./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i --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_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/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_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/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_742a6e00-c67d-4842-bb32-453f0d7fce7e/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 ef5fa028017d876074069fbbea93055df8f895424627b4673992e11de8e7d01a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:48:32,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:48:32,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:48:32,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:48:32,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:48:32,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:48:32,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:48:32,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:48:32,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:48:32,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:48:32,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:48:32,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:48:32,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:48:32,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:48:32,637 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:48:32,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:48:32,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:48:32,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:48:32,639 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:48:32,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:48:32,639 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:48:32,639 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:48:32,639 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:48:32,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:32,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:32,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:32,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:48:32,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:48:32,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:48:32,642 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:48:32,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:48:32,642 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_742a6e00-c67d-4842-bb32-453f0d7fce7e/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 -> ef5fa028017d876074069fbbea93055df8f895424627b4673992e11de8e7d01a [2024-11-24 00:48:32,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:48:32,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:48:32,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:48:32,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:48:32,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:48:32,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i [2024-11-24 00:48:35,933 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/data/efd26c5a5/142b4a0b540d4c20b6bbb60387e48a99/FLAG0acc1f2c0 [2024-11-24 00:48:36,208 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:48:36,210 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i [2024-11-24 00:48:36,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/data/efd26c5a5/142b4a0b540d4c20b6bbb60387e48a99/FLAG0acc1f2c0 [2024-11-24 00:48:36,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/data/efd26c5a5/142b4a0b540d4c20b6bbb60387e48a99 [2024-11-24 00:48:36,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:48:36,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:48:36,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:36,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:48:36,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:48:36,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c111a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36, skipping insertion in model container [2024-11-24 00:48:36,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:48:36,524 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_742a6e00-c67d-4842-bb32-453f0d7fce7e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i[919,932] [2024-11-24 00:48:36,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:36,628 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:48:36,642 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_742a6e00-c67d-4842-bb32-453f0d7fce7e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-34.i[919,932] [2024-11-24 00:48:36,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:36,716 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:48:36,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36 WrapperNode [2024-11-24 00:48:36,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:36,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:36,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:48:36,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:48:36,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,803 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 168 [2024-11-24 00:48:36,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:36,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:48:36,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:48:36,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:48:36,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,858 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 00:48:36,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:48:36,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:48:36,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:48:36,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:48:36,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (1/1) ... [2024-11-24 00:48:36,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:36,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:36,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:48:36,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:48:36,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:48:36,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:48:36,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:48:36,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:48:36,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:48:36,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:48:37,062 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:48:37,065 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:48:37,661 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 00:48:37,662 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:48:37,673 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:48:37,673 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:48:37,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:37 BoogieIcfgContainer [2024-11-24 00:48:37,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:48:37,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:48:37,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:48:37,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:48:37,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:48:36" (1/3) ... [2024-11-24 00:48:37,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afe5186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:37, skipping insertion in model container [2024-11-24 00:48:37,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:36" (2/3) ... [2024-11-24 00:48:37,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afe5186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:37, skipping insertion in model container [2024-11-24 00:48:37,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:37" (3/3) ... [2024-11-24 00:48:37,685 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-34.i [2024-11-24 00:48:37,703 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:48:37,705 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-34.i that has 2 procedures, 69 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:48:37,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:48:37,787 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;@42d29b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:48:37,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:48:37,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 00:48:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:48:37,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:37,803 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:37,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:37,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash -752802284, now seen corresponding path program 1 times [2024-11-24 00:48:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:37,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029816107] [2024-11-24 00:48:37,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:37,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:48:38,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:38,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029816107] [2024-11-24 00:48:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029816107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547307386] [2024-11-24 00:48:38,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:38,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:38,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:38,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:38,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:48:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:38,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:48:38,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:48:38,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:38,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547307386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:38,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:38,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:48:38,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089262252] [2024-11-24 00:48:38,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:38,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:48:38,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:38,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:48:38,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:48:38,497 INFO L87 Difference]: Start difference. First operand has 69 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:48:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:38,532 INFO L93 Difference]: Finished difference Result 131 states and 219 transitions. [2024-11-24 00:48:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:48:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2024-11-24 00:48:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:38,541 INFO L225 Difference]: With dead ends: 131 [2024-11-24 00:48:38,541 INFO L226 Difference]: Without dead ends: 65 [2024-11-24 00:48:38,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 00:48:38,548 INFO L435 NwaCegarLoop]: 99 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, 99 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 00:48:38,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:48:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-24 00:48:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-24 00:48:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.46) internal successors, (73), 50 states have internal predecessors, (73), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 00:48:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 99 transitions. [2024-11-24 00:48:38,599 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 99 transitions. Word has length 92 [2024-11-24 00:48:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:38,601 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 99 transitions. [2024-11-24 00:48:38,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:48:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 99 transitions. [2024-11-24 00:48:38,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:48:38,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:38,607 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:38,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:48:38,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:48:38,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:38,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:38,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1571084566, now seen corresponding path program 1 times [2024-11-24 00:48:38,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916954640] [2024-11-24 00:48:38,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:38,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:48:39,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:39,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916954640] [2024-11-24 00:48:39,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916954640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:39,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:39,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:39,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949504087] [2024-11-24 00:48:39,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:39,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:39,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:39,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:39,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:39,560 INFO L87 Difference]: Start difference. First operand 65 states and 99 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:39,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:39,805 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2024-11-24 00:48:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-24 00:48:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:39,810 INFO L225 Difference]: With dead ends: 217 [2024-11-24 00:48:39,810 INFO L226 Difference]: Without dead ends: 155 [2024-11-24 00:48:39,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:48:39,815 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 125 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:39,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 313 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:39,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-24 00:48:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127. [2024-11-24 00:48:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 98 states have (on average 1.4591836734693877) internal successors, (143), 98 states have internal predecessors, (143), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-24 00:48:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 195 transitions. [2024-11-24 00:48:39,864 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 195 transitions. Word has length 92 [2024-11-24 00:48:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:39,865 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 195 transitions. [2024-11-24 00:48:39,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 195 transitions. [2024-11-24 00:48:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:48:39,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:39,871 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:39,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:48:39,871 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:39,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash 682914376, now seen corresponding path program 1 times [2024-11-24 00:48:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:39,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868577593] [2024-11-24 