./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:57:13,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:57:13,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:57:13,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:57:13,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:57:13,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:57:13,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:57:13,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:57:13,429 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:57:13,429 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:57:13,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:57:13,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:57:13,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:57:13,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:57:13,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:57:13,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:57:13,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:57:13,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:57:13,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:57:13,431 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:13,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:13,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:57:13,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:57:13,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:57:13,433 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_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 [2024-11-28 04:57:13,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:57:13,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:57:13,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:57:13,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:57:13,751 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:57:13,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-28 04:57:16,839 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/data/3f5ebfe5b/3428ea1b9c9e419faf58409a48f35dce/FLAGf657ad286 [2024-11-28 04:57:17,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:57:17,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-28 04:57:17,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/data/3f5ebfe5b/3428ea1b9c9e419faf58409a48f35dce/FLAGf657ad286 [2024-11-28 04:57:17,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/data/3f5ebfe5b/3428ea1b9c9e419faf58409a48f35dce [2024-11-28 04:57:17,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:57:17,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:57:17,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:57:17,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:57:17,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:57:17,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b74606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17, skipping insertion in model container [2024-11-28 04:57:17,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:57:17,435 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_970235a8-f654-4d7c-baa5-bd8f9d5c6218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-28 04:57:17,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:57:17,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:57:17,582 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_970235a8-f654-4d7c-baa5-bd8f9d5c6218/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-28 04:57:17,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:57:17,648 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:57:17,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17 WrapperNode [2024-11-28 04:57:17,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:57:17,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:57:17,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:57:17,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:57:17,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,720 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-28 04:57:17,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:57:17,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:57:17,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:57:17,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:57:17,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,774 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-11-28 04:57:17,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:57:17,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:57:17,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:57:17,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:57:17,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (1/1) ... [2024-11-28 04:57:17,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:17,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:17,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:57:17,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:57:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:57:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:57:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:57:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:57:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:57:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:57:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:57:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:57:18,065 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:57:18,067 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:57:18,651 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-28 04:57:18,651 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:57:18,669 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:57:18,669 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:57:18,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:18 BoogieIcfgContainer [2024-11-28 04:57:18,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:57:18,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:57:18,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:57:18,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:57:18,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:57:17" (1/3) ... [2024-11-28 04:57:18,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb2ad10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:18, skipping insertion in model container [2024-11-28 04:57:18,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:17" (2/3) ... [2024-11-28 04:57:18,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb2ad10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:18, skipping insertion in model container [2024-11-28 04:57:18,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:18" (3/3) ... [2024-11-28 04:57:18,683 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-28 04:57:18,700 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:57:18,702 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-32.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:57:18,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:57:18,789 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;@556640b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:57:18,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:57:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:57:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:57:18,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:18,813 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:18,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:18,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2092387816, now seen corresponding path program 1 times [2024-11-28 04:57:18,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:18,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660667232] [2024-11-28 04:57:18,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:57:19,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:19,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660667232] [2024-11-28 04:57:19,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660667232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:19,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485259825] [2024-11-28 04:57:19,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:19,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:19,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:19,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:19,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:57:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:19,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:57:19,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:57:19,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:19,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485259825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:19,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:19,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:57:19,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733475788] [2024-11-28 04:57:19,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:19,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:57:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:19,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:57:19,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:57:19,632 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:57:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:19,670 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-28 04:57:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:57:19,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-11-28 04:57:19,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:19,682 INFO L225 Difference]: With dead ends: 191 [2024-11-28 04:57:19,683 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 04:57:19,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:57:19,691 INFO L435 NwaCegarLoop]: 132 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, 132 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 [2024-11-28 04:57:19,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:57:19,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 04:57:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-28 04:57:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:57:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-28 04:57:19,745 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-11-28 04:57:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:19,745 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-28 04:57:19,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:57:19,746 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-28 04:57:19,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:57:19,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:19,751 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:19,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:19,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:57:19,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:19,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857908, now seen corresponding path program 1 times [2024-11-28 04:57:19,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:19,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213013684] [2024-11-28 04:57:19,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:19,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:20,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:20,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213013684] [2024-11-28 04:57:20,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213013684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:20,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:20,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:57:20,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819776190] [2024-11-28 04:57:20,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:20,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:57:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:20,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:57:20,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:57:20,457 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:20,693 INFO L93 Difference]: Finished difference Result 318 states and 444 transitions. [2024-11-28 04:57:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:57:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-28 04:57:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:20,699 INFO L225 Difference]: With dead ends: 318 [2024-11-28 04:57:20,699 INFO L226 Difference]: Without dead ends: 226 [2024-11-28 04:57:20,699 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 [2024-11-28 04:57:20,703 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 213 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:20,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 368 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:57:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-28 04:57:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2024-11-28 04:57:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 154 states have internal predecessors, (198), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:57:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 270 transitions. [2024-11-28 04:57:20,760 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 270 transitions. Word has length 129 [2024-11-28 04:57:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:20,761 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 270 transitions. [2024-11-28 04:57:20,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 270 transitions. [2024-11-28 04:57:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:57:20,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:20,767 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:20,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:57:20,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:20,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 732352654, now seen