./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:31:58,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:31:59,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:31:59,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:31:59,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:31:59,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:31:59,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:31:59,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:31:59,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:31:59,116 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:31:59,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:31:59,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:31:59,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:31:59,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:31:59,118 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:31:59,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:31:59,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:31:59,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:31:59,120 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:31:59,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:31:59,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:31:59,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:31:59,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:31:59,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:31:59,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:31:59,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:31:59,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:31:59,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:31:59,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:31:59,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:31:59,124 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:31:59,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:31:59,124 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d [2024-11-28 04:31:59,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:31:59,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:31:59,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:31:59,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:31:59,446 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:31:59,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:02,359 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/98fc810bd/92fa20788353482a8ca607bb05ef1314/FLAG6eb2b277c [2024-11-28 04:32:02,687 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:32:02,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:02,710 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/98fc810bd/92fa20788353482a8ca607bb05ef1314/FLAG6eb2b277c [2024-11-28 04:32:02,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/98fc810bd/92fa20788353482a8ca607bb05ef1314 [2024-11-28 04:32:02,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:32:02,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:32:02,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:02,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:32:02,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:32:02,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:02" (1/1) ... [2024-11-28 04:32:02,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2511d8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:02, skipping insertion in model container [2024-11-28 04:32:02,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:02" (1/1) ... [2024-11-28 04:32:02,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:32:02,956 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-28 04:32:03,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:03,081 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:32:03,096 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-28 04:32:03,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:03,207 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:32:03,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03 WrapperNode [2024-11-28 04:32:03,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:03,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:03,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:32:03,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:32:03,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,275 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 417 [2024-11-28 04:32:03,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:03,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:32:03,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:32:03,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:32:03,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,308 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 24, 3, 72, 9]. 65 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 3, 1, 8, 1]. The 17 writes are split as follows [0, 3, 1, 10, 3]. [2024-11-28 04:32:03,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:32:03,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:32:03,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:32:03,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:32:03,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (1/1) ... [2024-11-28 04:32:03,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:32:03,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:03,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:32:03,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:32:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:32:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:32:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:32:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:32:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:32:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-28 04:32:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-28 04:32:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-28 04:32:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:32:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:32:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-28 04:32:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-28 04:32:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-28 04:32:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-28 04:32:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-28 04:32:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:32:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:32:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:32:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:32:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:32:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:32:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:32:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:32:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:32:03,592 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:32:03,594 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:32:04,110 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-28 04:32:04,110 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:32:04,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:32:04,121 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:32:04,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:04 BoogieIcfgContainer [2024-11-28 04:32:04,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:32:04,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:32:04,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:32:04,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:32:04,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:32:02" (1/3) ... [2024-11-28 04:32:04,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b35b950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:04, skipping insertion in model container [2024-11-28 04:32:04,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:03" (2/3) ... [2024-11-28 04:32:04,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b35b950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:04, skipping insertion in model container [2024-11-28 04:32:04,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:04" (3/3) ... [2024-11-28 04:32:04,132 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:04,147 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:32:04,149 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-57.