 6550 [2024-11-24 01:44:02,792 INFO L226 Difference]: Without dead ends: 4512 [2024-11-24 01:44:02,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:02,796 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 92 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:02,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 413 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2024-11-24 01:44:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4510. [2024-11-24 01:44:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 4509 states have (on average 1.6185406963850077) internal successors, (7298), 4509 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 7298 transitions. [2024-11-24 01:44:02,962 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 7298 transitions. Word has length 76 [2024-11-24 01:44:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:02,962 INFO L471 AbstractCegarLoop]: Abstraction has 4510 states and 7298 transitions. [2024-11-24 01:44:02,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 7298 transitions. [2024-11-24 01:44:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:44:02,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:02,964 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] [2024-11-24 01:44:02,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:44:02,964 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:02,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1813417673, now seen corresponding path program 1 times [2024-11-24 01:44:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993331617] [2024-11-24 01:44:02,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:03,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:03,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993331617] [2024-11-24 01:44:03,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993331617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:03,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:03,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:03,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708157004] [2024-11-24 01:44:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:03,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:03,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:03,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:03,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:03,053 INFO L87 Difference]: Start difference. First operand 4510 states and 7298 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:03,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:03,201 INFO L93 Difference]: Finished difference Result 9926 states and 16104 transitions. [2024-11-24 01:44:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:03,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-24 01:44:03,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:03,228 INFO L225 Difference]: With dead ends: 9926 [2024-11-24 01:44:03,229 INFO L226 Difference]: Without dead ends: 6732 [2024-11-24 01:44:03,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:03,234 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:03,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2024-11-24 01:44:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 6730. [2024-11-24 01:44:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6730 states, 6729 states have (on average 1.607965522365879) internal successors, (10820), 6729 states have internal predecessors, (10820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 10820 transitions. [2024-11-24 01:44:03,524 INFO L78 Accepts]: Start accepts. Automaton has 6730 states and 10820 transitions. Word has length 76 [2024-11-24 01:44:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:03,524 INFO L471 AbstractCegarLoop]: Abstraction has 6730 states and 10820 transitions. [2024-11-24 01:44:03,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6730 states and 10820 transitions. [2024-11-24 01:44:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:44:03,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:03,525 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] [2024-11-24 01:44:03,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:44:03,526 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:03,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1616320119, now seen corresponding path program 1 times [2024-11-24 01:44:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:03,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216383081] [2024-11-24 01:44:03,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:03,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:03,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:03,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216383081] [2024-11-24 01:44:03,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216383081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:03,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:03,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:03,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786870760] [2024-11-24 01:44:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:03,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:03,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:03,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:03,611 INFO L87 Difference]: Start difference. First operand 6730 states and 10820 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:03,829 INFO L93 Difference]: Finished difference Result 15111 states and 24508 transitions. [2024-11-24 01:44:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-24 01:44:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:03,865 INFO L225 Difference]: With dead ends: 15111 [2024-11-24 01:44:03,865 INFO L226 Difference]: Without dead ends: 10171 [2024-11-24 01:44:03,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:03,873 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:03,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2024-11-24 01:44:04,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169. [2024-11-24 01:44:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10168 states have (on average 1.6009047993705743) internal successors, (16278), 10168 states have internal predecessors, (16278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16278 transitions. [2024-11-24 01:44:04,298 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 16278 transitions. Word has length 76 [2024-11-24 01:44:04,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:04,298 INFO L471 AbstractCegarLoop]: Abstraction has 10169 states and 16278 transitions. [2024-11-24 01:44:04,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 16278 transitions. [2024-11-24 01:44:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:44:04,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:04,303 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] [2024-11-24 01:44:04,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:44:04,303 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:04,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:04,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2139270896, now seen corresponding path program 1 times [2024-11-24 01:44:04,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:04,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107319844] [2024-11-24 01:44:04,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:04,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:04,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:04,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107319844] [2024-11-24 01:44:04,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107319844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:04,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:04,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:04,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994152032] [2024-11-24 