00:48:39,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:39,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:48:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:40,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868577593] [2024-11-24 00:48:40,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868577593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:40,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:40,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:40,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919423269] [2024-11-24 00:48:40,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:40,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:40,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:40,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:40,322 INFO L87 Difference]: Start difference. First operand 127 states and 195 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:40,627 INFO L93 Difference]: Finished difference Result 406 states and 619 transitions. [2024-11-24 00:48:40,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:48:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 93 [2024-11-24 00:48:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:40,635 INFO L225 Difference]: With dead ends: 406 [2024-11-24 00:48:40,635 INFO L226 Difference]: Without dead ends: 282 [2024-11-24 00:48:40,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:48:40,637 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 159 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:40,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 246 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:40,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-24 00:48:40,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 129. [2024-11-24 00:48:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 100 states have (on average 1.43) internal successors, (143), 100 states have internal predecessors, (143), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-24 00:48:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 195 transitions. [2024-11-24 00:48:40,700 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 195 transitions. Word has length 93 [2024-11-24 00:48:40,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:40,704 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 195 transitions. [2024-11-24 00:48:40,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 195 transitions. [2024-11-24 00:48:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:48:40,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:40,706 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:40,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:48:40,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:40,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1846383539, now seen corresponding path program 1 times [2024-11-24 00:48:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:40,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849763704] [2024-11-24 00:48:40,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:40,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:48:46,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:46,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849763704] [2024-11-24 00:48:46,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849763704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:46,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:48:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079890229] [2024-11-24 00:48:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:46,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:48:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:46,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:48:46,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:48:46,717 INFO L87 Difference]: Start difference. First operand 129 states and 195 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:49,852 INFO L93 Difference]: Finished difference Result 384 states and 568 transitions. [2024-11-24 00:48:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:48:49,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-11-24 00:48:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:49,858 INFO L225 Difference]: With dead ends: 384 [2024-11-24 00:48:49,858 INFO L226 Difference]: Without dead ends: 258 [2024-11-24 00:48:49,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:48:49,864 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 293 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:49,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 347 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 00:48:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-24 00:48:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 165. [2024-11-24 00:48:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.4108527131782946) internal successors, (182), 130 states have internal predecessors, (182), 31 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:48:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 244 transitions. [2024-11-24 00:48:49,907 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 244 transitions. Word has length 94 [2024-11-24 00:48:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:49,910 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 244 transitions. [2024-11-24 00:48:49,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 244 transitions. [2024-11-24 00:48:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:48:49,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:49,912 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:49,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:48:49,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:49,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1588218101, now seen corresponding path program 1 times [2024-11-24 00:48:49,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:49,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285203886] [2024-11-24 00:48:49,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:48:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285203886] [2024-11-24 00:48:50,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285203886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:50,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:50,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:50,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381717259] [2024-11-24 00:48:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:50,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:50,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:50,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:50,464 INFO L87 Difference]: Start difference. First operand 165 states and 244 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:50,781 INFO L93 Difference]: Finished difference Result 402 states and 593 transitions. [2024-11-24 00:48:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:50,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-11-24 00:48:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:50,786 INFO L225 Difference]: With dead ends: 402 [2024-11-24 00:48:50,787 INFO L226 Difference]: Without dead ends: 248 [2024-11-24 00:48:50,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:48:50,789 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 78 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:50,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 220 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-24 00:48:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 198. [2024-11-24 00:48:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 153 states have (on average 1.3986928104575163) internal successors, (214), 153 states have internal predecessors, (214), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:48:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 292 transitions. [2024-11-24 00:48:50,823 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 292 transitions. Word has length 94 [2024-11-24 00:48:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:50,824 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 292 transitions. [2024-11-24 00:48:50,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:48:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 292 transitions. [2024-11-24 00:48:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:48:50,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:50,825 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:50,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:48:50,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:50,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1018473050, now seen corresponding path program 1 times [2024-11-24 00:48:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972751768] [2024-11-24 00:48:50,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:49:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:44,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972751768] [2024-11-24 00:49:44,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972751768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:44,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:44,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:49:44,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971305860] [2024-11-24 00:49:44,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:44,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:49:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:44,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:49:44,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:49:44,582 INFO L87 Difference]: Start difference. First operand 198 states and 292 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:46,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:46,768 INFO L93 Difference]: Finished difference Result 334 states and 479 transitions. [2024-11-24 00:49:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:49:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-24 00:49:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:46,772 INFO L225 Difference]: With dead ends: 334 [2024-11-24 00:49:46,772 INFO L226 Difference]: Without dead ends: 332 [2024-11-24 00:49:46,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:49:46,774 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 432 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:46,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 603 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:49:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-24 00:49:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 219. [2024-11-24 00:49:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 174 states have (on average 1.4080459770114941) internal successors, (245), 174 states have internal predecessors, (245), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:49:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2024-11-24 00:49:46,815 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 97 [2024-11-24 00:49:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:46,818 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2024-11-24 00:49:46,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2024-11-24 00:49:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:49:46,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:46,822 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:46,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:49:46,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:46,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:46,823 INFO L85 PathProgramCache]: Analyzing trace with hash -975671656, now seen corresponding path program 1 times [2024-11-24 00:49:46,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:46,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109051388] [2024-11-24 00:49:46,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:50:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109051388] [2024-11-24 00:50:30,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109051388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:30,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:30,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:50:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142240160] [2024-11-24 00:50:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:30,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:50:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:30,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:50:30,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:50:30,203 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:31,432 INFO L93 Difference]: Finished difference Result 355 states and 510 transitions. [2024-11-24 00:50:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:50:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-24 00:50:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:31,435 INFO L225 Difference]: With dead ends: 355 [2024-11-24 00:50:31,436 INFO L226 Difference]: Without dead ends: 353 [2024-11-24 00:50:31,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:50:31,437 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 295 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:31,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 665 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:31,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-24 00:50:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 239. [2024-11-24 00:50:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 194 states have (on average 1.407216494845361) internal successors, (273), 194 states have internal predecessors, (273), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:50:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 351 transitions. [2024-11-24 00:50:31,477 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 351 transitions. Word has length 97 [2024-11-24 00:50:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:31,477 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 351 transitions. [2024-11-24 00:50:31,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 351 transitions. [2024-11-24 00:50:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:50:31,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:31,478 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:50:31,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:50:31,479 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:31,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -670470692, now seen corresponding path program 1 times [2024-11-24 00:50:31,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:31,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720227290] [2024-11-24 00:50:31,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:31,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:50:31,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:31,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720227290] [2024-11-24 00:50:31,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720227290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:31,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:31,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:50:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732697695] [2024-11-24 00:50:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:31,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:50:31,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:31,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:50:31,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:50:31,720 