./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:13:58,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:13:58,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:13:58,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:13:58,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:13:58,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:13:58,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:13:58,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:13:58,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:13:58,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:13:58,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:13:58,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:13:58,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:13:58,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:13:58,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:13:58,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:13:58,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:13:58,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:13:58,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:13:58,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:58,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:58,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:58,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:58,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:13:58,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:58,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:58,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:58,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:58,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:13:58,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:13:58,573 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:13:58,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:13:58,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:13:58,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:13:58,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:13:58,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:13:58,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:13:58,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:13:58,574 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_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a [2024-11-24 01:13:58,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:13:58,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:13:58,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:13:58,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:13:58,920 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:13:58,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-11-24 01:14:02,194 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/data/d75befcd6/030bc52ee1bc4d69ae99f2de18b645cf/FLAG1924572ba [2024-11-24 01:14:02,490 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:14:02,491 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-11-24 01:14:02,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/data/d75befcd6/030bc52ee1bc4d69ae99f2de18b645cf/FLAG1924572ba [2024-11-24 01:14:02,518 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/data/d75befcd6/030bc52ee1bc4d69ae99f2de18b645cf [2024-11-24 01:14:02,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:14:02,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:14:02,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:14:02,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:14:02,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:14:02,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02, skipping insertion in model container [2024-11-24 01:14:02,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:14:02,709 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_9609d7c2-4614-4edd-bf5d-d504568fb603/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i[916,929] [2024-11-24 01:14:02,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:14:02,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:14:02,794 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_9609d7c2-4614-4edd-bf5d-d504568fb603/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i[916,929] [2024-11-24 01:14:02,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:14:02,851 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:14:02,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02 WrapperNode [2024-11-24 01:14:02,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:14:02,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:14:02,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:14:02,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:14:02,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,968 INFO L138 Inliner]: procedures = 26, calls = 160, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 459 [2024-11-24 01:14:02,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:14:02,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:14:02,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:14:02,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:14:02,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:02,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,045 INFO L175 MemorySlicer]: Split 123 memory accesses to 13 slices as follows [2, 7, 10, 8, 14, 8, 16, 8, 8, 14, 8, 13, 7]. 13 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 2, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1]. [2024-11-24 01:14:03,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:14:03,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:14:03,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:14:03,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:14:03,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (1/1) ... [2024-11-24 01:14:03,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:14:03,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:03,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:14:03,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:14:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:14:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:14:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:14:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:14:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:14:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:14:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 01:14:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 01:14:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:14:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:14:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:14:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:14:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:14:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:14:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:14:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:14:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:14:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:14:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:14:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 01:14:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 01:14:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:14:03,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:14:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:14:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:14:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 01:14:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:14:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:14:03,491 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:14:03,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:14:04,233 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-24 01:14:04,233 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:14:04,249 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:14:04,250 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:14:04,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:14:04 BoogieIcfgContainer [2024-11-24 01:14:04,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:14:04,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:14:04,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:14:04,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:14:04,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:14:02" (1/3) ... [2024-11-24 01:14:04,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109f0675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:14:04, skipping insertion in model container [2024-11-24 01:14:04,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:02" (2/3) ... [2024-11-24 01:14:04,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109f0675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:14:04, skipping insertion in model container [2024-11-24 01:14:04,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:14:04" (3/3) ... [2024-11-24 01:14:04,261 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-66.i [2024-11-24 01:14:04,281 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:14:04,287 