01:44:04,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:04,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:04,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:04,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:04,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:04,644 INFO L87 Difference]: Start difference. First operand 10169 states and 16278 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:05,013 INFO L93 Difference]: Finished difference Result 20262 states and 32453 transitions. [2024-11-24 01:44:05,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:44:05,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2024-11-24 01:44:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:05,044 INFO L225 Difference]: With dead ends: 20262 [2024-11-24 01:44:05,044 INFO L226 Difference]: Without dead ends: 10171 [2024-11-24 01:44:05,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:44:05,057 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 283 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:05,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 537 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2024-11-24 01:44:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169. [2024-11-24 01:44:05,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10168 states have (on average 1.5886113296616837) internal successors, (16153), 10168 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16153 transitions. [2024-11-24 01:44:05,522 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 16153 transitions. Word has length 77 [2024-11-24 01:44:05,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:05,523 INFO L471 AbstractCegarLoop]: Abstraction has 10169 states and 16153 transitions. [2024-11-24 01:44:05,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:05,524 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 16153 transitions. [2024-11-24 01:44:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 01:44:05,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:05,525 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] [2024-11-24 01:44:05,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:44:05,525 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:05,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash -297465128, now seen corresponding path program 1 times [2024-11-24 01:44:05,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:05,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749308645] [2024-11-24 01:44:05,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:05,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749308645] [2024-11-24 01:44:05,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749308645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:05,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:05,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:05,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041155384] [2024-11-24 01:44:05,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:05,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:05,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:05,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:05,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:05,814 INFO L87 Difference]: Start difference. First operand 10169 states and 16153 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:06,333 INFO L93 Difference]: Finished difference Result 29138 states and 46435 transitions. [2024-11-24 01:44:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:44:06,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2024-11-24 01:44:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:06,383 INFO L225 Difference]: With dead ends: 29138 [2024-11-24 01:44:06,383 INFO L226 Difference]: Without dead ends: 19047 [2024-11-24 01:44:06,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:44:06,395 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 185 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:06,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 541 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19047 states. [2024-11-24 01:44:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 19045. [2024-11-24 01:44:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19045 states, 19044 states have (on average 1.5750892669607226) internal successors, (29996), 19044 states have internal predecessors, (29996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19045 states to 19045 states and 29996 transitions. [2024-11-24 01:44:06,999 INFO L78 Accepts]: Start accepts. Automaton has 19045 states and 29996 transitions. Word has length 80 [2024-11-24 01:44:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:06,999 INFO L471 AbstractCegarLoop]: Abstraction has 19045 states and 29996 transitions. [2024-11-24 01:44:07,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19045 states and 29996 transitions. [2024-11-24 01:44:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:44:07,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:07,001 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] [2024-11-24 01:44:07,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:44:07,001 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:07,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1060060007, now seen corresponding path program 1 times [2024-11-24 01:44:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925490757] [2024-11-24 01:44:07,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:07,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925490757] [2024-11-24 01:44:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925490757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:07,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:44:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674414073] [2024-11-24 01:44:07,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:07,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:44:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:07,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:44:07,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:44:07,560 INFO L87 Difference]: Start difference. First operand 19045 states and 29996 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:07,862 INFO L93 Difference]: Finished difference Result 20133 states and 31445 transitions. [2024-11-24 01:44:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:44:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 81 [2024-11-24 01:44:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:07,912 INFO L225 Difference]: With dead ends: 20133 [2024-11-24 01:44:07,913 INFO L226 Difference]: Without dead ends: 20131 [2024-11-24 01:44:07,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:44:07,923 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:07,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2024-11-24 01:44:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 20131. [2024-11-24 01:44:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20131 states, 20130 states have (on average 1.5436164927968206) internal successors, (31073), 20130 states have internal predecessors, (31073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20131 states to 20131 states and 31073 transitions. [2024-11-24 01:44:08,499 INFO L78 Accepts]: Start accepts. Automaton has 20131 states and 31073 transitions. Word has length 81 [2024-11-24 01:44:08,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:08,499 INFO L471 AbstractCegarLoop]: Abstraction has 20131 states and 31073 transitions. [2024-11-24 01:44:08,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 20131 states and 31073 transitions. [2024-11-24 01:44:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:44:08,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:08,502 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:08,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:44:08,502 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:08,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:08,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1195435618, now