INFO L87 Difference]: Start difference. First operand 239 states and 351 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:31,931 INFO L93 Difference]: Finished difference Result 451 states and 661 transitions. [2024-11-24 00:50:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-24 00:50:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:31,933 INFO L225 Difference]: With dead ends: 451 [2024-11-24 00:50:31,933 INFO L226 Difference]: Without dead ends: 290 [2024-11-24 00:50:31,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:50:31,934 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 93 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:31,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 431 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:50:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-24 00:50:31,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 240. [2024-11-24 00:50:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 195 states have (on average 1.405128205128205) internal successors, (274), 195 states have internal predecessors, (274), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:50:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 352 transitions. [2024-11-24 00:50:31,970 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 352 transitions. Word has length 97 [2024-11-24 00:50:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:31,970 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 352 transitions. [2024-11-24 00:50:31,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 352 transitions. [2024-11-24 00:50:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:50:31,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:31,972 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:50:31,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:50:31,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:31,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash -512120374, now seen corresponding path program 1 times [2024-11-24 00:50:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:31,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927186052] [2024-11-24 00:50:31,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:31,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:51:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:51:15,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927186052] [2024-11-24 00:51:15,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927186052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:51:15,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:51:15,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:51:15,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773880733] [2024-11-24 00:51:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:15,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:51:15,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:51:15,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:51:15,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:51:15,972 INFO L87 Difference]: Start difference. First operand 240 states and 352 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:51:18,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:18,402 INFO L93 Difference]: Finished difference Result 376 states and 534 transitions. [2024-11-24 00:51:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:51:18,402 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2024-11-24 00:51:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:18,404 INFO L225 Difference]: With dead ends: 376 [2024-11-24 00:51:18,405 INFO L226 Difference]: Without dead ends: 374 [2024-11-24 00:51:18,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=362, Invalid=1044, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:51:18,406 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 421 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:18,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 863 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:51:18,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-24 00:51:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 241. [2024-11-24 00:51:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 196 states have (on average 1.403061224489796) internal successors, (275), 196 states have internal predecessors, (275), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:51:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 353 transitions. [2024-11-24 00:51:18,437 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 353 transitions. Word has length 98 [2024-11-24 00:51:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:18,438 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 353 transitions. [2024-11-24 00:51:18,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:51:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 353 transitions. [2024-11-24 00:51:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:51:18,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:18,439 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:18,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:51:18,440 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:18,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:18,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2093903180, now seen corresponding path program 1 times [2024-11-24 00:51:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:51:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353712654] [2024-11-24 00:51:18,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:51:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:10,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:10,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353712654] [2024-11-24 00:52:10,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353712654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:10,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:10,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:52:10,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234319895] [2024-11-24 00:52:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:10,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:52:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:10,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:52:10,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:52:10,602 INFO L87 Difference]: Start difference. First operand 241 states and 353 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:52:12,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:12,912 INFO L93 Difference]: Finished difference Result 410 states and 580 transitions. [2024-11-24 00:52:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:52:12,913 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2024-11-24 00:52:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:12,915 INFO L225 Difference]: With dead ends: 410 [2024-11-24 00:52:12,915 INFO L226 Difference]: Without dead ends: 408 [2024-11-24 00:52:12,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:52:12,916 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 220 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:12,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 911 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:52:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-24 00:52:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 242. [2024-11-24 00:52:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 197 states have (on average 1.401015228426396) internal successors, (276), 197 states have internal predecessors, (276), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 354 transitions. [2024-11-24 00:52:12,945 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 354 transitions. Word has length 98 [2024-11-24 00:52:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:12,945 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 354 transitions. [2024-11-24 00:52:12,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:52:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 354 transitions. [2024-11-24 00:52:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:52:12,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:12,947 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:12,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:52:12,947 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:12,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash 748104558, now seen corresponding path program 1 times [2024-11-24 00:52:12,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655320525] [2024-11-24 00:52:12,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:13,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655320525] [2024-11-24 00:52:13,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655320525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:13,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:13,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:52:13,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268983805] [2024-11-24 00:52:13,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:13,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:52:13,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:13,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:52:13,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:52:13,444 INFO L87 Difference]: Start difference. First operand 242 states and 354 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:14,100 INFO L93 Difference]: Finished difference Result 591 states and 856 transitions. [2024-11-24 00:52:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:52:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-24 00:52:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:14,103 INFO L225 Difference]: With dead ends: 591 [2024-11-24 00:52:14,103 INFO L226 Difference]: Without dead ends: 383 [2024-11-24 00:52:14,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:52:14,104 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 155 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:14,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 313 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:52:14,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-24 00:52:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 331. [2024-11-24 00:52:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 286 states have (on average 1.4090909090909092) internal successors, (403), 286 states have internal predecessors, (403), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 481 transitions. [2024-11-24 00:52:14,150 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 481 transitions. Word has length 99 [2024-11-24 00:52:14,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:14,150 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 481 transitions. [2024-11-24 00:52:14,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 481 transitions. [2024-11-24 00:52:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:52:14,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:14,152 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:14,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:52:14,152 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:14,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2012471056, now seen corresponding path program 1 times [2024-11-24 00:52:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282299905] [2024-11-24 00:52:14,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:14,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:14,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282299905] [2024-11-24 00:52:14,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282299905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:14,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:14,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:52:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232892408] [2024-11-24 00:52:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:14,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:52:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:14,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:52:14,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:52:14,657 INFO L87 Difference]: Start difference. First operand 331 states and 481 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:15,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:15,279 INFO L93 Difference]: Finished difference Result 585 states and 843 transitions. [2024-11-24 00:52:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:52:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-24 00:52:15,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:15,283 INFO L225 Difference]: With dead ends: 585 [2024-11-24 00:52:15,283 INFO L226 Difference]: Without dead ends: 358 [2024-11-24 00:52:15,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:52:15,285 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 109 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:15,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 376 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:52:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-24 00:52:15,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 330. [2024-11-24 00:52:15,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 285 states have (on average 1.407017543859649) internal successors, (401), 285 states have internal predecessors, (401), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:15,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 479 transitions. [2024-11-24 00:52:15,319 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 479 transitions. Word has length 99 [2024-11-24 00:52:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:15,320 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 479 transitions. [2024-11-24 00:52:15,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 479 transitions. [2024-11-24 00:52:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:52:15,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:15,322 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:15,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:52:15,322 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:15,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:15,323 INFO L85 PathProgramCache]: Analyzing trace with hash 471766909, now seen corresponding path program 1 times [2024-11-24 00:52:15,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:15,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726062865] [2024-11-24 00:52:15,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:15,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:15,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726062865] [2024-11-24 00:52:15,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726062865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:15,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:15,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:52:15,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23916712] [2024-11-24 00:52:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:15,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:52:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:15,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:52:15,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:52:15,412 INFO L87 Difference]: Start difference. First operand 330 states and 479 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:15,561 