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-66.i that has 2 procedures, 86 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:14:04,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:14:04,396 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;@1a08bdc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:14:04,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:14:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:14:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:14:04,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:04,424 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:04,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:04,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash 566813761, now seen corresponding path program 1 times [2024-11-24 01:14:04,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:04,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895864117] [2024-11-24 01:14:04,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:14:04,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:04,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895864117] [2024-11-24 01:14:04,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895864117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:04,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239599994] [2024-11-24 01:14:04,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:04,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:04,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:04,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:14:04,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:14:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:05,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:14:05,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:14:05,481 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:05,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239599994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:05,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:14:05,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:14:05,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679056883] [2024-11-24 01:14:05,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:05,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:14:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:05,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:14:05,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:14:05,523 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:14:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:05,557 INFO L93 Difference]: Finished difference Result 165 states and 258 transitions. [2024-11-24 01:14:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:14:05,559 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-11-24 01:14:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:05,566 INFO L225 Difference]: With dead ends: 165 [2024-11-24 01:14:05,566 INFO L226 Difference]: Without dead ends: 82 [2024-11-24 01:14:05,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:14:05,578 INFO L435 NwaCegarLoop]: 118 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, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:05,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:14:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-24 01:14:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-24 01:14:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:14:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2024-11-24 01:14:05,629 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 109 [2024-11-24 01:14:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:05,630 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2024-11-24 01:14:05,630 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:14:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2024-11-24 01:14:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:14:05,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:05,638 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:05,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:14:05,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:14:05,839 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:05,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:05,840 INFO L85 PathProgramCache]: Analyzing trace with hash 584676645, now seen corresponding path program 1 times [2024-11-24 01:14:05,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:05,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608055686] [2024-11-24 01:14:05,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:05,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:06,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608055686] [2024-11-24 01:14:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608055686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:06,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:06,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:14:06,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549436200] [2024-11-24 01:14:06,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:06,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:14:06,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:06,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:14:06,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:06,501 INFO L87 Difference]: Start difference. First operand 82 states and 118 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:06,583 INFO L93 Difference]: Finished difference Result 164 states and 237 transitions. [2024-11-24 01:14:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:06,585 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-24 01:14:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:06,587 INFO L225 Difference]: With dead ends: 164 [2024-11-24 01:14:06,587 INFO L226 Difference]: Without dead ends: 85 [2024-11-24 01:14:06,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:06,590 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:06,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:14:06,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-24 01:14:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-24 01:14:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:14:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-24 01:14:06,607 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 109 [2024-11-24 01:14:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:06,609 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-24 01:14:06,610 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-24 01:14:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:14:06,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:06,613 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:06,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:14:06,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:06,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:06,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1935283289, now seen corresponding path program 1 times [2024-11-24 01:14:06,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:06,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953087291] [2024-11-24 01:14:06,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:06,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:06,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:06,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953087291] [2024-11-24 01:14:06,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953087291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:06,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:06,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:14:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688701400] [2024-11-24 01:14:06,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:06,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:14:06,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:06,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:14:06,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:06,980 INFO L87 Difference]: Start difference. First operand 84 states and 120 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:07,031 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-24 01:14:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:07,031 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-24 01:14:07,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:07,034 INFO L225 Difference]: With dead ends: 168 [2024-11-24 01:14:07,034 INFO L226 Difference]: Without dead ends: 87 [2024-11-24 01:14:07,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:07,036 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:07,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:14:07,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-24 01:14:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-24 01:14:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:14:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-24 01:14:07,048 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 109 [2024-11-24 01:14:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:07,049 