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:32:04,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:32:04,239 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;@f6f95b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:32:04,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:32:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:04,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:32:04,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:04,259 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:04,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:04,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1840313941, now seen corresponding path program 1 times [2024-11-28 04:32:04,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:04,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892177362] [2024-11-28 04:32:04,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:04,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:32:04,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892177362] [2024-11-28 04:32:04,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892177362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:04,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092706652] [2024-11-28 04:32:04,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:04,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:04,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:04,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:04,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:32:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:05,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:32:05,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 04:32:05,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:05,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092706652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:05,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:05,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:32:05,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768395594] [2024-11-28 04:32:05,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:05,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:32:05,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:05,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:32:05,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:05,116 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:05,142 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-11-28 04:32:05,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:32:05,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-11-28 04:32:05,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:05,150 INFO L225 Difference]: With dead ends: 187 [2024-11-28 04:32:05,150 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 04:32:05,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:05,156 INFO L435 NwaCegarLoop]: 135 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, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:05,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:05,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 04:32:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-28 04:32:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:05,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-28 04:32:05,213 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-11-28 04:32:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:05,214 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-28 04:32:05,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-28 04:32:05,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:32:05,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:05,224 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:05,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:32:05,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:32:05,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:05,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash -957014791, now seen corresponding path program 1 times [2024-11-28 04:32:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:05,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530518512] [2024-11-28 04:32:05,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:05,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530518512] [2024-11-28 04:32:05,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530518512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:05,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:05,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:32:05,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123814006] [2024-11-28 04:32:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:05,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:32:05,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:06,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:32:06,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:32:06,001 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:06,073 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-28 04:32:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:32:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-11-28 04:32:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:06,077 INFO L225 Difference]: With dead ends: 186 [2024-11-28 04:32:06,077 INFO L226 Difference]: Without dead ends: 96 [2024-11-28 04:32:06,078 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 [2024-11-28 04:32:06,079 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:06,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 387 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-28 04:32:06,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-28 04:32:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-11-28 04:32:06,105 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 134 [2024-11-28 04:32:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-11-28 04:32:06,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2024-11-28 04:32:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:32:06,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:06,110 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:06,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:32:06,111 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:06,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash -955167749, now seen corresponding path program 1 times [2024-11-28 04:32:06,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:06,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991047653] [2024-11-28 04:32:06,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:06,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:06,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:06,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991047653] [2024-11-28 04:32:06,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991047653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:06,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:06,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:06,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868305929] [2024-11-28 04:32:06,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:06,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:06,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:06,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:06,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:06,876 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:07,037 INFO L93 Difference]: Finished difference Result 236 states and 343 transitions. [2024-11-28 04:32:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:07,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-11-28 04:32:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:07,043 INFO L225 Difference]: With dead ends: 236 [2024-11-28 04:32:07,043 INFO L226 Difference]: Without dead ends: 144 [2024-11-28 04:32:07,045 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 [2024-11-28 04:32:07,046 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 60 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:07,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 554 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-28 04:32:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 111. [2024-11-28 04:32:07,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 91 states have internal predecessors, (125), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-28 04:32:07,066 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 134 [2024-11-28 04:32:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:07,066 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-28 04:32:07,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-28 04:32:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:32:07,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:07,073 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:07,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:32:07,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:07,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1223337891, now seen corresponding path program 1 times [2024-11-28 04:32:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90845887] [2024-11-28 04:32:07,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:07,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:07,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90845887] [2024-11-28 04:32:07,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90845887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:07,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:07,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:32:07,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715687678] [2024-11-28 04:32:07,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:07,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:32:07,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:07,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:32:07,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:32:07,237 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:07,271 INFO L93 Difference]: Finished difference Result 259 states and 377 transitions. [2024-11-28 04:32:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:32:07,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2024-11-28 04:32:07,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:07,273 INFO L225 Difference]: With dead ends: 259 [2024-11-28 04:32:07,273 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:32:07,274 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 [2024-11-28 04:32:07,275 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 60 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:07,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 300 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:32:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 111. [2024-11-28 04:32:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 91 states have internal predecessors, (124), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2024-11-28 04:32:07,285 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 136 [2024-11-28 04:32:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:07,286 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2024-11-28 