corresponding path program 1 times [2024-11-28 04:57:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:20,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587517632] [2024-11-28 04:57:20,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:20,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:22,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:22,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587517632] [2024-11-28 04:57:22,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587517632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:22,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:22,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:57:22,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252394331] [2024-11-28 04:57:22,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:22,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:57:22,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:22,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:57:22,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:57:22,990 INFO L87 Difference]: Start difference. First operand 193 states and 270 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:24,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:24,124 INFO L93 Difference]: Finished difference Result 543 states and 762 transitions. [2024-11-28 04:57:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:57:24,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-28 04:57:24,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:24,128 INFO L225 Difference]: With dead ends: 543 [2024-11-28 04:57:24,128 INFO L226 Difference]: Without dead ends: 353 [2024-11-28 04:57:24,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:57:24,131 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:24,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 702 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:57:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-28 04:57:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2024-11-28 04:57:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 286 states have internal predecessors, (369), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:57:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 489 transitions. [2024-11-28 04:57:24,209 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 489 transitions. Word has length 137 [2024-11-28 04:57:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:24,209 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 489 transitions. [2024-11-28 04:57:24,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 489 transitions. [2024-11-28 04:57:24,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:57:24,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:24,212 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:24,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:57:24,213 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:24,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1144659733, now seen corresponding path program 1 times [2024-11-28 04:57:24,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:24,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563623321] [2024-11-28 04:57:24,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:24,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:29,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:29,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563623321] [2024-11-28 04:57:29,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563623321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:29,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:29,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 04:57:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088377829] [2024-11-28 04:57:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:29,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:57:29,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:29,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:57:29,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:57:29,720 INFO L87 Difference]: Start difference. First operand 349 states and 489 transitions. Second operand has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:57:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:36,838 INFO L93 Difference]: Finished difference Result 860 states and 1188 transitions. [2024-11-28 04:57:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:57:36,840 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 139 [2024-11-28 04:57:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:36,849 INFO L225 Difference]: With dead ends: 860 [2024-11-28 04:57:36,851 INFO L226 Difference]: Without dead ends: 514 [2024-11-28 04:57:36,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=234, Invalid=1098, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:57:36,855 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 749 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:36,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1191 Invalid, 1771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:57:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-28 04:57:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 447. [2024-11-28 04:57:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 359 states have (on average 1.2785515320334262) internal successors, (459), 363 states have internal predecessors, (459), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:57:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 619 transitions. [2024-11-28 04:57:36,967 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 619 transitions. Word has length 139 [2024-11-28 04:57:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:36,969 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 619 transitions. [2024-11-28 04:57:36,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:57:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 619 transitions. [2024-11-28 04:57:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:57:36,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:36,973 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:36,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:57:36,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:36,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 982324889, now seen corresponding path program 1 times [2024-11-28 04:57:36,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:36,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175762355] [2024-11-28 04:57:36,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:36,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 04:57:37,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:37,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175762355] [2024-11-28 04:57:37,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175762355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:37,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85978725] [2024-11-28 04:57:37,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:37,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:37,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:37,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:37,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:57:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:37,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:57:37,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:37,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85978725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:37,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-28 04:57:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514054885] [2024-11-28 04:57:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:37,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:57:37,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:37,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:57:37,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:57:37,509 INFO L87 Difference]: Start difference. First operand 447 states and 619 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:37,647 INFO L93 Difference]: Finished difference Result 889 states and 1230 transitions. [2024-11-28 04:57:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:57:37,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-28 04:57:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:37,654 INFO L225 Difference]: With dead ends: 889 [2024-11-28 04:57:37,654 INFO L226 Difference]: Without dead ends: 462 [2024-11-28 04:57:37,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:57:37,661 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:37,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:57:37,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-28 04:57:37,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-11-28 04:57:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 374 states have (on average 1.267379679144385) internal successors, (474), 378 states have internal predecessors, (474), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:57:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 634 transitions. [2024-11-28 04:57:37,757 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 634 transitions. Word has length 139 [2024-11-28 04:57:37,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:37,757 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 634 transitions. [2024-11-28 04:57:37,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:57:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 634 transitions. [2024-11-28 04:57:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:57:37,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:37,760 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:37,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:37,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:37,961 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:37,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -932708075, now seen corresponding path program 1 times [2024-11-28 04:57:37,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:37,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883699154] [2024-11-28 04:57:37,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:37,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:40,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:40,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883699154] [2024-11-28 04:57:40,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883699154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:40,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:40,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:57:40,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105153752] [2024-11-28 04:57:40,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:40,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:57:40,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:40,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:57:40,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:57:40,305 INFO L87 Difference]: Start difference. First operand 462 states and 634 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:57:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:43,601 INFO L93 Difference]: Finished difference Result 991 states and 1348 transitions. [2024-11-28 04:57:43,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:57:43,602 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-11-28 04:57:43,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:43,606 INFO L225 Difference]: With dead ends: 991 [2024-11-28 04:57:43,606 INFO L226 Difference]: Without dead ends: 549 [2024-11-28 04:57:43,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:57:43,611 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 393 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:43,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1140 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:57:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-28 04:57:43,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 381. [2024-11-28 04:57:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 316 states have internal predecessors, (400), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:57:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 520 transitions. [2024-11-28 04:57:43,687 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 520 transitions. Word has length 139 [2024-11-28 04:57:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:43,687 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 520 transitions. [2024-11-28 04:57:43,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:57:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 520 transitions. [2024-11-28 04:57:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 04:57:43,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:43,690 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:43,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:57:43,690 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:43,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:43,691 INFO L85 PathProgramCache]: Analyzing trace with hash 905958465, now seen corresponding path program 1 times [2024-11-28 04:57:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:43,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347290915] [2024-11-28 04:57:43,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:57:47,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:47,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347290915] [2024-11-28 04:57:47,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347290915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:47,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:47,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 04:57:47,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572429095] [2024-11-28 