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-24 01:14:07,049 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-24 01:14:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:14:07,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:07,052 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:07,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:14:07,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:07,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:07,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1933436247, now seen corresponding path program 1 times [2024-11-24 01:14:07,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:07,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721248264] [2024-11-24 01:14:07,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721248264] [2024-11-24 01:14:07,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721248264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:07,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:07,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:14:07,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135445809] [2024-11-24 01:14:07,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:07,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:14:07,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:07,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:14:07,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:07,750 INFO L87 Difference]: Start difference. First operand 86 states and 122 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:07,998 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2024-11-24 01:14:07,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:07,999 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-24 01:14:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:08,002 INFO L225 Difference]: With dead ends: 252 [2024-11-24 01:14:08,003 INFO L226 Difference]: Without dead ends: 169 [2024-11-24 01:14:08,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:08,004 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 77 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:08,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 363 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:14:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-24 01:14:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 161. [2024-11-24 01:14:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 130 states have (on average 1.3307692307692307) internal successors, (173), 130 states have internal predecessors, (173), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 01:14:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 229 transitions. [2024-11-24 01:14:08,067 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 229 transitions. Word has length 109 [2024-11-24 01:14:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:08,068 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 229 transitions. [2024-11-24 01:14:08,069 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:08,069 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 229 transitions. [2024-11-24 01:14:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:14:08,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:08,075 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:08,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:14:08,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:08,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash 716307048, now seen corresponding path program 1 times [2024-11-24 01:14:08,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374321237] [2024-11-24 01:14:08,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:11,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:11,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374321237] [2024-11-24 01:14:11,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374321237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:11,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:11,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:14:11,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087760562] [2024-11-24 01:14:11,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:11,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:14:11,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:11,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:14:11,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:14:11,903 INFO L87 Difference]: Start difference. First operand 161 states and 229 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 15 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:14:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:13,659 INFO L93 Difference]: Finished difference Result 497 states and 707 transitions. [2024-11-24 01:14:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:14:13,660 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 15 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 110 [2024-11-24 01:14:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:13,662 INFO L225 Difference]: With dead ends: 497 [2024-11-24 01:14:13,663 INFO L226 Difference]: Without dead ends: 339 [2024-11-24 01:14:13,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:14:13,668 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 702 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:13,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 905 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:14:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-24 01:14:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 177. [2024-11-24 01:14:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 146 states have internal predecessors, (196), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 01:14:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2024-11-24 01:14:13,703 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 110 [2024-11-24 01:14:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:13,704 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2024-11-24 01:14:13,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 15 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:14:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2024-11-24 01:14:13,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:14:13,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:13,706 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:13,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:14:13,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:13,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash 129501034, now seen corresponding path program 1 times [2024-11-24 01:14:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355066730] [2024-11-24 01:14:13,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:14,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:14,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355066730] [2024-11-24 01:14:14,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355066730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:14,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:14,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:14:14,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572370882] [2024-11-24 01:14:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:14:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:14,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:14:14,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:14:14,885 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:16,147 INFO L93 Difference]: Finished difference Result 513 states and 717 transitions. [2024-11-24 01:14:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:14:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-11-24 01:14:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:16,154 INFO L225 Difference]: With dead ends: 513 [2024-11-24 01:14:16,154 INFO L226 Difference]: Without dead ends: 339 [2024-11-24 01:14:16,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:14:16,157 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 548 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:16,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 581 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:14:16,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-24 01:14:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 266. [2024-11-24 01:14:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 211 states have (on average 1.2890995260663507) internal successors, (272), 213 states have internal predecessors, (272), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:14:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 368 transitions. [2024-11-24 01:14:16,242 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 368 transitions. Word has length 110 [2024-11-24 01:14:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:16,244 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 368 transitions. [2024-11-24 01:14:16,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 368 transitions. [2024-11-24 01:14:16,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:14:16,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:16,247 