INFO L93 Difference]: Finished difference Result 611 states and 888 transitions. [2024-11-24 00:52:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:52:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-24 00:52:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:15,564 INFO L225 Difference]: With dead ends: 611 [2024-11-24 00:52:15,564 INFO L226 Difference]: Without dead ends: 385 [2024-11-24 00:52:15,568 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 00:52:15,568 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:15,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 168 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:52:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-24 00:52:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 339. [2024-11-24 00:52:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 294 states have (on average 1.4183673469387754) internal successors, (417), 294 states have internal predecessors, (417), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 495 transitions. [2024-11-24 00:52:15,604 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 495 transitions. Word has length 100 [2024-11-24 00:52:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:15,605 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 495 transitions. [2024-11-24 00:52:15,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:15,605 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 495 transitions. [2024-11-24 00:52:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:52:15,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:15,608 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:15,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:52:15,608 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:15,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1464288454, now seen corresponding path program 1 times [2024-11-24 00:52:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120986882] [2024-11-24 00:52:15,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:15,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:15,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:15,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120986882] [2024-11-24 00:52:15,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120986882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:15,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:15,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:52:15,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793586233] [2024-11-24 00:52:15,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:15,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:52:15,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:15,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:52:15,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:52:15,951 INFO L87 Difference]: Start difference. First operand 339 states and 495 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:16,556 INFO L93 Difference]: Finished difference Result 676 states and 980 transitions. [2024-11-24 00:52:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:52:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 102 [2024-11-24 00:52:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:16,560 INFO L225 Difference]: With dead ends: 676 [2024-11-24 00:52:16,560 INFO L226 Difference]: Without dead ends: 458 [2024-11-24 00:52:16,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:52:16,562 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 125 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:16,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 430 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:52:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-24 00:52:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 372. [2024-11-24 00:52:16,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 327 states have (on average 1.4220183486238531) internal successors, (465), 327 states have internal predecessors, (465), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 543 transitions. [2024-11-24 00:52:16,605 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 543 transitions. Word has length 102 [2024-11-24 00:52:16,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:16,605 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 543 transitions. [2024-11-24 00:52:16,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 543 transitions. [2024-11-24 00:52:16,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:52:16,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:16,607 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:16,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:52:16,608 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:16,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1753249150, now seen corresponding path program 1 times [2024-11-24 00:52:16,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:16,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921636029] [2024-11-24 00:52:16,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:16,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:16,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:16,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921636029] [2024-11-24 00:52:16,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921636029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:16,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:16,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:52:16,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794490477] [2024-11-24 00:52:16,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:16,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:52:16,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:16,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:52:16,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:52:16,971 INFO L87 Difference]: Start difference. First operand 372 states and 543 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:17,589 INFO L93 Difference]: Finished difference Result 757 states and 1095 transitions. [2024-11-24 00:52:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:52:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 102 [2024-11-24 00:52:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:17,594 INFO L225 Difference]: With dead ends: 757 [2024-11-24 00:52:17,594 INFO L226 Difference]: Without dead ends: 531 [2024-11-24 00:52:17,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:52:17,595 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 128 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:17,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 445 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:52:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-24 00:52:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 441. [2024-11-24 00:52:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 396 states have (on average 1.4242424242424243) internal successors, (564), 396 states have internal predecessors, (564), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:17,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 642 transitions. [2024-11-24 00:52:17,644 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 642 transitions. Word has length 102 [2024-11-24 00:52:17,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:17,645 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 642 transitions. [2024-11-24 00:52:17,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:17,645 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 642 transitions. [2024-11-24 00:52:17,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:52:17,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:17,647 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:17,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:52:17,647 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:17,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:17,648 INFO L85 PathProgramCache]: Analyzing trace with hash -661244402, now seen corresponding path program 1 times [2024-11-24 00:52:17,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:17,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197452838] [2024-11-24 00:52:17,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:17,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:17,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:17,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197452838] [2024-11-24 00:52:17,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197452838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:17,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:17,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:52:17,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516315052] [2024-11-24 00:52:17,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:17,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:52:17,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:17,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:52:17,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:52:17,721 INFO L87 Difference]: Start difference. First operand 441 states and 642 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:17,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:17,839 INFO L93 Difference]: Finished difference Result 895 states and 1301 transitions. [2024-11-24 00:52:17,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:52:17,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 103 [2024-11-24 00:52:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:17,843 INFO L225 Difference]: With dead ends: 895 [2024-11-24 00:52:17,843 INFO L226 Difference]: Without dead ends: 580 [2024-11-24 00:52:17,844 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 00:52:17,844 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:17,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 190 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:52:17,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-24 00:52:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 521. [2024-11-24 00:52:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 476 states have (on average 1.4012605042016806) internal successors, (667), 476 states have internal predecessors, (667), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 745 transitions. [2024-11-24 00:52:17,887 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 745 transitions. Word has length 103 [2024-11-24 00:52:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:17,887 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 745 transitions. [2024-11-24 00:52:17,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 745 transitions. [2024-11-24 00:52:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:52:17,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:17,889 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:17,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:52:17,890 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash 879365660, now seen corresponding path program 1 times [2024-11-24 00:52:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:17,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922315952] [2024-11-24 00:52:17,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922315952] [2024-11-24 00:52:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922315952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:52:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724349207] [2024-11-24 00:52:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:17,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:52:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:17,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:52:17,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:52:17,959 INFO L87 Difference]: Start difference. First operand 521 states and 745 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:18,080 INFO L93 Difference]: Finished difference Result 871 states and 1250 transitions. [2024-11-24 00:52:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:52:18,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 103 [2024-11-24 00:52:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:18,083 INFO L225 Difference]: With dead ends: 871 [2024-11-24 00:52:18,083 INFO L226 Difference]: Without dead ends: 533 [2024-11-24 00:52:18,084 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 00:52:18,085 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 37 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:18,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 190 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:52:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-24 00:52:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 499. [2024-11-24 00:52:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 454 states have (on average 1.3986784140969164) internal successors, (635), 454 states have internal predecessors, (635), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 713 transitions. [2024-11-24 00:52:18,126 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 713 transitions. Word has length 103 [2024-11-24 00:52:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:18,126 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 713 transitions. [2024-11-24 00:52:18,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 713 transitions. [2024-11-24 00:52:18,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:52:18,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:18,128 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:18,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:52:18,129 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:18,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash 775418072, now seen corresponding path program 1 times [2024-11-24 00:52:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520858923] [2024-11-24 00:52:18,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:18,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:18,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520858923] [2024-11-24 00:52:18,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520858923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:18,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:52:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718808310] [2024-11-24 00:52:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:18,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:52:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:18,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:52:18,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:52:18,408 INFO L87 Difference]: Start difference. First operand 499 states and 713 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:18,796 INFO L93 Difference]: Finished difference Result 857 states and 1232 transitions. [2024-11-24 00:52:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:52:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-24 00:52:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:18,800 INFO L225 Difference]: With dead ends: 857 [2024-11-24 00:52:18,800 INFO L226 Difference]: Without dead ends: 512 [2024-11-24 00:52:18,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:52:18,802 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 81 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:18,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 266 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:52:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-24 