04:57:47,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:47,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:57:47,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:47,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:57:47,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:57:47,067 INFO L87 Difference]: Start difference. First operand 381 states and 520 transitions. Second operand has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:57:55,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:00,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:01,076 INFO L93 Difference]: Finished difference Result 745 states and 1009 transitions. [2024-11-28 04:58:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:58:01,077 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-28 04:58:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:01,079 INFO L225 Difference]: With dead ends: 745 [2024-11-28 04:58:01,080 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:58:01,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=217, Invalid=839, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:58:01,081 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 904 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 245 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:01,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1162 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1335 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2024-11-28 04:58:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:58:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 451. [2024-11-28 04:58:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 370 states have (on average 1.2648648648648648) internal successors, (468), 373 states have internal predecessors, (468), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:58:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 612 transitions. [2024-11-28 04:58:01,178 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 612 transitions. Word has length 140 [2024-11-28 04:58:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:01,179 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 612 transitions. [2024-11-28 04:58:01,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:58:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 612 transitions. [2024-11-28 04:58:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 04:58:01,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:01,181 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:01,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:58:01,181 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:01,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash -422264557, now seen corresponding path program 1 times [2024-11-28 04:58:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010048359] [2024-11-28 04:58:01,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:58:03,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:03,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010048359] [2024-11-28 04:58:03,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010048359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:03,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:03,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:58:03,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981299105] [2024-11-28 04:58:03,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:03,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:58:03,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:03,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:58:03,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:58:03,374 INFO L87 Difference]: Start difference. First operand 451 states and 612 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:58:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:06,193 INFO L93 Difference]: Finished difference Result 1011 states and 1372 transitions. [2024-11-28 04:58:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:58:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-11-28 04:58:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:06,199 INFO L225 Difference]: With dead ends: 1011 [2024-11-28 04:58:06,199 INFO L226 Difference]: Without dead ends: 563 [2024-11-28 04:58:06,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:58:06,201 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 272 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:06,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1050 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:58:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-28 04:58:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 466. [2024-11-28 04:58:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 388 states have internal predecessors, (491), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:58:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 635 transitions. [2024-11-28 04:58:06,332 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 635 transitions. Word has length 140 [2024-11-28 04:58:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:06,332 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 635 transitions. [2024-11-28 04:58:06,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:58:06,333 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 635 transitions. [2024-11-28 04:58:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:58:06,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:06,336 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:06,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:58:06,336 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:06,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1228664258, now seen corresponding path program 1 times [2024-11-28 04:58:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:06,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90107060] [2024-11-28 04:58:06,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:58:07,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90107060] [2024-11-28 04:58:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90107060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:07,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:07,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:58:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330507331] [2024-11-28 04:58:07,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:07,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:58:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:07,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:58:07,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:58:07,450 INFO L87 Difference]: Start difference. First operand 466 states and 635 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:58:08,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:08,768 INFO L93 Difference]: Finished difference Result 1105 states and 1501 transitions. [2024-11-28 04:58:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:58:08,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-28 04:58:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:08,773 INFO L225 Difference]: With dead ends: 1105 [2024-11-28 04:58:08,774 INFO L226 Difference]: Without dead ends: 642 [2024-11-28 04:58:08,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:58:08,776 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 347 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:08,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 549 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:58:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-28 04:58:08,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 504. [2024-11-28 04:58:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 423 states have (on average 1.2789598108747045) internal successors, (541), 426 states have internal predecessors, (541), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:58:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 685 transitions. [2024-11-28 04:58:08,874 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 685 transitions. Word has length 141 [2024-11-28 04:58:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:08,875 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 685 transitions. [2024-11-28 04:58:08,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:58:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 685 transitions. [2024-11-28 04:58:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:58:08,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:08,878 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:08,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:58:08,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:08,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:08,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1911355907, now seen corresponding path program 1 times [2024-11-28 04:58:08,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256415148] [2024-11-28 04:58:08,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:08,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:58:09,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:09,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256415148] [2024-11-28 04:58:09,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256415148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:09,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:09,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:58:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428538112] [2024-11-28 04:58:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:09,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:58:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:09,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:58:09,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:58:09,534 INFO L87 Difference]: Start difference. First operand 504 states and 685 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:58:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:10,047 INFO L93 Difference]: Finished difference Result 795 states and 1053 transitions. [2024-11-28 04:58:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:58:10,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-28 04:58:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:10,053 INFO L225 Difference]: With dead ends: 795 [2024-11-28 04:58:10,053 INFO L226 Difference]: Without dead ends: 793 [2024-11-28 04:58:10,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:58:10,057 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 51 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:10,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 810 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:58:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-28 04:58:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 786. [2024-11-28 04:58:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 680 states have (on average 1.2602941176470588) internal successors, (857), 688 states have internal predecessors, (857), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 04:58:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1041 transitions. [2024-11-28 04:58:10,266 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1041 transitions. Word has length 141 [2024-11-28 04:58:10,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:10,268 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1041 transitions. [2024-11-28 04:58:10,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:58:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1041 transitions. [2024-11-28 04:58:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:58:10,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:10,272 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:10,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:58:10,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:10,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1376374685, now seen corresponding path program 1 times [2024-11-28 04:58:10,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:10,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143731261] [2024-11-28 04:58:10,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:10,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:58:17,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:17,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143731261] [2024-11-28 04:58:17,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143731261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:17,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:17,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 04:58:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137173688] [2024-11-28 04:58:17,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:17,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:58:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:17,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:58:17,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:58:17,771 INFO L87 Difference]: Start difference. First operand 786 states and 1041 transitions. Second operand has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:58:25,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:33,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:38,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:53,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:58:54,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:06,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:07,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:09,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:21,276 WARN L286 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 150 DAG size of output: 144 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:59:25,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:29,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:44,212 WARN L286 SmtUtils]: Spent 12.25s on a formula simplification. DAG size of input: 154 DAG size