04:32:07,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2024-11-28 04:32:07,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:32:07,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:07,288 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:07,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:32:07,289 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:07,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1896205134, now seen corresponding path program 1 times [2024-11-28 04:32:07,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:07,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079234950] [2024-11-28 04:32:07,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:07,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079234950] [2024-11-28 04:32:07,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079234950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:07,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:07,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:07,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766413784] [2024-11-28 04:32:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:07,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:07,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:07,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:07,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:07,802 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:08,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:08,230 INFO L93 Difference]: Finished difference Result 312 states and 451 transitions. [2024-11-28 04:32:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:32:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2024-11-28 04:32:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:08,234 INFO L225 Difference]: With dead ends: 312 [2024-11-28 04:32:08,234 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 04:32:08,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:08,237 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 130 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:08,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 358 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:32:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 04:32:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 155. [2024-11-28 04:32:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 116 states have internal predecessors, (149), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:32:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 221 transitions. [2024-11-28 04:32:08,275 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 221 transitions. Word has length 137 [2024-11-28 04:32:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:08,276 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 221 transitions. [2024-11-28 04:32:08,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 221 transitions. [2024-11-28 04:32:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:32:08,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:08,278 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:08,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:32:08,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:08,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1705869233, now seen corresponding path program 1 times [2024-11-28 04:32:08,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:08,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130688320] [2024-11-28 04:32:08,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:08,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:08,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:08,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130688320] [2024-11-28 04:32:08,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130688320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:08,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012979081] [2024-11-28 04:32:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:08,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:08,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:08,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:08,839 INFO L87 Difference]: Start difference. First operand 155 states and 221 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:09,027 INFO L93 Difference]: Finished difference Result 313 states and 450 transitions. [2024-11-28 04:32:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-28 04:32:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:09,030 INFO L225 Difference]: With dead ends: 313 [2024-11-28 04:32:09,030 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:32:09,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:32:09,035 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 56 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:09,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 622 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:09,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:32:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 174. [2024-11-28 04:32:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 135 states have (on average 1.3185185185185184) internal successors, (178), 135 states have internal predecessors, (178), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:32:09,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 250 transitions. [2024-11-28 04:32:09,075 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 250 transitions. Word has length 141 [2024-11-28 04:32:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:09,076 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 250 transitions. [2024-11-28 04:32:09,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 250 transitions. [2024-11-28 04:32:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:32:09,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:09,078 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:09,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:32:09,079 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:09,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1447703795, now seen corresponding path program 1 times [2024-11-28 04:32:09,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:09,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165225145] [2024-11-28 04:32:09,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:09,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165225145] [2024-11-28 04:32:09,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165225145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:09,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:09,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:32:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612474858] [2024-11-28 04:32:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:09,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:32:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:09,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:32:09,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:09,595 INFO L87 Difference]: Start difference. First operand 174 states and 250 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:09,780 INFO L93 Difference]: Finished difference Result 329 states and 474 transitions. [2024-11-28 04:32:09,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:32:09,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-28 04:32:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:09,783 INFO L225 Difference]: With dead ends: 329 [2024-11-28 04:32:09,783 INFO L226 Difference]: Without dead ends: 202 [2024-11-28 04:32:09,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:32:09,785 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 169 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:09,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 658 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-28 04:32:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 153. [2024-11-28 04:32:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 114 states have (on average 1.280701754385965) internal successors, (146), 114 states have internal predecessors, (146), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:32:09,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 218 transitions. [2024-11-28 04:32:09,806 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 218 transitions. Word has length 141 [2024-11-28 04:32:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:09,807 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 218 transitions. [2024-11-28 04:32:09,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 218 transitions. [2024-11-28 04:32:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:09,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:09,809 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:09,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:32:09,809 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:09,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1643005562, now seen corresponding path program 1 times [2024-11-28 04:32:09,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:09,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246152167] [2024-11-28 04:32:09,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:10,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:10,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246152167] [2024-11-28 04:32:10,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246152167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:10,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:10,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:10,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562974455] [2024-11-28 