seen corresponding path program 1 times [2024-11-24 01:44:08,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:08,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937604861] [2024-11-24 01:44:08,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 01:44:08,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:08,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937604861] [2024-11-24 01:44:08,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937604861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:08,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:08,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:08,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399625221] [2024-11-24 01:44:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:08,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:08,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:08,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:08,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:08,734 INFO L87 Difference]: Start difference. First operand 20131 states and 31073 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:09,527 INFO L93 Difference]: Finished difference Result 49399 states and 76493 transitions. [2024-11-24 01:44:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:44:09,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 [2024-11-24 01:44:09,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:09,639 INFO L225 Difference]: With dead ends: 49399 [2024-11-24 01:44:09,640 INFO L226 Difference]: Without dead ends: 39817 [2024-11-24 01:44:09,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:44:09,663 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 452 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:09,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 823 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39817 states. [2024-11-24 01:44:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39817 to 31003. [2024-11-24 01:44:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31003 states, 31002 states have (on average 1.5418037545964776) internal successors, (47799), 31002 states have internal predecessors, (47799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31003 states to 31003 states and 47799 transitions. [2024-11-24 01:44:10,738 INFO L78 Accepts]: Start accepts. Automaton has 31003 states and 47799 transitions. Word has length 109 [2024-11-24 01:44:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:10,740 INFO L471 AbstractCegarLoop]: Abstraction has 31003 states and 47799 transitions. [2024-11-24 01:44:10,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:10,740 INFO L276 IsEmpty]: Start isEmpty. Operand 31003 states and 47799 transitions. [2024-11-24 01:44:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:44:10,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:10,742 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:10,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:44:10,742 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:10,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash -886867038, now seen corresponding path program 1 times [2024-11-24 01:44:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649853642] [2024-11-24 01:44:10,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:44:10,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:10,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649853642] [2024-11-24 01:44:10,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649853642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:10,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:10,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:10,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704254664] [2024-11-24 01:44:10,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:10,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:10,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:10,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:10,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:10,965 INFO L87 Difference]: Start difference. First operand 31003 states and 47799 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:11,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:11,546 INFO L93 Difference]: Finished difference Result 53263 states and 82485 transitions. [2024-11-24 01:44:11,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:44:11,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 [2024-11-24 01:44:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:11,819 INFO L225 Difference]: With dead ends: 53263 [2024-11-24 01:44:11,819 INFO L226 Difference]: Without dead ends: 43681 [2024-11-24 01:44:11,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:44:11,831 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 445 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:11,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 947 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43681 states. [2024-11-24 01:44:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43681 to 42075. [2024-11-24 01:44:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42075 states, 42074 states have (on average 1.5423064125112895) internal successors, (64891), 42074 states have internal predecessors, (64891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42075 states to 42075 states and 64891 transitions. [2024-11-24 01:44:12,792 INFO L78 Accepts]: Start accepts. Automaton has 42075 states and 64891 transitions. Word has length 109 [2024-11-24 01:44:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:12,793 INFO L471 AbstractCegarLoop]: Abstraction has 42075 states and 64891 transitions. [2024-11-24 01:44:12,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 42075 states and 64891 transitions. [2024-11-24 01:44:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:44:12,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:12,795 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:12,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:44:12,796 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:12,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1752096542, now seen corresponding path program 1 times [2024-11-24 01:44:12,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:12,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602717571] [2024-11-24 01:44:12,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:12,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:44:12,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602717571] [2024-11-24 01:44:12,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602717571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:12,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:12,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:44:12,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909468107] [2024-11-24 01:44:12,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:12,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:44:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:12,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:44:12,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:44:12,991 INFO L87 Difference]: Start difference. First operand 42075 states and 64891 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:14,066 INFO L93 Difference]: Finished difference Result 59859 states and 92855 transitions. [2024-11-24 01:44:14,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:44:14,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 [2024-11-24 01:44:14,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:14,141 INFO L225 Difference]: With dead ends: 59859 [2024-11-24 01:44:14,141 INFO L226 Difference]: Without dead ends: 50017 [2024-11-24 01:44:14,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:44:14,156 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 440 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:14,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 