of output: 148 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:59:45,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:02,095 WARN L286 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 161 DAG size of output: 155 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:00:18,909 WARN L286 SmtUtils]: Spent 15.71s on a formula simplification. DAG size of input: 166 DAG size of output: 160 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:00:23,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:25,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:31,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:36,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:39,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:48,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:55,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:00:58,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:02,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:05,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:10,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:13,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:15,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:17,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:23,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:25,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:27,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:30,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:32,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:36,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:43,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:47,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:49,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:52,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:01:55,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:01,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:03,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:07,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:10,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:13,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:18,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:30,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:32,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:39,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:40,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:41,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:46,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:48,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:54,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:59,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:05,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:09,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:16,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:19,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:26,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:27,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:29,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:03:30,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:30,024 INFO L93 Difference]: Finished difference Result 1740 states and 2293 transitions. [2024-11-28 05:03:30,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:03:30,025 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 141 [2024-11-28 05:03:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:30,031 INFO L225 Difference]: With dead ends: 1740 [2024-11-28 05:03:30,032 INFO L226 Difference]: Without dead ends: 957 [2024-11-28 05:03:30,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 97.7s TimeCoverageRelationStatistics Valid=248, Invalid=1230, Unknown=4, NotChecked=0, Total=1482 [2024-11-28 05:03:30,034 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 596 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 103 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 216.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:30,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1867 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2427 Invalid, 17 Unknown, 0 Unchecked, 216.3s Time] [2024-11-28 05:03:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-28 05:03:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 791. [2024-11-28 05:03:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 685 states have (on average 1.2583941605839417) internal successors, (862), 693 states have internal predecessors, (862), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 05:03:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2024-11-28 05:03:30,249 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 141 [2024-11-28 05:03:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:30,250 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2024-11-28 05:03:30,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 05:03:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2024-11-28 05:03:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 05:03:30,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:30,253 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:30,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:03:30,254 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:30,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:30,254 INFO L85 PathProgramCache]: Analyzing trace with hash 331365611, now seen corresponding path program 1 times [2024-11-28 05:03:30,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825239822] [2024-11-28 05:03:30,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:30,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:03:34,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:34,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825239822] [2024-11-28 05:03:34,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825239822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:34,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:34,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:03:34,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675498177] [2024-11-28 05:03:34,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:34,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:03:34,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:34,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:03:34,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:03:34,857 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:00,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:03,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:05,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:10,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:13,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:17,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:19,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:24,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:36,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:41,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:04:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:43,164 INFO L93 Difference]: Finished difference Result 1495 states and 1971 transitions. [2024-11-28 05:04:43,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:04:43,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-28 05:04:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:43,170 INFO L225 Difference]: With dead ends: 1495 [2024-11-28 05:04:43,171 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 05:04:43,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:04:43,173 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 626 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 159 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:43,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1329 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1267 Invalid, 4 Unknown, 0 Unchecked, 48.8s Time] [2024-11-28 05:04:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 05:04:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 923. [2024-11-28 05:04:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 791 states have (on average 1.2490518331226297) internal successors, (988), 801 states have internal predecessors, (988), 112 states have call successors, (112), 19 states have call predecessors, (112), 19 states have return successors, (112), 102 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-28 05:04:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1212 transitions. [2024-11-28 05:04:43,485 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1212 transitions. Word has length 141 [2024-11-28 05:04:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:43,485 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1212 transitions. [2024-11-28 05:04:43,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:43,486 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1212 transitions. [2024-11-28 05:04:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 05:04:43,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:43,488 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:43,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:04:43,489 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:43,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:43,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1357578131, now seen corresponding path program 1 times [2024-11-28 05:04:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:43,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758401858] [2024-11-28 05:04:43,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:04:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758401858] [2024-11-28 05:04:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758401858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:46,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:46,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:04:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389362177] [2024-11-28 05:04:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:46,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:04:46,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:46,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:04:46,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:04:46,972 INFO L87 Difference]: Start difference. First operand 923 states and 1212 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:53,020 INFO L93 Difference]: Finished difference Result 1896 states and 2488 transitions. [2024-11-28 05:04:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:04:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-28 05:04:53,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:53,027 INFO L225 Difference]: With dead ends: 1896 [2024-11-28 05:04:53,027 INFO L226 Difference]: Without dead ends: 976 [2024-11-28 05:04:53,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2024-11-28 05:04:53,030 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 818 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:53,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1186 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 05:04:53,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-28 05:04:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 930. [2024-11-28 05:04:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 793 states have (on average 1.2459016393442623) internal successors, (988), 803 states have internal predecessors, (988), 116 states have call successors, (116), 20 states have call predecessors, (116), 20 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 05:04:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1220 transitions. [2024-11-28 05:04:53,350 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1220 transitions. Word has length 141 [2024-11-28 05:04:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:53,351 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1220 transitions. [2024-11-28 05:04:53,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1220 transitions. [2024-11-28 05:04:53,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 05:04:53,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:53,354 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:53,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:04:53,354 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:53,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1250866724, now seen corresponding path program 1 times [2024-11-28 05:04:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642036853] [2024-11-28 05:04:53,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:04:55,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:55,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642036853] [2024-11-28 05:04:55,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642036853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:04:55,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221189081] [2024-11-28 05:04:55,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:55,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:04:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:55,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:04:55,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:04:55,177 INFO L87 Difference]: Start difference. First operand 930 states and 1220 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:58,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:58,805 INFO L93 Difference]: Finished difference Result 1873 states and 2452 transitions. [2024-11-28 05:04:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:04:58,805 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-28 05:04:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:58,811 INFO L225 Difference]: With dead ends: 1873 [2024-11-28 05:04:58,811 INFO L226 Difference]: Without dead ends: 946 [2024-11-28 05:04:58,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:04:58,814 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 