04:32:10,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:10,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:10,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:10,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:10,698 INFO L87 Difference]: Start difference. First operand 153 states and 218 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:10,901 INFO L93 Difference]: Finished difference Result 321 states and 459 transitions. [2024-11-28 04:32:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-28 04:32:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:10,904 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:32:10,908 INFO L226 Difference]: Without dead ends: 215 [2024-11-28 04:32:10,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:10,910 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 142 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:10,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 490 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-28 04:32:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2024-11-28 04:32:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 168 states have (on average 1.3214285714285714) internal successors, (222), 169 states have internal predecessors, (222), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:32:10,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 302 transitions. [2024-11-28 04:32:10,952 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 302 transitions. Word has length 144 [2024-11-28 04:32:10,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:10,953 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 302 transitions. [2024-11-28 04:32:10,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:10,953 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 302 transitions. [2024-11-28 04:32:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:10,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:10,956 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:10,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:32:10,957 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:10,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1861860280, now seen corresponding path program 1 times [2024-11-28 04:32:10,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:10,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233284374] [2024-11-28 04:32:10,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:10,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:11,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:11,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233284374] [2024-11-28 04:32:11,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233284374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:11,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:11,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:11,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897135102] [2024-11-28 04:32:11,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:11,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:11,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:11,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:11,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:11,686 INFO L87 Difference]: Start difference. First operand 212 states and 302 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:11,906 INFO L93 Difference]: Finished difference Result 381 states and 544 transitions. [2024-11-28 04:32:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:11,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-28 04:32:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:11,910 INFO L225 Difference]: With dead ends: 381 [2024-11-28 04:32:11,911 INFO L226 Difference]: Without dead ends: 216 [2024-11-28 04:32:11,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:11,913 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 64 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:11,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 601 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-28 04:32:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 213. [2024-11-28 04:32:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 169 states have (on average 1.319526627218935) internal successors, (223), 170 states have internal predecessors, (223), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:32:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 303 transitions. [2024-11-28 04:32:11,949 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 303 transitions. Word has length 144 [2024-11-28 04:32:11,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:11,949 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 303 transitions. [2024-11-28 04:32:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 303 transitions. [2024-11-28 04:32:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:11,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:11,952 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:11,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:32:11,952 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:11,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1732042438, now seen corresponding path program 1 times [2024-11-28 04:32:11,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425566437] [2024-11-28 04:32:11,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:14,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:14,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425566437] [2024-11-28 04:32:14,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425566437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:14,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:14,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:32:14,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481690896] [2024-11-28 04:32:14,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:14,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:32:14,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:14,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:32:14,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:14,624 INFO L87 Difference]: Start difference. First operand 213 states and 303 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:15,112 INFO L93 Difference]: Finished difference Result 485 states and 686 transitions. [2024-11-28 04:32:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-28 04:32:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:15,118 INFO L225 Difference]: With dead ends: 485 [2024-11-28 04:32:15,119 INFO L226 Difference]: Without dead ends: 319 [2024-11-28 04:32:15,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:15,121 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 61 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:15,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 776 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:32:15,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-28 04:32:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 316. [2024-11-28 04:32:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 260 states have (on average 1.3192307692307692) internal successors, (343), 263 states have internal predecessors, (343), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2024-11-28 04:32:15,173 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 144 [2024-11-28 04:32:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:15,173 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2024-11-28 04:32:15,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2024-11-28 04:32:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:15,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:15,176 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:15,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:32:15,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:15,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1952317151, now seen corresponding path program 1 times [2024-11-28 04:32:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:15,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088761722] [2024-11-28 04:32:15,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:15,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:15,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088761722] [2024-11-28 04:32:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088761722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:15,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683577212] [2024-11-28 04:32:15,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:15,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:15,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:15,454 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:15,617 INFO L93 Difference]: Finished difference Result 756 states and 1062 transitions. [2024-11-28 04:32:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:15,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:15,622 INFO L225 Difference]: With dead ends: 756 [2024-11-28 04:32:15,622 INFO L226 Difference]: Without dead ends: 487 [2024-11-28 04:32:15,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:15,626 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 81 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:15,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 530 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:15,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-28 04:32:15,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 337. [2024-11-28 04:32:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 281 states have (on average 1.3309608540925266) internal successors, (374), 284 states have internal predecessors, (374), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:15,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 474 transitions. [2024-11-28 04:32:15,688 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 474 