00:52:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 462. [2024-11-24 00:52:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 417 states have (on average 1.4052757793764987) internal successors, (586), 417 states have internal predecessors, (586), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 664 transitions. [2024-11-24 00:52:18,847 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 664 transitions. Word has length 105 [2024-11-24 00:52:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:18,847 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 664 transitions. [2024-11-24 00:52:18,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 664 transitions. [2024-11-24 00:52:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:52:18,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:18,849 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:18,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:52:18,850 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:18,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1139197961, now seen corresponding path program 1 times [2024-11-24 00:52:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:18,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76068964] [2024-11-24 00:52:18,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:52:21,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76068964] [2024-11-24 00:52:21,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76068964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:21,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:21,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:52:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163528851] [2024-11-24 00:52:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:21,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:52:21,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:21,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:52:21,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:52:21,476 INFO L87 Difference]: Start difference. First operand 462 states and 664 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:23,518 INFO L93 Difference]: Finished difference Result 917 states and 1297 transitions. [2024-11-24 00:52:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:52:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-24 00:52:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:23,522 INFO L225 Difference]: With dead ends: 917 [2024-11-24 00:52:23,522 INFO L226 Difference]: Without dead ends: 609 [2024-11-24 00:52:23,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:52:23,523 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 226 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:23,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 450 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:52:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-24 00:52:23,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 495. [2024-11-24 00:52:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 450 states have (on average 1.4022222222222223) internal successors, (631), 450 states have internal predecessors, (631), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:52:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 709 transitions. [2024-11-24 00:52:23,575 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 709 transitions. Word has length 105 [2024-11-24 00:52:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:23,576 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 709 transitions. [2024-11-24 00:52:23,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:52:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 709 transitions. [2024-11-24 00:52:23,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:52:23,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:23,578 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:23,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:52:23,579 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:23,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2134700981, now seen corresponding path program 1 times [2024-11-24 00:52:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:23,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942651049] [2024-11-24 00:52:23,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:23,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:53:13,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942651049] [2024-11-24 00:53:13,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942651049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:13,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:53:13,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144327500] [2024-11-24 00:53:13,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:13,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:53:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:13,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:53:13,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:53:13,654 INFO L87 Difference]: Start difference. First operand 495 states and 709 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:53:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:21,026 INFO L93 Difference]: Finished difference Result 835 states and 1155 transitions. [2024-11-24 00:53:21,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:53:21,026 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-24 00:53:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:21,029 INFO L225 Difference]: With dead ends: 835 [2024-11-24 00:53:21,030 INFO L226 Difference]: Without dead ends: 651 [2024-11-24 00:53:21,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=459, Invalid=1797, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 00:53:21,032 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 428 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:21,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 586 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:53:21,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-24 00:53:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 507. [2024-11-24 00:53:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 462 states have (on average 1.3917748917748918) internal successors, (643), 462 states have internal predecessors, (643), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:53:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 721 transitions. [2024-11-24 00:53:21,094 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 721 transitions. Word has length 105 [2024-11-24 00:53:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:21,094 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 721 transitions. [2024-11-24 00:53:21,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:53:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 721 transitions. [2024-11-24 00:53:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:53:21,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:21,096 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:21,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:53:21,097 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:21,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:21,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2000687475, now seen corresponding path program 1 times [2024-11-24 00:53:21,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:21,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102794168] [2024-11-24 00:53:21,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:21,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:54:09,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:09,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102794168] [2024-11-24 00:54:09,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102794168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:09,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:09,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:54:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717515447] [2024-11-24 00:54:09,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:09,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:54:09,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:09,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:54:09,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:54:09,047 INFO L87 Difference]: Start difference. First operand 507 states and 721 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:54:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:54:18,323 INFO L93 Difference]: Finished difference Result 1037 states and 1434 transitions. [2024-11-24 00:54:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 00:54:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-24 00:54:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:54:18,327 INFO L225 Difference]: With dead ends: 1037 [2024-11-24 00:54:18,328 INFO L226 Difference]: Without dead ends: 697 [2024-11-24 00:54:18,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=416, Invalid=1654, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:54:18,330 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 359 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:54:18,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 576 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 00:54:18,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-24 00:54:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 519. [2024-11-24 00:54:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 474 states have (on average 1.3818565400843883) internal successors, (655), 474 states have internal predecessors, (655), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:54:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 733 transitions. [2024-11-24 00:54:18,397 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 733 transitions. Word has length 105 [2024-11-24 00:54:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:54:18,398 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 733 transitions. [2024-11-24 00:54:18,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:54:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 733 transitions. [2024-11-24 00:54:18,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:54:18,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:54:18,400 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:18,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:54:18,401 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:54:18,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1699481721, now seen corresponding path program 1 times [2024-11-24 00:54:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:18,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546677593] [2024-11-24 00:54:18,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:54:19,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546677593] [2024-11-24 00:54:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546677593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:19,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:19,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:54:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342249010] [2024-11-24 00:54:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:19,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:54:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:19,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:54:19,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:54:19,062 INFO L87 Difference]: Start difference. First operand 519 states and 733 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:54:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:54:20,304 INFO L93 Difference]: Finished difference Result 941 states and 1320 transitions. [2024-11-24 00:54:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:54:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2024-11-24 00:54:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:54:20,307 INFO L225 Difference]: With dead ends: 941 [2024-11-24 00:54:20,307 INFO L226 Difference]: Without dead ends: 633 [2024-11-24 00:54:20,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:54:20,312 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 220 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:54:20,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 541 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:54:20,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-24 00:54:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 547. [2024-11-24 00:54:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 502 states have (on average 1.3804780876494025) internal successors, (693), 502 states have internal predecessors, (693), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:54:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 771 transitions. [2024-11-24 00:54:20,379 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 771 transitions. Word has length 105 [2024-11-24 00:54:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:54:20,379 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 771 transitions. [2024-11-24 00:54:20,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:54:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 771 transitions. [2024-11-24 00:54:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:54:20,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:54:20,382 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:20,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:54:20,382 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:54:20,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1615246271, now seen corresponding path program 1 times [2024-11-24 00:54:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6510503] [2024-11-24 00:54:20,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:55:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:55:11,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:55:11,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6510503] [2024-11-24 00:55:11,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6510503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:55:11,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:55:11,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-24 00:55:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036885228] [2024-11-24 00:55:11,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:55:11,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 00:55:11,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:55:11,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 00:55:11,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:55:11,172 INFO L87 Difference]: Start difference. First operand 547 states and 771 transitions. Second operand has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:55:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:55:24,981 INFO L93 Difference]: Finished difference Result 665 states and 895 transitions. [2024-11-24 00:55:24,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-24 00:55:24,982 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-24 00:55:24,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:55:24,985 INFO L225 Difference]: With dead ends: 665 [2024-11-24 00:55:24,985 INFO L226 Difference]: Without dead ends: 663 [2024-11-24 00:55:24,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=928, Invalid=3764, Unknown=0, NotChecked=0, Total=4692 [2024-11-24 00:55:24,987 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 513 