173 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:58,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1776 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:04:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-28 05:04:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 926. [2024-11-28 05:04:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 789 states have (on average 1.2420785804816223) internal successors, (980), 799 states have internal predecessors, (980), 116 states have call successors, (116), 20 states have call predecessors, (116), 20 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 05:04:59,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1212 transitions. [2024-11-28 05:04:59,204 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1212 transitions. Word has length 141 [2024-11-28 05:04:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:59,205 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1212 transitions. [2024-11-28 05:04:59,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:04:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1212 transitions. [2024-11-28 05:04:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 05:04:59,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:59,208 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:59,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:04:59,208 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:59,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2022448247, now seen corresponding path program 1 times [2024-11-28 05:04:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:59,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873023051] [2024-11-28 05:04:59,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:59,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:03,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873023051] [2024-11-28 05:05:03,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873023051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:03,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:03,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 05:05:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946023078] [2024-11-28 05:05:03,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:03,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:05:03,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:03,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:05:03,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:05:03,505 INFO L87 Difference]: Start difference. First operand 926 states and 1212 transitions. Second operand has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 05:05:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:09,785 INFO L93 Difference]: Finished difference Result 1965 states and 2566 transitions. [2024-11-28 05:05:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:05:09,786 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2024-11-28 05:05:09,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:09,792 INFO L225 Difference]: With dead ends: 1965 [2024-11-28 05:05:09,792 INFO L226 Difference]: Without dead ends: 1042 [2024-11-28 05:05:09,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=228, Invalid=962, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:05:09,796 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 593 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:09,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1301 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 05:05:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-28 05:05:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 916. [2024-11-28 05:05:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 779 states have (on average 1.2426187419768935) internal successors, (968), 789 states have internal predecessors, (968), 116 states have call successors, (116), 20 states have call predecessors, (116), 20 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 05:05:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1200 transitions. [2024-11-28 05:05:10,124 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1200 transitions. Word has length 142 [2024-11-28 05:05:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:10,125 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1200 transitions. [2024-11-28 05:05:10,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 05:05:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1200 transitions. [2024-11-28 05:05:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 05:05:10,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:10,127 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:10,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:05:10,128 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:10,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1307651178, now seen corresponding path program 1 times [2024-11-28 05:05:10,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:10,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870954825] [2024-11-28 05:05:10,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:10,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:10,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870954825] [2024-11-28 05:05:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870954825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:10,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:10,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:05:10,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557656477] [2024-11-28 05:05:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:10,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:05:10,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:10,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:05:10,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:05:10,651 INFO L87 Difference]: Start difference. First operand 916 states and 1200 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:11,501 INFO L93 Difference]: Finished difference Result 1828 states and 2400 transitions. [2024-11-28 05:05:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:05:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-11-28 05:05:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:11,507 INFO L225 Difference]: With dead ends: 1828 [2024-11-28 05:05:11,508 INFO L226 Difference]: Without dead ends: 1250 [2024-11-28 05:05:11,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:05:11,510 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 74 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:11,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 990 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:05:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-28 05:05:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1173. [2024-11-28 05:05:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1012 states have (on average 1.2529644268774704) internal successors, (1268), 1026 states have internal predecessors, (1268), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1540 transitions. [2024-11-28 05:05:11,766 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1540 transitions. Word has length 142 [2024-11-28 05:05:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:11,767 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1540 transitions. [2024-11-28 05:05:11,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1540 transitions. [2024-11-28 05:05:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 05:05:11,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:11,769 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:11,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:05:11,769 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:11,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1159940751, now seen corresponding path program 1 times [2024-11-28 05:05:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516644536] [2024-11-28 05:05:11,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516644536] [2024-11-28 05:05:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516644536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:15,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:15,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:05:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684515485] [2024-11-28 05:05:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:15,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:05:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:15,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:05:15,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:05:15,114 INFO L87 Difference]: Start difference. First operand 1173 states and 1540 transitions. Second operand has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:23,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:23,458 INFO L93 Difference]: Finished difference Result 2175 states and 2855 transitions. [2024-11-28 05:05:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:05:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-11-28 05:05:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:23,465 INFO L225 Difference]: With dead ends: 2175 [2024-11-28 05:05:23,465 INFO L226 Difference]: Without dead ends: 1356 [2024-11-28 05:05:23,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=202, Invalid=988, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:05:23,468 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 650 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:23,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 2044 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-28 05:05:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-11-28 05:05:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1189. [2024-11-28 05:05:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1028 states have (on average 1.2529182879377432) internal successors, (1288), 1042 states have internal predecessors, (1288), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1560 transitions. [2024-11-28 05:05:23,819 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1560 transitions. Word has length 142 [2024-11-28 05:05:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:23,819 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1560 transitions. [2024-11-28 05:05:23,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1560 transitions. [2024-11-28 05:05:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 05:05:23,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:23,821 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:23,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:05:23,821 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:23,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2031090635, now seen corresponding path program 1 times [2024-11-28 05:05:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845598251] [2024-11-28 05:05:23,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:24,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:24,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845598251] [2024-11-28 05:05:24,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845598251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:24,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:24,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:05:24,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883161032] [2024-11-28 05:05:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:24,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:24,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:24,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:24,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:24,268 INFO L87 Difference]: Start difference. First operand 1189 states and 1560 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:25,177 INFO L93 Difference]: Finished difference Result 2850 states and 3739 transitions. [2024-11-28 05:05:25,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:25,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-28 05:05:25,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:25,184 INFO L225 Difference]: With dead ends: 2850 [2024-11-28 05:05:25,184 INFO L226 Difference]: Without dead ends: 1664 [2024-11-28 05:05:25,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:05:25,187 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 74 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:25,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 571 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:05:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2024-11-28 05:05:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1359. [2024-11-28 05:05:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1198 states have (on average 1.2487479131886476) internal successors, (1496), 1212 states have internal predecessors, (1496), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1768 transitions. [2024-11-28 05:05:25,479 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1768 transitions. Word has length 143 [2024-11-28 05:05:25,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:25,479 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1768 transitions. [2024-11-28 05:05:25,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1768 transitions. [2024-11-28 05:05:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 05:05:25,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:25,482 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:25,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:05:25,482 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:25,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1120267628, now seen corresponding path program 1 times [2024-11-28 05:05:25,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:25,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911921611] [2024-11-28 