transitions. Word has length 145 [2024-11-28 04:32:15,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:15,691 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 474 transitions. [2024-11-28 04:32:15,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:15,691 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 474 transitions. [2024-11-28 04:32:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:15,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:15,694 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:15,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:32:15,694 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:15,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:15,697 INFO L85 PathProgramCache]: Analyzing trace with hash -566113757, now seen corresponding path program 1 times [2024-11-28 04:32:15,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:15,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178044233] [2024-11-28 04:32:15,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:15,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:16,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:16,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178044233] [2024-11-28 04:32:16,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178044233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:16,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:16,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258216426] [2024-11-28 04:32:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:16,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:16,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:16,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:16,057 INFO L87 Difference]: Start difference. First operand 337 states and 474 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:16,236 INFO L93 Difference]: Finished difference Result 708 states and 997 transitions. [2024-11-28 04:32:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:16,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:16,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:16,240 INFO L225 Difference]: With dead ends: 708 [2024-11-28 04:32:16,241 INFO L226 Difference]: Without dead ends: 418 [2024-11-28 04:32:16,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:16,243 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 73 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:16,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 670 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-28 04:32:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 353. [2024-11-28 04:32:16,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 297 states have (on average 1.32996632996633) internal successors, (395), 300 states have internal predecessors, (395), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 495 transitions. [2024-11-28 04:32:16,303 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 495 transitions. Word has length 145 [2024-11-28 04:32:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:16,303 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 495 transitions. [2024-11-28 04:32:16,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:16,304 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 495 transitions. [2024-11-28 04:32:16,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:16,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:16,306 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:16,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:32:16,307 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:16,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1845977435, now seen corresponding path program 1 times [2024-11-28 04:32:16,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:16,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234369361] [2024-11-28 04:32:16,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:16,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:16,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:16,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234369361] [2024-11-28 04:32:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234369361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569694076] [2024-11-28 04:32:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:16,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:16,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:16,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:16,651 INFO L87 Difference]: Start difference. First operand 353 states and 495 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:16,808 INFO L93 Difference]: Finished difference Result 719 states and 1001 transitions. [2024-11-28 04:32:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:16,813 INFO L225 Difference]: With dead ends: 719 [2024-11-28 04:32:16,813 INFO L226 Difference]: Without dead ends: 413 [2024-11-28 04:32:16,814 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 [2024-11-28 04:32:16,814 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 99 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:16,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 433 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-28 04:32:16,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 410. [2024-11-28 04:32:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 349 states have (on average 1.320916905444126) internal successors, (461), 353 states have internal predecessors, (461), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:16,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 565 transitions. [2024-11-28 04:32:16,868 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 565 transitions. Word has length 145 [2024-11-28 04:32:16,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:16,868 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 565 transitions. [2024-11-28 04:32:16,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 565 transitions. [2024-11-28 04:32:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:16,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:16,871 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:16,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:32:16,871 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:16,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1244546081, now seen corresponding path program 1 times [2024-11-28 04:32:16,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:16,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507542398] [2024-11-28 04:32:16,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:16,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:17,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:17,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507542398] [2024-11-28 04:32:17,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507542398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:17,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:17,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:17,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488259742] [2024-11-28 04:32:17,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:17,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:17,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:17,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:17,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:17,306 INFO L87 Difference]: Start difference. First operand 410 states and 565 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:17,568 INFO L93 Difference]: Finished difference Result 848 states and 1165 transitions. [2024-11-28 04:32:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:32:17,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:17,572 INFO L225 Difference]: With dead ends: 848 [2024-11-28 04:32:17,572 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 04:32:17,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:32:17,573 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 62 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:17,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 719 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:17,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 04:32:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 417. [2024-11-28 04:32:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 356 states have (on average 1.3230337078651686) internal successors, (471), 360 states have internal predecessors, (471), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 575 transitions. [2024-11-28 04:32:17,622 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 575 transitions. Word has length 145 [2024-11-28 04:32:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:17,622 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 575 transitions. [2024-11-28 04:32:17,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 575 transitions. [2024-11-28 04:32:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:17,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:17,625 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:17,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:32:17,625 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:17,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:17,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1770557537, now seen corresponding path program 1 times [2024-11-28 04:32:17,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:17,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964468294] [2024-11-28 04:32:17,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:18,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964468294] [2024-11-28 04:32:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964468294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096663945] [2024-11-28 