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:55:24,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 577 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 00:55:24,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-24 00:55:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 545. [2024-11-24 00:55:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 500 states have (on average 1.378) internal successors, (689), 500 states have internal predecessors, (689), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:55:25,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 767 transitions. [2024-11-24 00:55:25,055 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 767 transitions. Word has length 106 [2024-11-24 00:55:25,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:55:25,056 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 767 transitions. [2024-11-24 00:55:25,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:55:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 767 transitions. [2024-11-24 00:55:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:55:25,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:55:25,058 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:25,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:55:25,058 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:55:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:55:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1755794881, now seen corresponding path program 1 times [2024-11-24 00:55:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:55:25,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017918218] [2024-11-24 00:55:25,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:55:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:55:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:56:09,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:09,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017918218] [2024-11-24 00:56:09,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017918218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:09,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:09,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 00:56:09,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647046302] [2024-11-24 00:56:09,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:09,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:56:09,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:09,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:56:09,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:56:09,431 INFO L87 Difference]: Start difference. First operand 545 states and 767 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:56:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:19,983 INFO L93 Difference]: Finished difference Result 701 states and 934 transitions. [2024-11-24 00:56:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-24 00:56:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-24 00:56:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:19,986 INFO L225 Difference]: With dead ends: 701 [2024-11-24 00:56:19,986 INFO L226 Difference]: Without dead ends: 699 [2024-11-24 00:56:19,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=785, Invalid=3375, Unknown=0, NotChecked=0, Total=4160 [2024-11-24 00:56:19,989 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 225 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:19,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 608 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 00:56:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-24 00:56:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 543. [2024-11-24 00:56:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 498 states have (on average 1.3755020080321285) internal successors, (685), 498 states have internal predecessors, (685), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:56:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 763 transitions. [2024-11-24 00:56:20,048 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 763 transitions. Word has length 106 [2024-11-24 00:56:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:20,049 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 763 transitions. [2024-11-24 00:56:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:56:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 763 transitions. [2024-11-24 00:56:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:56:20,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:20,051 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:20,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:56:20,051 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:20,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1589695538, now seen corresponding path program 1 times [2024-11-24 00:56:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722791839] [2024-11-24 00:56:20,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:56:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:56:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:56:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722791839] [2024-11-24 00:56:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722791839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:56:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:56:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:56:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867597396] [2024-11-24 00:56:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:56:22,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:56:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:56:22,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:56:22,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:56:22,398 INFO L87 Difference]: Start difference. First operand 543 states and 763 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:56:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:56:23,693 INFO L93 Difference]: Finished difference Result 917 states and 1288 transitions. [2024-11-24 00:56:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:56:23,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-24 00:56:23,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:56:23,695 INFO L225 Difference]: With dead ends: 917 [2024-11-24 00:56:23,695 INFO L226 Difference]: Without dead ends: 577 [2024-11-24 00:56:23,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:56:23,696 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 167 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:56:23,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 394 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:56:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-24 00:56:23,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 543. [2024-11-24 00:56:23,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 498 states have (on average 1.3674698795180722) internal successors, (681), 498 states have internal predecessors, (681), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:56:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 759 transitions. [2024-11-24 00:56:23,741 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 759 transitions. Word has length 109 [2024-11-24 00:56:23,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:56:23,742 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 759 transitions. [2024-11-24 00:56:23,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:56:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 759 transitions. [2024-11-24 00:56:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:56:23,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:56:23,744 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:23,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:56:23,744 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:56:23,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:56:23,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1684203404, now seen corresponding path program 1 times [2024-11-24 00:56:23,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:56:23,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783169937] [2024-11-24 00:56:23,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:56:23,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:56:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:57:09,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:09,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783169937] [2024-11-24 00:57:09,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783169937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:09,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:09,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:57:09,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86503172] [2024-11-24 00:57:09,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:09,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:57:09,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:09,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:57:09,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:57:09,648 INFO L87 Difference]: Start difference. First operand 543 states and 759 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:12,582 INFO L93 Difference]: Finished difference Result 626 states and 846 transitions. [2024-11-24 00:57:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:57:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-24 00:57:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:12,586 INFO L225 Difference]: With dead ends: 626 [2024-11-24 00:57:12,586 INFO L226 Difference]: Without dead ends: 624 [2024-11-24 00:57:12,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:57:12,587 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 320 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:12,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 606 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:57:12,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-24 00:57:12,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 546. [2024-11-24 00:57:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 501 states have (on average 1.3692614770459082) internal successors, (686), 501 states have internal predecessors, (686), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:57:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 764 transitions. [2024-11-24 00:57:12,649 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 764 transitions. Word has length 109 [2024-11-24 00:57:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:12,649 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 764 transitions. [2024-11-24 00:57:12,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 764 transitions. [2024-11-24 00:57:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:57:12,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:12,652 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:12,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:57:12,652 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:12,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1550189898, now seen corresponding path program 1 times [2024-11-24 00:57:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:12,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985935389] [2024-11-24 00:57:12,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:57:55,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:55,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985935389] [2024-11-24 00:57:55,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985935389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:55,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:55,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:57:55,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39718828] [2024-11-24 00:57:55,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:55,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:57:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:55,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:57:55,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:57:55,866 INFO L87 Difference]: Start difference. First operand 546 states and 764 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:58,270 INFO L93 Difference]: Finished difference Result 643 states and 867 transitions. [2024-11-24 00:57:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:57:58,270 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-24 00:57:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:58,272 INFO L225 Difference]: With dead ends: 643 [2024-11-24 00:57:58,272 INFO L226 Difference]: Without dead ends: 641 [2024-11-24 00:57:58,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=197, Invalid=733, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:57:58,273 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 280 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:58,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 804 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:57:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-24 00:57:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 549. [2024-11-24 00:57:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 504 states have (on average 1.371031746031746) internal successors, (691), 504 states have internal predecessors, (691), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:57:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 769 transitions. [2024-11-24 00:57:58,330 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 769 transitions. Word has length 109 [2024-11-24 00:57:58,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:58,330 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 769 transitions. [2024-11-24 00:57:58,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 769 transitions. [2024-11-24 00:57:58,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:57:58,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:58,332 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:58,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:57:58,332 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:58,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1824752014, now seen corresponding path program 1 times [2024-11-24 00:57:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:58,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570911063] [2024-11-24 00:57:58,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:57:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:57:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:57:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570911063] [2024-11-24 00:57:58,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570911063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:57:58,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:57:58,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:57:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924480811] [2024-11-24 00:57:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:57:58,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:57:58,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:57:58,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:57:58,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:57:58,873 INFO L87 Difference]: Start difference. First operand 549 states and 769 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:59,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:57:59,557 INFO L93 Difference]: Finished difference Result 911 states and 1282 transitions. [2024-11-24 