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:16,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:14:16,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:16,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1132244947, now seen corresponding path program 1 times [2024-11-24 01:14:16,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:16,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856672527] [2024-11-24 01:14:16,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:16,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:16,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:16,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856672527] [2024-11-24 01:14:16,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856672527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:16,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:16,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:14:16,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102302835] [2024-11-24 01:14:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:16,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:16,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:16,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:16,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:16,642 INFO L87 Difference]: Start difference. First operand 266 states and 368 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:16,850 INFO L93 Difference]: Finished difference Result 591 states and 810 transitions. [2024-11-24 01:14:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:14:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-24 01:14:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:16,859 INFO L225 Difference]: With dead ends: 591 [2024-11-24 01:14:16,859 INFO L226 Difference]: Without dead ends: 341 [2024-11-24 01:14:16,860 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 [2024-11-24 01:14:16,861 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 69 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:16,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 483 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:16,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-24 01:14:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2024-11-24 01:14:16,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 278 states have internal predecessors, (354), 52 states have call successors, (52), 10 states have call predecessors, (52), 10 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:14:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 458 transitions. [2024-11-24 01:14:16,945 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 458 transitions. Word has length 111 [2024-11-24 01:14:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:16,946 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 458 transitions. [2024-11-24 01:14:16,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 458 transitions. [2024-11-24 01:14:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:14:16,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:16,948 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:16,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:14:16,950 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:16,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:16,951 INFO L85 PathProgramCache]: Analyzing trace with hash 111176593, now seen corresponding path program 1 times [2024-11-24 01:14:16,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:16,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572674642] [2024-11-24 01:14:16,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:16,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:17,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572674642] [2024-11-24 01:14:17,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572674642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:17,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:14:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982129169] [2024-11-24 01:14:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:17,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:14:17,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:17,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:14:17,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:17,301 INFO L87 Difference]: Start difference. First operand 338 states and 458 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:17,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:17,535 INFO L93 Difference]: Finished difference Result 586 states and 797 transitions. [2024-11-24 01:14:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:17,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-24 01:14:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:17,540 INFO L225 Difference]: With dead ends: 586 [2024-11-24 01:14:17,540 INFO L226 Difference]: Without dead ends: 268 [2024-11-24 01:14:17,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:14:17,544 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:17,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 361 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:14:17,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-24 01:14:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 260. [2024-11-24 01:14:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 214 states have (on average 1.2897196261682242) internal successors, (276), 216 states have internal predecessors, (276), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:14:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 352 transitions. [2024-11-24 01:14:17,605 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 352 transitions. Word has length 111 [2024-11-24 01:14:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:17,606 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 352 transitions. [2024-11-24 01:14:17,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 352 transitions. [2024-11-24 01:14:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:14:17,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:17,608 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:17,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:14:17,609 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:17,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1141588530, now seen corresponding path program 1 times [2024-11-24 01:14:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:17,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104227832] [2024-11-24 01:14:17,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:17,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104227832] [2024-11-24 01:14:17,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104227832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:17,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:17,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:14:17,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565678789] [2024-11-24 01:14:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:17,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:14:17,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:17,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:14:17,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:17,726 INFO L87 Difference]: Start difference. First operand 260 states and 352 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:17,787 INFO L93 Difference]: Finished difference Result 503 states and 685 transitions. [2024-11-24 01:14:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:14:17,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-24 01:14:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:17,790 INFO L225 Difference]: With dead ends: 503 [2024-11-24 01:14:17,790 INFO L226 Difference]: Without dead ends: 263 [2024-11-24 01:14:17,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:17,796 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:17,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:14:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-24 01:14:17,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2024-11-24 01:14:17,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 217 states have (on average 1.2857142857142858) internal successors, (279), 219 states have internal predecessors, (279), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:14:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 355 transitions. [2024-11-24 01:14:17,849 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 355 transitions. Word has length 113 [2024-11-24 01:14:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:17,851 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 355 transitions. [2024-11-24 01:14:17,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 355 transitions. [2024-11-24 01:14:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:14:17,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:17,856 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:17,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:14:17,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:17,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:17,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1728394544, now