05:05:25,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:25,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:25,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:25,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911921611] [2024-11-28 05:05:25,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911921611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:25,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:25,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:25,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714524569] [2024-11-28 05:05:25,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:25,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:25,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:25,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:25,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:25,703 INFO L87 Difference]: Start difference. First operand 1359 states and 1768 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:26,252 INFO L93 Difference]: Finished difference Result 3113 states and 4041 transitions. [2024-11-28 05:05:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-28 05:05:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:26,260 INFO L225 Difference]: With dead ends: 3113 [2024-11-28 05:05:26,260 INFO L226 Difference]: Without dead ends: 1757 [2024-11-28 05:05:26,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:26,264 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:26,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 614 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-11-28 05:05:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1487. [2024-11-28 05:05:26,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1326 states have (on average 1.2435897435897436) internal successors, (1649), 1340 states have internal predecessors, (1649), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1921 transitions. [2024-11-28 05:05:26,664 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1921 transitions. Word has length 143 [2024-11-28 05:05:26,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:26,665 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 1921 transitions. [2024-11-28 05:05:26,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1921 transitions. [2024-11-28 05:05:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 05:05:26,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:26,667 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:26,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:05:26,668 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:26,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -845276229, now seen corresponding path program 1 times [2024-11-28 05:05:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:26,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232200278] [2024-11-28 05:05:26,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:26,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232200278] [2024-11-28 05:05:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232200278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24440811] [2024-11-28 05:05:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:26,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:26,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:26,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:26,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:26,945 INFO L87 Difference]: Start difference. First operand 1487 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:27,380 INFO L93 Difference]: Finished difference Result 3241 states and 4179 transitions. [2024-11-28 05:05:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:27,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-28 05:05:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:27,389 INFO L225 Difference]: With dead ends: 3241 [2024-11-28 05:05:27,389 INFO L226 Difference]: Without dead ends: 1757 [2024-11-28 05:05:27,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:27,395 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 53 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:27,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 611 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-11-28 05:05:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1487. [2024-11-28 05:05:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1326 states have (on average 1.237556561085973) internal successors, (1641), 1340 states have internal predecessors, (1641), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1913 transitions. [2024-11-28 05:05:27,825 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1913 transitions. Word has length 143 [2024-11-28 05:05:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:27,826 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 1913 transitions. [2024-11-28 05:05:27,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1913 transitions. [2024-11-28 05:05:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 05:05:27,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:27,827 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:27,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:05:27,828 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:27,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:27,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1861343165, now seen corresponding path program 1 times [2024-11-28 05:05:27,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:27,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69563683] [2024-11-28 05:05:27,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:27,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:30,595 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:30,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:30,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69563683] [2024-11-28 05:05:30,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69563683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:30,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:30,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 05:05:30,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108894467] [2024-11-28 05:05:30,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:30,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 05:05:30,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:30,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 05:05:30,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:05:30,597 INFO L87 Difference]: Start difference. First operand 1487 states and 1913 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:37,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:37,581 INFO L93 Difference]: Finished difference Result 3312 states and 4245 transitions. [2024-11-28 05:05:37,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:05:37,582 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-11-28 05:05:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:37,590 INFO L225 Difference]: With dead ends: 3312 [2024-11-28 05:05:37,590 INFO L226 Difference]: Without dead ends: 1828 [2024-11-28 05:05:37,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=234, Invalid=1026, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 05:05:37,593 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 666 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:37,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1484 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 05:05:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2024-11-28 05:05:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1483. [2024-11-28 05:05:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1322 states have (on average 1.235249621785174) internal successors, (1633), 1336 states have internal predecessors, (1633), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 122 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-28 05:05:38,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1905 transitions. [2024-11-28 05:05:38,047 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1905 transitions. Word has length 143 [2024-11-28 05:05:38,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:38,047 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 1905 transitions. [2024-11-28 05:05:38,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1905 transitions. [2024-11-28 05:05:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 05:05:38,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:38,049 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:38,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:05:38,050 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:38,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash -170183969, now seen corresponding path program 1 times [2024-11-28 05:05:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:38,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493649652] [2024-11-28 05:05:38,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:38,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:38,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493649652] [2024-11-28 05:05:38,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493649652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:38,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:38,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:05:38,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501741542] [2024-11-28 05:05:38,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:38,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:38,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:38,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:38,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:38,523 INFO L87 Difference]: Start difference. First operand 1483 states and 1905 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:39,426 INFO L93 Difference]: Finished difference Result 3087 states and 3966 transitions. [2024-11-28 05:05:39,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:05:39,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 05:05:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:39,433 INFO L225 Difference]: With dead ends: 3087 [2024-11-28 05:05:39,433 INFO L226 Difference]: Without dead ends: 1607 [2024-11-28 05:05:39,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:05:39,438 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:39,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 523 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:05:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-28 05:05:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1215. [2024-11-28 05:05:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1044 states have (on average 1.2298850574712643) internal successors, (1284), 1055 states have internal predecessors, (1284), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 133 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 05:05:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1572 transitions. [2024-11-28 05:05:39,745 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1572 transitions. Word has length 144 [2024-11-28 05:05:39,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:39,745 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1572 transitions. [2024-11-28 05:05:39,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1572 transitions. [2024-11-28 05:05:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 05:05:39,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:39,748 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:39,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:05:39,748 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:39,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1427935694, now seen corresponding path program 1 times [2024-11-28 05:05:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677634887] [2024-11-28 05:05:39,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 05:05:39,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677634887] [2024-11-28 05:05:39,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677634887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96685728] [2024-11-28 05:05:39,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:39,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:39,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:39,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:05:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:40,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:05:40,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:40,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:05:40,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96685728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:40,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:05:40,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-28 05:05:40,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404925252] [2024-11-28 05:05:40,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:40,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:05:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:40,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:05:40,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:05:40,348 INFO L87 Difference]: Start difference. First operand 1215 states and 1572 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:40,745 INFO L93 Difference]: Finished difference Result 2507 states and 3234 transitions. [2024-11-28 05:05:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:05:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 05:05:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:40,750 INFO L225 Difference]: With dead ends: 2507 [2024-11-28 05:05:40,750 INFO L226 Difference]: Without dead ends: 1295 [2024-11-28 05:05:40,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:05:40,752 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:40,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-28 