00:57:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:57:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-24 00:57:59,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:57:59,560 INFO L225 Difference]: With dead ends: 911 [2024-11-24 00:57:59,560 INFO L226 Difference]: Without dead ends: 568 [2024-11-24 00:57:59,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:57:59,561 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 174 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:57:59,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 440 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:57:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-24 00:57:59,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 514. [2024-11-24 00:57:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 469 states have (on average 1.3752665245202558) internal successors, (645), 469 states have internal predecessors, (645), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:57:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 723 transitions. [2024-11-24 00:57:59,621 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 723 transitions. Word has length 109 [2024-11-24 00:57:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:57:59,622 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 723 transitions. [2024-11-24 00:57:59,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:57:59,622 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 723 transitions. [2024-11-24 00:57:59,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:57:59,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:57:59,623 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:59,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:57:59,623 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:57:59,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:57:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash 534723272, now seen corresponding path program 1 times [2024-11-24 00:57:59,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:57:59,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031013334] [2024-11-24 00:57:59,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:57:59,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:57:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:58:48,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:48,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031013334] [2024-11-24 00:58:48,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031013334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:48,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:48,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 00:58:48,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667350098] [2024-11-24 00:58:48,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:48,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:58:48,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:48,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:58:48,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:58:48,399 INFO L87 Difference]: Start difference. First operand 514 states and 723 transitions. Second operand has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 21 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:58:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:55,486 INFO L93 Difference]: Finished difference Result 594 states and 807 transitions. [2024-11-24 00:58:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:58:55,487 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 21 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-11-24 00:58:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:55,490 INFO L225 Difference]: With dead ends: 594 [2024-11-24 00:58:55,490 INFO L226 Difference]: Without dead ends: 592 [2024-11-24 00:58:55,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=400, Invalid=1406, Unknown=0, NotChecked=0, Total=1806 [2024-11-24 00:58:55,493 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 292 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:55,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 738 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:58:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-24 00:58:55,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 505. [2024-11-24 00:58:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 460 states have (on average 1.376086956521739) internal successors, (633), 460 states have internal predecessors, (633), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:58:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 711 transitions. [2024-11-24 00:58:55,566 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 711 transitions. Word has length 110 [2024-11-24 00:58:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:55,567 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 711 transitions. [2024-11-24 00:58:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 21 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:58:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 711 transitions. [2024-11-24 00:58:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:58:55,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:55,569 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:55,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:58:55,569 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:55,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 675271882, now seen corresponding path program 1 times [2024-11-24 00:58:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:55,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121345921] [2024-11-24 00:58:55,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 00:59:41,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:41,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121345921] [2024-11-24 00:59:41,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121345921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:59:41,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:59:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:59:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669025052] [2024-11-24 00:59:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:59:41,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:59:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:41,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:59:41,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:59:41,809 INFO L87 Difference]: Start difference. First operand 505 states and 711 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:59:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:46,274 INFO L93 Difference]: Finished difference Result 612 states and 827 transitions. [2024-11-24 00:59:46,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 00:59:46,274 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-11-24 00:59:46,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:46,276 INFO L225 Difference]: With dead ends: 612 [2024-11-24 00:59:46,276 INFO L226 Difference]: Without dead ends: 610 [2024-11-24 00:59:46,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:59:46,277 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 196 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:46,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 759 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:59:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-24 00:59:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 496. [2024-11-24 00:59:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 451 states have (on average 1.376940133037694) internal successors, (621), 451 states have internal predecessors, (621), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:59:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 699 transitions. [2024-11-24 00:59:46,335 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 699 transitions. Word has length 110 [2024-11-24 00:59:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:46,336 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 699 transitions. [2024-11-24 00:59:46,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:59:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 699 transitions. [2024-11-24 00:59:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 00:59:46,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:46,338 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:46,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:59:46,339 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:46,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash 42969369, now seen corresponding path program 1 times [2024-11-24 00:59:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:46,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638058311] [2024-11-24 00:59:46,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-24 00:59:46,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:46,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638058311] [2024-11-24 00:59:46,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638058311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:59:46,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861301318] [2024-11-24 00:59:46,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:46,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:59:46,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:59:46,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:59:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:59:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:46,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:59:46,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:59:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 89 proven. 705 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-11-24 00:59:47,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:59:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 90 proven. 3 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2024-11-24 00:59:48,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861301318] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:59:48,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:59:48,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 7] total 19 [2024-11-24 00:59:48,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794149224] [2024-11-24 00:59:48,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:59:48,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:59:48,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:59:48,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:59:48,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:59:48,017 INFO L87 Difference]: Start difference. First operand 496 states and 699 transitions. Second operand has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (53), 4 states have call predecessors, (53), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-24 00:59:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:59:48,812 INFO L93 Difference]: Finished difference Result 803 states and 1121 transitions. [2024-11-24 00:59:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:59:48,813 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (53), 4 states have call predecessors, (53), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) Word has length 187 [2024-11-24 00:59:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:59:48,816 INFO L225 Difference]: With dead ends: 803 [2024-11-24 00:59:48,816 INFO L226 Difference]: Without dead ends: 581 [2024-11-24 00:59:48,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:59:48,818 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 660 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:59:48,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 882 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:59:48,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-24 00:59:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 508. [2024-11-24 00:59:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 460 states have (on average 1.3478260869565217) internal successors, (620), 460 states have internal predecessors, (620), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 00:59:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 698 transitions. [2024-11-24 00:59:48,896 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 698 transitions. Word has length 187 [2024-11-24 00:59:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:59:48,898 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 698 transitions. [2024-11-24 00:59:48,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (53), 4 states have call predecessors, (53), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-24 00:59:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 698 transitions. [2024-11-24 00:59:48,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 00:59:48,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:59:48,900 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:59:48,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:59:49,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-24 00:59:49,101 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:59:49,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:59:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1609270173, now seen corresponding path program 1 times [2024-11-24 00:59:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:59:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650985687] [2024-11-24 00:59:49,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:59:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 5 proven. 32 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-24 00:59:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:59:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650985687] [2024-11-24 00:59:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650985687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:59:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136772099] [2024-11-24 00:59:51,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:59:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:59:51,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:59:51,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:59:51,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:59:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:59:51,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 00:59:51,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:59:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 101 proven. 