seen corresponding path program 1 times [2024-11-24 01:14:17,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:17,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557944883] [2024-11-24 01:14:17,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:17,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:14:18,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557944883] [2024-11-24 01:14:18,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557944883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747269899] [2024-11-24 01:14:18,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:18,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:18,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:18,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:14:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:14:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:18,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:14:18,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:18,553 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:18,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:18,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747269899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:18,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:14:18,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 01:14:18,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269474142] [2024-11-24 01:14:18,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:18,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:18,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:18,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:18,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:18,555 INFO L87 Difference]: Start difference. First operand 263 states and 355 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:18,645 INFO L93 Difference]: Finished difference Result 515 states and 697 transitions. [2024-11-24 01:14:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:14:18,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-24 01:14:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:18,648 INFO L225 Difference]: With dead ends: 515 [2024-11-24 01:14:18,648 INFO L226 Difference]: Without dead ends: 272 [2024-11-24 01:14:18,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:18,651 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:18,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:14:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-24 01:14:18,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-24 01:14:18,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 226 states have (on average 1.2743362831858407) internal successors, (288), 228 states have internal predecessors, (288), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:14:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 364 transitions. [2024-11-24 01:14:18,713 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 364 transitions. Word has length 113 [2024-11-24 01:14:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:18,713 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 364 transitions. [2024-11-24 01:14:18,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 364 transitions. [2024-11-24 01:14:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:14:18,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:18,715 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:18,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:14:18,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9609d7c2-4614-4edd-bf5d-d504568fb603/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:14:18,923 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:18,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1956569533, now seen corresponding path program 1 times [2024-11-24 01:14:18,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:18,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714176990] [2024-11-24 01:14:18,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:21,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:21,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714176990] [2024-11-24 01:14:21,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714176990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:21,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:14:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051964521] [2024-11-24 01:14:21,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:21,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:14:21,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:21,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:14:21,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:14:21,070 INFO L87 Difference]: Start difference. First operand 272 states and 364 transitions. Second operand has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 states have internal predecessors, (46), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-24 01:14:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:23,348 INFO L93 Difference]: Finished difference Result 558 states and 751 transitions. [2024-11-24 01:14:23,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:14:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 states have internal predecessors, (46), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) Word has length 113 [2024-11-24 01:14:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:23,353 INFO L225 Difference]: With dead ends: 558 [2024-11-24 01:14:23,353 INFO L226 Difference]: Without dead ends: 393 [2024-11-24 01:14:23,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:14:23,355 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 350 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:23,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 962 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:14:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-24 01:14:23,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 272. [2024-11-24 01:14:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 228 states have internal predecessors, (286), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:14:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 362 transitions. [2024-11-24 01:14:23,425 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 362 transitions. Word has length 113 [2024-11-24 01:14:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:23,428 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 362 transitions. [2024-11-24 01:14:23,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 states have internal predecessors, (46), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-24 01:14:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 362 transitions. [2024-11-24 01:14:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:14:23,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:23,430 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:23,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:14:23,431 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:23,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1369763519, now seen corresponding path program 1 times [2024-11-24 01:14:23,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:23,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300602236] [2024-11-24 01:14:23,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:23,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:24,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:24,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300602236] [2024-11-24 01:14:24,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300602236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:24,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:14:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617530797] [2024-11-24 01:14:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:24,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:24,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:24,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:24,015 INFO L87 Difference]: Start difference. First operand 272 states and 362 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:24,210 INFO L93 Difference]: Finished difference Result 509 states and 683 transitions. [2024-11-24 01:14:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:14:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-24 01:14:24,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:24,213 INFO L225 Difference]: With dead ends: 509 [2024-11-24 01:14:24,213 INFO L226 Difference]: Without dead ends: 344 [2024-11-24 01:14:24,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:14:24,215 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 48 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:24,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 556 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-24 01:14:24,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 268. [2024-11-24 01:14:24,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 