927 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:14,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50017 states. [2024-11-24 01:44:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50017 to 48411. [2024-11-24 01:44:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48411 states, 48410 states have (on average 1.5449493906217724) internal successors, (74791), 48410 states have internal predecessors, (74791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48411 states to 48411 states and 74791 transitions. [2024-11-24 01:44:15,665 INFO L78 Accepts]: Start accepts. Automaton has 48411 states and 74791 transitions. Word has length 109 [2024-11-24 01:44:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:15,666 INFO L471 AbstractCegarLoop]: Abstraction has 48411 states and 74791 transitions. [2024-11-24 01:44:15,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 48411 states and 74791 transitions. [2024-11-24 01:44:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:44:15,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:15,669 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:44:15,670 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:15,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash 19451263, now seen corresponding path program 1 times [2024-11-24 01:44:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:15,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188150786] [2024-11-24 01:44:15,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:44:15,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:15,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188150786] [2024-11-24 01:44:15,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188150786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:15,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:15,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:15,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819668982] [2024-11-24 01:44:15,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:15,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:15,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:15,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:15,778 INFO L87 Difference]: Start difference. First operand 48411 states and 74791 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) [2024-11-24 01:44:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:16,864 INFO L93 Difference]: Finished difference Result 107187 states and 166366 transitions. [2024-11-24 01:44:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:16,865 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 110 [2024-11-24 01:44:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:16,999 INFO L225 Difference]: With dead ends: 107187 [2024-11-24 01:44:16,999 INFO L226 Difference]: Without dead ends: 78153 [2024-11-24 01:44:17,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:17,029 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 366 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 [2024-11-24 01:44:17,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 366 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78153 states. [2024-11-24 01:44:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78153 to 77948. [2024-11-24 01:44:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77948 states, 77947 states have (on average 1.5465123737924487) internal successors, (120546), 77947 states have internal predecessors, (120546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77948 states to 77948 states and 120546 transitions. [2024-11-24 01:44:19,209 INFO L78 Accepts]: Start accepts. Automaton has 77948 states and 120546 transitions. Word has length 110 [2024-11-24 01:44:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:19,209 INFO L471 AbstractCegarLoop]: Abstraction has 77948 states and 120546 transitions. [2024-11-24 01:44:19,209 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) [2024-11-24 01:44:19,210 INFO L276 IsEmpty]: Start isEmpty. Operand 77948 states and 120546 transitions. [2024-11-24 01:44:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:44:19,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:19,215 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:19,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:44:19,215 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:19,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:19,220 INFO L85 PathProgramCache]: Analyzing trace with hash -403250563, now seen corresponding path program 1 times [2024-11-24 01:44:19,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:19,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170062514] [2024-11-24 01:44:19,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:19,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:44:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170062514] [2024-11-24 01:44:19,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170062514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:19,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:19,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:19,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703272922] [2024-11-24 01:44:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:19,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:19,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:19,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:19,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:19,450 INFO L87 Difference]: Start difference. First operand 77948 states and 120546 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 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) [2024-11-24 01:44:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:21,075 INFO L93 Difference]: Finished difference Result 139209 states and 216195 transitions. [2024-11-24 01:44:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:21,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 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 110 [2024-11-24 01:44:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:21,250 INFO L225 Difference]: With dead ends: 139209 [2024-11-24 01:44:21,251 INFO L226 Difference]: Without dead ends: 106937 [2024-11-24 01:44:21,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:21,282 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 187 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:21,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 673 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106937 states. [2024-11-24 01:44:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106937 to 103676. [2024-11-24 01:44:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103676 states, 103675 states have (on average 1.5447986496262358) internal successors, (160157), 103675 states have internal predecessors, (160157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103676 states to 103676 states and 160157 transitions. [2024-11-24 01:44:23,495 INFO L78 Accepts]: Start accepts. Automaton has 103676 states and 160157 transitions. Word has length 110 [2024-11-24 01:44:23,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:23,495 INFO L471 AbstractCegarLoop]: Abstraction has 103676 states and 160157 transitions. [2024-11-24 01:44:23,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 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) [2024-11-24 01:44:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 103676 states and 160157 transitions. [2024-11-24 01:44:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:44:23,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:23,499 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:23,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:44:23,499 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:23,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:23,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1187171385, now seen corresponding path program 