738 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-24 00:59:54,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:00:01,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136772099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:01,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:00:01,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16] total 25 [2024-11-24 01:00:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347411608] [2024-11-24 01:00:01,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:00:01,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:00:01,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:01,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:00:01,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 01:00:01,728 INFO L87 Difference]: Start difference. First operand 508 states and 698 transitions. Second operand has 25 states, 25 states have (on average 4.8) internal successors, (120), 25 states have internal predecessors, (120), 5 states have call successors, (52), 4 states have call predecessors, (52), 5 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52) [2024-11-24 01:00:04,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:00:04,602 INFO L93 Difference]: Finished difference Result 1394 states and 1889 transitions. [2024-11-24 01:00:04,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 01:00:04,603 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.8) internal successors, (120), 25 states have internal predecessors, (120), 5 states have call successors, (52), 4 states have call predecessors, (52), 5 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52) Word has length 187 [2024-11-24 01:00:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:00:04,605 INFO L225 Difference]: With dead ends: 1394 [2024-11-24 01:00:04,605 INFO L226 Difference]: Without dead ends: 991 [2024-11-24 01:00:04,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=599, Invalid=2941, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 01:00:04,608 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 828 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:00:04,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1027 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:00:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-24 01:00:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 779. [2024-11-24 01:00:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 698 states have (on average 1.322349570200573) internal successors, (923), 698 states have internal predecessors, (923), 65 states have call successors, (65), 15 states have call predecessors, (65), 15 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-24 01:00:04,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1053 transitions. [2024-11-24 01:00:04,697 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1053 transitions. Word has length 187 [2024-11-24 01:00:04,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:00:04,697 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1053 transitions. [2024-11-24 01:00:04,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.8) internal successors, (120), 25 states have internal predecessors, (120), 5 states have call successors, (52), 4 states have call predecessors, (52), 5 states have return successors, (52), 5 states have call predecessors, (52), 5 states have call successors, (52) [2024-11-24 01:00:04,698 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1053 transitions. [2024-11-24 01:00:04,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 01:00:04,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:04,700 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:00:04,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:00:04,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 01:00:04,901 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:04,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash -910689761, now seen corresponding path program 1 times [2024-11-24 01:00:04,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:04,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261915183] [2024-11-24 01:00:04,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:04,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:00:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-24 01:00:05,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:00:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261915183] [2024-11-24 01:00:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261915183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029896996] [2024-11-24 01:00:05,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:05,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:00:05,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:05,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:00:05,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:00:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:00:05,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:00:05,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:00:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-24 01:00:07,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:00:14,213 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_20~0 4294967296))) (and (or (= (mod c_~last_1_var_1_18~0 256) 0) (and (forall ((v_z_106 Int)) (or (< 4294967295 v_z_106) (forall ((v_z_111 Int) (v_y_111 Int)) (let ((.cse0 (* v_y_111 4294967296)) (.cse1 (* 4294967295 v_z_111))) (let ((.cse2 (+ .cse0 .cse1 .cse3))) (or (< 4294967295 (+ .cse0 .cse1)) (< v_z_111 0) (< (+ 4294967295 v_z_106) .cse2) (< .cse2 4294967296) (forall ((v_z_82 Int)) (or (< (+ v_z_111 .cse3) (+ (mod v_z_82 v_z_106) 4294967297)) (< 4294967295 v_z_82) (< v_z_82 0))) (< 4294967295 v_z_111))))))) (forall ((v_z_106 Int)) (or (< 4294967295 v_z_106) (forall ((v_z_111 Int) (v_y_111 Int)) (let ((.cse4 (* v_y_111 4294967296)) (.cse5 (* 4294967295 v_z_111))) (let ((.cse7 (+ .cse4 .cse5 .cse3)) (.cse6 (+ v_z_111 .cse3))) (or (< 4294967295 (+ .cse4 .cse5)) (forall ((v_z_82 Int)) (or (< .cse6 (+ (mod v_z_82 v_z_106) 1)) (< 4294967295 v_z_82) (< v_z_82 0))) (< v_z_111 0) (< (+ 4294967295 v_z_106) .cse7) (< .cse7 4294967296) (< 4294967295 .cse6))))))) (forall ((v_z_82 Int)) (or (forall ((v_z_110 Int)) (or (forall ((v_y_110 Int)) (let ((.cse9 (* v_y_110 4294967296)) (.cse10 (* 4294967295 v_z_110))) (let ((.cse8 (+ .cse9 .cse10))) (or (< .cse8 0) (< 4294967295 .cse8) (forall ((v_z_106 Int)) (or (< (+ v_z_110 .cse3) (+ (mod v_z_82 v_z_106) 4294967297)) (< 4294967295 v_z_106) (< v_z_106 (+ .cse9 .cse10 .cse3 1)))))))) (< 4294967295 v_z_110) (< v_z_110 0))) (< 4294967295 v_z_82) (< v_z_82 0))) (forall ((v_z_82 Int)) (or (forall ((v_z_110 Int)) (let ((.cse11 (+ v_z_110 .cse3))) (or (< v_z_110 0) (< 4294967295 .cse11) (forall ((v_z_106 Int) (v_y_110 Int)) (let ((.cse12 (* v_y_110 4294967296)) (.cse13 (* 4294967295 v_z_110))) (or (< (+ .cse12 .cse13) 0) (< 4294967295 v_z_106) (< v_z_106 (+ .cse12 .cse13 .cse3 1)) (< .cse11 (+ (mod v_z_82 v_z_106) 1)))))))) (< 4294967295 v_z_82) (< v_z_82 0))))) (or (and (forall ((v_z_89 Int)) (or (< 4294967295 v_z_89) (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 4294967295 v_z_81) (forall ((v_z_93 Int)) (let ((.cse14 (+ v_z_93 .cse3))) (or (< v_z_93 0) (< 4294967295 .cse14) (< .cse14 (+ (mod v_z_81 v_z_89) 1)) (forall ((v_y_93 Int)) (let ((.cse15 (* v_y_93 4294967296)) (.cse16 (* v_z_93 4294967295))) (let ((.cse17 (+ .cse15 .cse16 .cse3))) (or (< 4294967295 (+ .cse15 .cse16)) (< (+ v_z_89 4294967295) .cse17) (< .cse17 4294967296)))))))))) (< v_z_89 0))) (forall ((v_z_89 Int)) (or (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 4294967295 v_z_81) (forall ((v_z_93 Int)) (or (< (+ v_z_93 .cse3) (+ (mod v_z_81 v_z_89) 4294967297)) (< v_z_93 0) (< 4294967295 v_z_93) (forall ((v_y_93 Int)) (let ((.cse18 (* v_y_93 4294967296)) (.cse19 (* v_z_93 4294967295))) (let ((.cse20 (+ .cse18 .cse19 .cse3))) (or (< 4294967295 (+ .cse18 .cse19)) (< (+ v_z_89 4294967295) .cse20) (< .cse20 4294967296))))))))) (< 4294967295 v_z_89) (< v_z_89 0))) (forall ((v_z_89 Int)) (or (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 4294967295 v_z_81) (forall ((v_z_93 Int)) (or (< (+ v_z_93 .cse3) (+ (mod v_z_81 v_z_89) 4294967297)) (< v_z_93 0) (forall ((v_y_93 Int)) (let ((.cse21 (* v_y_93 4294967296)) (.cse22 (* v_z_93 4294967295))) (or (< v_z_89 (+ .cse21 .cse22 .cse3 1)) (< (+ .cse21 .cse22) 0)))) (< 4294967295 v_z_93))))) (< 4294967295 v_z_89) (< v_z_89 0))) (forall ((v_z_89 Int)) (or (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 4294967295 v_z_81) (forall ((v_z_93 Int)) (let ((.cse25 (+ v_z_93 .cse3))) (or (< v_z_93 0) (forall ((v_y_93 Int)) (let ((.cse23 (* v_y_93 4294967296)) (.cse24 (* v_z_93 4294967295))) (or (< v_z_89 (+ .cse23 .cse24 .cse3 1)) (< (+ .cse23 .cse24) 0)))) (< 4294967295 .cse25) (< .cse25 (+ (mod v_z_81 v_z_89) 1))))))) (< 4294967295 v_z_89) (< v_z_89 0)))) (= (mod c_~var_1_18~0 256) 0)) (or (= 64 c_~var_1_14~0) (and (forall ((v_z_96 Int)) (or (< 4294967295 v_z_96) (forall ((v_z_101 Int) (v_y_101 Int)) (let ((.cse26 (* v_y_101 4294967296)) (.cse27 (* 4294967295 v_z_101)) (.cse28 (+ v_z_101 .cse3))) (or (< v_z_96 (+ .cse26 .cse27 .cse3 1)) (< v_z_101 0) (forall ((v_z_80 Int)) (or (< 4294967295 v_z_80) (< v_z_80 0) (< .cse28 (+ (mod v_z_80 v_z_96) 1)))) (< (+ .cse26 .cse27) 0) (< 4294967295 .cse28)))))) (forall ((v_z_96 Int)) (or (< 4294967295 v_z_96) (forall ((v_z_102 Int) (v_y_102 Int)) (let ((.cse30 (* v_y_102 4294967296)) (.cse31 (* 4294967295 v_z_102))) (let ((.cse29 (+ .cse30 .cse31 .cse3))) (or (< (+ v_z_96 4294967295) .cse29) (forall ((v_z_80 Int)) (or (< 4294967295 v_z_80) (< v_z_80 0) (< (+ v_z_102 .cse3) (+ (mod v_z_80 v_z_96) 4294967297)))) (< v_z_102 0) (< 4294967295 v_z_102) (< 4294967295 (+ .cse30 .cse31)) (< .cse29 4294967296))))))) (forall ((v_z_96 Int)) (or (forall ((v_z_102 Int) (v_y_102 Int)) (let ((.cse34 (* v_y_102 4294967296)) (.cse35 (* 4294967295 v_z_102))) (let ((.cse33 (+ v_z_102 .cse3)) (.cse32 (+ .cse34 .cse35 .cse3))) (or (< (+ v_z_96 4294967295) .cse32) (< v_z_102 0) (< 4294967295 .cse33) (< 4294967295 (+ .cse34 .cse35)) (forall ((v_z_80 Int)) (or (< 4294967295 v_z_80) (< .cse33 (+ (mod v_z_80 v_z_96) 1)) (< v_z_80 0))) (< .cse32 4294967296))))) (< 4294967295 v_z_96))) (forall ((v_z_96 Int)) (or (< 4294967295 v_z_96) (forall ((v_z_101 Int) (v_y_101 Int)) (let ((.cse36 (* v_y_101 4294967296)) (.cse37 (* 4294967295 v_z_101))) (or (< 4294967295 v_z_101) (forall ((v_z_80 Int)) (or (< 4294967295 v_z_80) (< v_z_80 0) (< (+ v_z_101 .cse3) (+ (mod v_z_80 v_z_96) 4294967297)))) (< v_z_96 (+ .cse36 .cse37 .cse3 1)) (< v_z_101 0) (< (+ .cse36 .cse37) 0)))))))))) is different from false [2024-11-24 01:00:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-24 01:00:27,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029896996] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:00:27,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:00:27,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 10] total 22 [2024-11-24 01:00:27,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17969454] [2024-11-24 01:00:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:00:27,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:00:27,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:00:27,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:00:27,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=336, Unknown=2, NotChecked=38, Total=462 [2024-11-24 01:00:27,042 INFO L87 Difference]: Start difference. First operand 779 states and 1053 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 01:00:32,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:36,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:40,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:42,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:47,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:49,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:51,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:00:56,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:00,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:08,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:31,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:35,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:42,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:47,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:53,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:01:57,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:02,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:06,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:10,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:14,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:18,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:22,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 01:02:23,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:23,009 INFO L93 Difference]: Finished difference Result 1634 states and 2168 transitions. [2024-11-24 01:02:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:02:23,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 187 [2024-11-24 01:02:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:23,017 INFO L225 Difference]: With dead ends: 1634 [2024-11-24 01:02:23,017 INFO L226 Difference]: Without dead ends: 1360 [2024-11-24 01:02:23,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 39.2s TimeCoverageRelationStatistics Valid=159, Invalid=596, Unknown=5, NotChecked=52, Total=812 [2024-11-24 01:02:23,019 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 247 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 13 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 88.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:23,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 672 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 357 Invalid, 19 Unknown, 241 Unchecked, 88.9s Time] [2024-11-24 01:02:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-24 01:02:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 803. [2024-11-24 01:02:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 722 states have (on average 1.3254847645429362) internal successors, (957), 722 states have internal predecessors, (957), 65 states have call successors, (65), 15 states have call predecessors, (65), 15 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-24 01:02:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1087 transitions. [2024-11-24 01:02:23,208 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1087 transitions. Word has length 187 [2024-11-24 01:02:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:23,209 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1087 transitions. [2024-11-24 01:02:23,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 01:02:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1087 transitions. [2024-11-24 01:02:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 01:02:23,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:23,213 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:23,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:02:23,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-24 01:02:23,414 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:23,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1104811247, now seen corresponding path program 1 times [2024-11-24 01:02:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798169278] [2024-11-24 01:02:23,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-24 01:02:23,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:23,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798169278] [2024-11-24 01:02:23,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798169278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:23,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072555451] [2024-11-24 01:02:23,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:23,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:23,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:23,970 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:23,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742a6e00-c67d-4842-bb32-453f0d7fce7e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:02:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:24,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:02:24,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-24 01:02:25,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:02:48,622 WARN L286 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 499 DAG size of output: 481 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)