222 states have (on average 1.2612612612612613) internal successors, (280), 224 states have internal predecessors, (280), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 01:14:24,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 356 transitions. [2024-11-24 01:14:24,267 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 356 transitions. Word has length 113 [2024-11-24 01:14:24,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:24,267 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 356 transitions. [2024-11-24 01:14:24,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 356 transitions. [2024-11-24 01:14:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 01:14:24,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:24,269 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:24,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:14:24,269 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:24,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1567346285, now seen corresponding path program 1 times [2024-11-24 01:14:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295762694] [2024-11-24 01:14:24,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:25,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:25,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295762694] [2024-11-24 01:14:25,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295762694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:25,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:25,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:14:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853952170] [2024-11-24 01:14:25,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:25,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:14:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:25,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:14:25,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:14:25,092 INFO L87 Difference]: Start difference. First operand 268 states and 356 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:25,852 INFO L93 Difference]: Finished difference Result 499 states and 664 transitions. [2024-11-24 01:14:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:14:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-24 01:14:25,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:25,856 INFO L225 Difference]: With dead ends: 499 [2024-11-24 01:14:25,857 INFO L226 Difference]: Without dead ends: 338 [2024-11-24 01:14:25,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:14:25,859 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 337 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:25,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 602 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:14:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-24 01:14:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 264. [2024-11-24 01:14:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 225 states have (on average 1.2844444444444445) internal successors, (289), 226 states have internal predecessors, (289), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:14:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 353 transitions. [2024-11-24 01:14:25,927 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 353 transitions. Word has length 115 [2024-11-24 01:14:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:25,928 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 353 transitions. [2024-11-24 01:14:25,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:25,929 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 353 transitions. [2024-11-24 01:14:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 01:14:25,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:25,932 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:25,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:14:25,932 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:25,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:25,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2043987111, now seen corresponding path program 1 times [2024-11-24 01:14:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:25,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15323034] [2024-11-24 01:14:25,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:25,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:26,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:26,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15323034] [2024-11-24 01:14:26,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15323034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:26,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:26,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:14:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290112183] [2024-11-24 01:14:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:26,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:14:26,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:26,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:14:26,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:14:26,897 INFO L87 Difference]: Start difference. First operand 264 states and 353 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:27,818 INFO L93 Difference]: Finished difference Result 587 states and 786 transitions. [2024-11-24 01:14:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:14:27,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-11-24 01:14:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:27,822 INFO L225 Difference]: With dead ends: 587 [2024-11-24 01:14:27,823 INFO L226 Difference]: Without dead ends: 413 [2024-11-24 01:14:27,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:14:27,824 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 698 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:27,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 680 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:14:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-24 01:14:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 276. [2024-11-24 01:14:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 237 states have (on average 1.2869198312236287) internal successors, (305), 238 states have internal predecessors, (305), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:14:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 369 transitions. [2024-11-24 01:14:27,873 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 369 transitions. Word has length 115 [2024-11-24 01:14:27,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:27,873 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 369 transitions. [2024-11-24 01:14:27,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 369 transitions. [2024-11-24 01:14:27,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 01:14:27,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:27,876 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:27,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:14:27,876 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:27,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:27,877 INFO L85 PathProgramCache]: Analyzing trace with hash 754447436, now seen corresponding path program 1 times [2024-11-24 01:14:27,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:27,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621357650] [2024-11-24 01:14:27,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:28,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:28,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621357650] [2024-11-24 01:14:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621357650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:28,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:14:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255237448] [2024-11-24 01:14:28,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:28,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:14:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:28,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:14:28,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:28,393 INFO L87 Difference]: Start difference. First operand 276 states and 369 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:28,712 INFO L93 Difference]: Finished difference Result 550 states and 735 transitions. [2024-11-24 01:14:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:14:28,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2024-11-24 01:14:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:28,715 INFO L225 Difference]: With dead ends: 550 [2024-11-24 01:14:28,715 INFO L226 Difference]: Without dead ends: 277 [2024-11-24 01:14:28,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:14:28,718 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 269 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:28,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 498 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:14:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-24 01:14:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 274. [2024-11-24 