05:05:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1236. [2024-11-28 05:05:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1065 states have (on average 1.2253521126760563) internal successors, (1305), 1076 states have internal predecessors, (1305), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 133 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 05:05:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1593 transitions. [2024-11-28 05:05:41,286 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1593 transitions. Word has length 144 [2024-11-28 05:05:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:41,287 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1593 transitions. [2024-11-28 05:05:41,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1593 transitions. [2024-11-28 05:05:41,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 05:05:41,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:41,290 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:41,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:05:41,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970235a8-f654-4d7c-baa5-bd8f9d5c6218/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 05:05:41,491 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:41,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:41,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1820962704, now seen corresponding path program 1 times [2024-11-28 05:05:41,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:41,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900647759] [2024-11-28 05:05:41,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:41,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:41,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900647759] [2024-11-28 05:05:41,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900647759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:41,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:41,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:41,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135340786] [2024-11-28 05:05:41,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:41,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:41,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:41,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:41,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:41,692 INFO L87 Difference]: Start difference. First operand 1236 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:42,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:42,140 INFO L93 Difference]: Finished difference Result 2092 states and 2700 transitions. [2024-11-28 05:05:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 05:05:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:42,147 INFO L225 Difference]: With dead ends: 2092 [2024-11-28 05:05:42,147 INFO L226 Difference]: Without dead ends: 1263 [2024-11-28 05:05:42,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:42,149 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 40 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:42,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-28 05:05:42,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1219. [2024-11-28 05:05:42,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1048 states have (on average 1.2204198473282444) internal successors, (1279), 1059 states have internal predecessors, (1279), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 133 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 05:05:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1567 transitions. [2024-11-28 05:05:42,492 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1567 transitions. Word has length 144 [2024-11-28 05:05:42,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:42,492 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1567 transitions. [2024-11-28 05:05:42,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1567 transitions. [2024-11-28 05:05:42,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:05:42,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:42,494 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:42,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 05:05:42,495 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:42,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:42,495 INFO L85 PathProgramCache]: Analyzing trace with hash 771515590, now seen corresponding path program 1 times [2024-11-28 05:05:42,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:42,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164993755] [2024-11-28 05:05:42,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:42,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:42,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:42,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164993755] [2024-11-28 05:05:42,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164993755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:42,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:42,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:42,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344023995] [2024-11-28 05:05:42,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:42,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:42,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:42,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:42,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:42,784 INFO L87 Difference]: Start difference. First operand 1219 states and 1567 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:43,801 INFO L93 Difference]: Finished difference Result 2408 states and 3083 transitions. [2024-11-28 05:05:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:43,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 05:05:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:43,807 INFO L225 Difference]: With dead ends: 2408 [2024-11-28 05:05:43,807 INFO L226 Difference]: Without dead ends: 1192 [2024-11-28 05:05:43,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:43,810 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 62 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:43,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 465 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:05:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-28 05:05:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1064. [2024-11-28 05:05:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 916 states have (on average 1.2085152838427948) internal successors, (1107), 925 states have internal predecessors, (1107), 124 states have call successors, (124), 23 states have call predecessors, (124), 23 states have return successors, (124), 115 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 05:05:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1355 transitions. [2024-11-28 05:05:44,171 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1355 transitions. Word has length 145 [2024-11-28 05:05:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:44,172 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1355 transitions. [2024-11-28 05:05:44,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1355 transitions. [2024-11-28 05:05:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:05:44,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:44,174 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:44,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 05:05:44,174 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 758231866, now seen corresponding path program 1 times [2024-11-28 05:05:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406970774] [2024-11-28 05:05:44,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:44,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406970774] [2024-11-28 05:05:44,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406970774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:44,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:44,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:05:44,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672707064] [2024-11-28 05:05:44,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:44,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:05:44,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:44,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:05:44,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:05:44,751 INFO L87 Difference]: Start difference. First operand 1064 states and 1355 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:45,543 INFO L93 Difference]: Finished difference Result 1963 states and 2499 transitions. [2024-11-28 05:05:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:05:45,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 05:05:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:45,549 INFO L225 Difference]: With dead ends: 1963 [2024-11-28 05:05:45,549 INFO L226 Difference]: Without dead ends: 1292 [2024-11-28 05:05:45,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:05:45,551 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 69 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:45,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1326 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:05:45,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-28 05:05:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1134. [2024-11-28 05:05:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 986 states have (on average 1.2160243407707911) internal successors, (1199), 995 states have internal predecessors, (1199), 124 states have call successors, (124), 23 states have call predecessors, (124), 23 states have return successors, (124), 115 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 05:05:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1447 transitions. [2024-11-28 05:05:45,860 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1447 transitions. Word has length 145 [2024-11-28 05:05:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:45,860 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1447 transitions. [2024-11-28 05:05:45,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1447 transitions. [2024-11-28 05:05:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:05:45,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:45,862 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:45,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 05:05:45,862 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:45,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1047206468, now seen corresponding path program 1 times [2024-11-28 05:05:45,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:45,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628654896] [2024-11-28 05:05:45,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:45,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:46,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:46,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628654896] [2024-11-28 05:05:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628654896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:46,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:46,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:46,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192198291] [2024-11-28 05:05:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:46,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:46,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:46,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:46,092 INFO L87 Difference]: Start difference. First operand 1134 states and 1447 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:46,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:46,507 INFO L93 Difference]: Finished difference Result 2389 states and 3037 transitions. [2024-11-28 05:05:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:46,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 05:05:46,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:46,513 INFO L225 Difference]: With dead ends: 2389 [2024-11-28 05:05:46,513 INFO L226 Difference]: Without dead ends: 1258 [2024-11-28 05:05:46,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:46,516 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 42 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:46,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 617 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:46,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-28 05:05:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1119. [2024-11-28 05:05:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 971 states have (on average 1.212152420185376) internal successors, (1177), 980 states have internal predecessors, (1177), 124 states have call successors, (124), 23 states have call predecessors, (124), 23 states have return successors, (124), 115 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 05:05:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1425 transitions. [2024-11-28 05:05:46,931 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1425 transitions. Word has length 145 [2024-11-28 05:05:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:46,932 INFO L471 AbstractCegarLoop]: Abstraction has 1119 states and 1425 transitions. [2024-11-28 05:05:46,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:05:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1425 transitions. [2024-11-28 05:05:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:05:46,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:46,934 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:46,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 05:05:46,934 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:46,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:46,934 INFO L85 PathProgramCache]: Analyzing trace with hash -118147956, now seen corresponding path program 1 times [2024-11-28 