1 times [2024-11-24 01:44:23,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:23,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674857443] [2024-11-24 01:44:23,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:23,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:44:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674857443] [2024-11-24 01:44:23,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674857443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:23,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:23,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893297256] [2024-11-24 01:44:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:23,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:23,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:23,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:23,697 INFO L87 Difference]: Start difference. First operand 103676 states and 160157 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:25,573 INFO L93 Difference]: Finished difference Result 158887 states and 246384 transitions. [2024-11-24 01:44:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:25,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 [2024-11-24 01:44:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:25,752 INFO L225 Difference]: With dead ends: 158887 [2024-11-24 01:44:25,752 INFO L226 Difference]: Without dead ends: 128825 [2024-11-24 01:44:25,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:25,786 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 192 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:25,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 675 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128825 states. [2024-11-24 01:44:28,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128825 to 122437. [2024-11-24 01:44:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122437 states, 122436 states have (on average 1.5437208010715802) internal successors, (189007), 122436 states have internal predecessors, (189007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122437 states to 122437 states and 189007 transitions. [2024-11-24 01:44:28,276 INFO L78 Accepts]: Start accepts. Automaton has 122437 states and 189007 transitions. Word has length 111 [2024-11-24 01:44:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:28,276 INFO L471 AbstractCegarLoop]: Abstraction has 122437 states and 189007 transitions. [2024-11-24 01:44:28,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 122437 states and 189007 transitions. [2024-11-24 01:44:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:44:28,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:28,279 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:28,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:44:28,280 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:28,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 166103031, now seen corresponding path program 1 times [2024-11-24 01:44:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:28,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535612932] [2024-11-24 01:44:28,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:44:28,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535612932] [2024-11-24 01:44:28,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535612932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:28,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:28,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:28,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831444464] [2024-11-24 01:44:28,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:28,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:28,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:28,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:28,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:28,363 INFO L87 Difference]: Start difference. First operand 122437 states and 189007 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:30,493 INFO L93 Difference]: Finished difference Result 259823 states and 401914 transitions. [2024-11-24 01:44:30,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 [2024-11-24 01:44:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:31,021 INFO L225 Difference]: With dead ends: 259823 [2024-11-24 01:44:31,021 INFO L226 Difference]: Without dead ends: 201641 [2024-11-24 01:44:31,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:31,084 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 367 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 [2024-11-24 01:44:31,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 367 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201641 states. [2024-11-24 01:44:34,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201641 to 201111. [2024-11-24 01:44:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201111 states, 201110 states have (on average 1.5416687385013177) internal successors, (310045), 201110 states have internal predecessors, (310045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201111 states to 201111 states and 310045 transitions. [2024-11-24 01:44:35,491 INFO L78 Accepts]: Start accepts. Automaton has 201111 states and 310045 transitions. Word has length 111 [2024-11-24 01:44:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:35,491 INFO L471 AbstractCegarLoop]: Abstraction has 201111 states and 310045 transitions. [2024-11-24 01:44:35,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:44:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 201111 states and 310045 transitions. [2024-11-24 01:44:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:44:35,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:35,495 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 01:44:35,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:44:35,495 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:35,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1809869492, now seen corresponding path program 1 times [2024-11-24 01:44:35,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:35,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712989942] [2024-11-24 01:44:35,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:35,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:44:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:35,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712989942] [2024-11-24 01:44:35,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712989942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:35,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:35,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:44:35,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604880915] [2024-11-24 01:44:35,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:35,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:44:35,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:35,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:44:35,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:35,611 INFO L87 Difference]: Start difference. First operand 201111 states and 310045 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) [2024-11-24 01:44:40,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:40,825 INFO L93 Difference]: Finished difference Result 599120 states and 921764 transitions. [2024-11-24 01:44:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:44:40,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 [2024-11-24 01:44:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:41,496 INFO L225 Difference]: With dead ends: 599120 [2024-11-24 01:44:41,496 INFO L226 Difference]: Without dead ends: 398081 [2024-11-24 01:44:41,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:44:41,611 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:41,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 452 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:44:41,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398081 states.