01:14:28,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 236 states have internal predecessors, (301), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:14:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 365 transitions. [2024-11-24 01:14:28,763 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 365 transitions. Word has length 116 [2024-11-24 01:14:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:28,765 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 365 transitions. [2024-11-24 01:14:28,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:14:28,765 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 365 transitions. [2024-11-24 01:14:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 01:14:28,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:28,767 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:28,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:14:28,767 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:28,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash -525416242, now seen corresponding path program 1 times [2024-11-24 01:14:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:28,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665945674] [2024-11-24 01:14:28,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:28,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:29,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:29,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665945674] [2024-11-24 01:14:29,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665945674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:29,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:29,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:14:29,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79189520] [2024-11-24 01:14:29,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:29,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:14:29,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:29,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:14:29,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:14:29,210 INFO L87 Difference]: Start difference. First operand 274 states and 365 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:29,522 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2024-11-24 01:14:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:14:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2024-11-24 01:14:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:29,525 INFO L225 Difference]: With dead ends: 524 [2024-11-24 01:14:29,525 INFO L226 Difference]: Without dead ends: 253 [2024-11-24 01:14:29,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:14:29,526 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 333 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:29,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 381 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:14:29,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-24 01:14:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2024-11-24 01:14:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 211 states have (on average 1.2559241706161137) internal successors, (265), 212 states have internal predecessors, (265), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:14:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 329 transitions. [2024-11-24 01:14:29,590 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 329 transitions. Word has length 116 [2024-11-24 01:14:29,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:29,590 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 329 transitions. [2024-11-24 01:14:29,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:14:29,591 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 329 transitions. [2024-11-24 01:14:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 01:14:29,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:29,593 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:29,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:14:29,593 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:29,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:29,594 INFO L85 PathProgramCache]: Analyzing trace with hash 70813536, now seen corresponding path program 1 times [2024-11-24 01:14:29,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:29,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709433169] [2024-11-24 01:14:29,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:29,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:29,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:29,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709433169] [2024-11-24 01:14:29,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709433169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:29,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:29,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:14:29,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402180003] [2024-11-24 01:14:29,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:29,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:29,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:29,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:29,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:29,894 INFO L87 Difference]: Start difference. First operand 250 states and 329 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:30,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:30,033 INFO L93 Difference]: Finished difference Result 504 states and 664 transitions. [2024-11-24 01:14:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:14:30,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-24 01:14:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:30,037 INFO L225 Difference]: With dead ends: 504 [2024-11-24 01:14:30,038 INFO L226 Difference]: Without dead ends: 257 [2024-11-24 01:14:30,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:14:30,039 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 93 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:30,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 440 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:30,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-24 01:14:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2024-11-24 01:14:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 211 states have (on average 1.2511848341232228) internal successors, (264), 212 states have internal predecessors, (264), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 01:14:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 328 transitions. [2024-11-24 01:14:30,091 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 328 transitions. Word has length 116 [2024-11-24 01:14:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:30,091 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 328 transitions. [2024-11-24 01:14:30,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 328 transitions. [2024-11-24 01:14:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:14:30,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:30,093 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:30,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:14:30,093 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:30,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:30,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2102425942, now seen corresponding path program 1 times [2024-11-24 01:14:30,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:30,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359128978] [2024-11-24 01:14:30,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:30,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:59,822 WARN L286 SmtUtils]: Spent 20.46s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:23:16,448 WARN L286 SmtUtils]: Spent 16.62s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:23:34,060 WARN L286 SmtUtils]: Spent 17.52s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:24:03,038 WARN L286 SmtUtils]: Spent 20.36s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:24:26,696 WARN L286 SmtUtils]: Spent 19.33s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:24:49,916 WARN L286 SmtUtils]: Spent 20.48s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:25:18,844 WARN L286 SmtUtils]: Spent 20.30s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:25:41,401 WARN L286 SmtUtils]: Spent 15.55s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:26:16,842 WARN L286 SmtUtils]: Spent 20.30s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:26:41,484 WARN L286 SmtUtils]: Spent 20.32s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:27:10,423 WARN L286 SmtUtils]: Spent 20.27s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:27:31,786 WARN L286 SmtUtils]: Spent 21.30s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:27:54,519 WARN L286 SmtUtils]: Spent 16.48s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:28:20,513 WARN L286 SmtUtils]: Spent 16.38s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:28:40,949 WARN L286 SmtUtils]: Spent 20.37s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)