05:05:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161280107] [2024-11-28 05:05:46,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161280107] [2024-11-28 05:05:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161280107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:47,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:47,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:05:47,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271452045] [2024-11-28 05:05:47,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:47,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:05:47,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:47,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:05:47,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:05:47,474 INFO L87 Difference]: Start difference. First operand 1119 states and 1425 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:48,544 INFO L93 Difference]: Finished difference Result 2510 states and 3184 transitions. [2024-11-28 05:05:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:05:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-28 05:05:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:48,556 INFO L225 Difference]: With dead ends: 2510 [2024-11-28 05:05:48,556 INFO L226 Difference]: Without dead ends: 1394 [2024-11-28 05:05:48,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:05:48,563 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 205 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:48,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 361 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:05:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-28 05:05:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1162. [2024-11-28 05:05:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 995 states have (on average 1.1959798994974875) internal successors, (1190), 1006 states have internal predecessors, (1190), 140 states have call successors, (140), 26 states have call predecessors, (140), 26 states have return successors, (140), 129 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-28 05:05:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1470 transitions. [2024-11-28 05:05:49,046 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1470 transitions. Word has length 145 [2024-11-28 05:05:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:49,047 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1470 transitions. [2024-11-28 05:05:49,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:05:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1470 transitions. [2024-11-28 05:05:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:05:49,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:49,050 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:49,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 05:05:49,050 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:49,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1026702444, now seen corresponding path program 1 times [2024-11-28 05:05:49,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:49,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251494442] [2024-11-28 05:05:49,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:49,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:52,255 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:05:52,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:52,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251494442] [2024-11-28 05:05:52,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251494442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:52,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:52,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-28 05:05:52,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45448722] [2024-11-28 05:05:52,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:52,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 05:05:52,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:52,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 05:05:52,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:05:52,258 INFO L87 Difference]: Start difference. First operand 1162 states and 1470 transitions. Second operand has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 05:06:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:02,687 INFO L93 Difference]: Finished difference Result 1545 states and 1927 transitions. [2024-11-28 05:06:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 05:06:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 147 [2024-11-28 05:06:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:02,693 INFO L225 Difference]: With dead ends: 1545 [2024-11-28 05:06:02,693 INFO L226 Difference]: Without dead ends: 1543 [2024-11-28 05:06:02,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=581, Invalid=3975, Unknown=0, NotChecked=0, Total=4556 [2024-11-28 05:06:02,695 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 868 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:02,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 1869 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 05:06:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-28 05:06:03,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1302. [2024-11-28 05:06:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1125 states have (on average 1.1857777777777778) internal successors, (1334), 1138 states have internal predecessors, (1334), 148 states have call successors, (148), 28 states have call predecessors, (148), 28 states have return successors, (148), 135 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-28 05:06:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1630 transitions. [2024-11-28 05:06:03,040 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1630 transitions. Word has length 147 [2024-11-28 05:06:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:03,040 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1630 transitions. [2024-11-28 05:06:03,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 05:06:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1630 transitions. [2024-11-28 05:06:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:06:03,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:03,041 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:03,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 05:06:03,042 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:03,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2084066237, now seen corresponding path program 1 times [2024-11-28 05:06:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:03,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140424663] [2024-11-28 05:06:03,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:03,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:06:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140424663] [2024-11-28 05:06:03,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140424663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:03,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:03,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:06:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561940360] [2024-11-28 05:06:03,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:03,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:06:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:03,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:06:03,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:06:03,870 INFO L87 Difference]: Start difference. First operand 1302 states and 1630 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:06:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:06,114 INFO L93 Difference]: Finished difference Result 2899 states and 3617 transitions. [2024-11-28 05:06:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:06:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-28 05:06:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:06,120 INFO L225 Difference]: With dead ends: 2899 [2024-11-28 05:06:06,120 INFO L226 Difference]: Without dead ends: 1600 [2024-11-28 05:06:06,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:06:06,126 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 412 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:06,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 859 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:06:06,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-28 05:06:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1335. [2024-11-28 05:06:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1158 states have (on average 1.1813471502590673) internal successors, (1368), 1171 states have internal predecessors, (1368), 148 states have call successors, (148), 28 states have call predecessors, (148), 28 states have return successors, (148), 135 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-28 05:06:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1664 transitions. [2024-11-28 05:06:06,651 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1664 transitions. Word has length 147 [2024-11-28 05:06:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:06,651 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1664 transitions. [2024-11-28 05:06:06,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 05:06:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1664 transitions. [2024-11-28 05:06:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:06:06,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:06,652 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:06,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 05:06:06,653 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1462826518, now seen corresponding path program 1 times [2024-11-28 05:06:06,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783569130] [2024-11-28 05:06:06,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:06,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:06:06,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:06,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783569130] [2024-11-28 05:06:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783569130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:06,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:06:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49579938] [2024-11-28 05:06:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:06,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:06:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:06,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:06:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:06:06,783 INFO L87 Difference]: Start difference. First operand 1335 states and 1664 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:06:07,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:07,269 INFO L93 Difference]: Finished difference Result 2982 states and 3695 transitions. [2024-11-28 05:06:07,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:06:07,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 05:06:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:07,277 INFO L225 Difference]: With dead ends: 2982 [2024-11-28 05:06:07,277 INFO L226 Difference]: Without dead ends: 1650 [2024-11-28 05:06:07,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:06:07,280 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 31 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:07,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:06:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-28 05:06:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1552. [2024-11-28 05:06:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1375 states have (on average 1.1803636363636363) internal successors, (1623), 1388 states have internal predecessors, (1623), 148 states have call successors, (148), 28 states have call predecessors, (148), 28 states have return successors, (148), 135 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-28 05:06:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1919 transitions. [2024-11-28 05:06:07,648 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1919 transitions. Word has length 147 [2024-11-28 05:06:07,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:07,648 INFO L471 AbstractCegarLoop]: Abstraction has 1552 states and 1919 transitions. [2024-11-28 05:06:07,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 05:06:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1919 transitions. [2024-11-28 05:06:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 05:06:07,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:07,650 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:07,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 05:06:07,650 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:07,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:07,651 INFO L85 PathProgramCache]: Analyzing trace with hash -364949336, now seen corresponding path program 1 times [2024-11-28 05:06:07,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:07,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075444419] [2024-11-28 05:06:07,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:07,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:15,526 WARN L286 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:09:15,282 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:09:27,500 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:09:33,947 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:09:40,190 WARN L286 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:10:17,492 WARN L286 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:10:25,916 WARN L286 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:10:43,470 WARN L286 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:11:13,413 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:11:26,551 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)