04:32:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:18,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:18,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:18,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:18,096 INFO L87 Difference]: Start difference. First operand 417 states and 575 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:18,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:18,317 INFO L93 Difference]: Finished difference Result 876 states and 1202 transitions. [2024-11-28 04:32:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:18,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-28 04:32:18,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:18,321 INFO L225 Difference]: With dead ends: 876 [2024-11-28 04:32:18,321 INFO L226 Difference]: Without dead ends: 506 [2024-11-28 04:32:18,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:18,323 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 133 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:18,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 599 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-28 04:32:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 455. [2024-11-28 04:32:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 390 states have (on average 1.3051282051282052) internal successors, (509), 395 states have internal predecessors, (509), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:32:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 617 transitions. [2024-11-28 04:32:18,377 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 617 transitions. Word has length 145 [2024-11-28 04:32:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:18,378 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 617 transitions. [2024-11-28 04:32:18,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 617 transitions. [2024-11-28 04:32:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:18,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:18,380 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:18,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:32:18,381 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:18,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 205210215, now seen corresponding path program 1 times [2024-11-28 04:32:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:18,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484746194] [2024-11-28 04:32:18,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:18,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:18,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484746194] [2024-11-28 04:32:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484746194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:18,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:18,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:32:18,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009480616] [2024-11-28 04:32:18,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:18,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:32:18,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:18,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:32:18,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:32:18,463 INFO L87 Difference]: Start difference. First operand 455 states and 617 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:18,520 INFO L93 Difference]: Finished difference Result 865 states and 1179 transitions. [2024-11-28 04:32:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:32:18,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:18,523 INFO L225 Difference]: With dead ends: 865 [2024-11-28 04:32:18,524 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 04:32:18,525 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 [2024-11-28 04:32:18,525 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 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 [2024-11-28 04:32:18,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 04:32:18,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-11-28 04:32:18,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 396 states have (on average 1.3005050505050506) internal successors, (515), 401 states have internal predecessors, (515), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:32:18,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 623 transitions. [2024-11-28 04:32:18,580 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 623 transitions. Word has length 147 [2024-11-28 04:32:18,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:18,580 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 623 transitions. [2024-11-28 04:32:18,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:18,581 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 623 transitions. [2024-11-28 04:32:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:18,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:18,583 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:18,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:32:18,583 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:18,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash 463375653, now seen corresponding path program 1 times [2024-11-28 04:32:18,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:18,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265229319] [2024-11-28 04:32:18,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 04:32:18,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:18,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265229319] [2024-11-28 04:32:18,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265229319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:18,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319439198] [2024-11-28 04:32:18,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:18,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:18,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:32:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:19,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:32:19,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:19,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319439198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:19,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-28 04:32:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79189520] [2024-11-28 04:32:19,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:19,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:19,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:19,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:19,222 INFO L87 Difference]: Start difference. First operand 461 states and 623 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:19,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:19,313 INFO L93 Difference]: Finished difference Result 895 states and 1209 transitions. [2024-11-28 04:32:19,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:19,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:19,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:19,317 INFO L225 Difference]: With dead ends: 895 [2024-11-28 04:32:19,317 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 04:32:19,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:19,319 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:19,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 640 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:19,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 04:32:19,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 473. [2024-11-28 04:32:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 408 states have (on average 1.2916666666666667) internal successors, (527), 413 states have internal predecessors, (527), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:32:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 635 transitions. [2024-11-28 04:32:19,373 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 635 transitions. Word has length 147 [2024-11-28 04:32:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:19,374 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 635 transitions. [2024-11-28 04:32:19,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 635 transitions. [2024-11-28 04:32:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:19,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:19,376 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:19,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:19,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:32:19,577 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:19,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2144036769, now seen corresponding path program 1 times [2024-11-28 04:32:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052385011] [2024-11-28 04:32:19,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:32:19,716 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:32:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:32:19,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:32:19,907 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:32:19,908 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:32:19,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:32:19,913 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:20,013 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:32:20,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:32:20 BoogieIcfgContainer [2024-11-28 04:32:20,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:32:20,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:32:20,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:32:20,017 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:32:20,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:04" (3/4) ... [2024-11-28 04:32:20,022 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:32:20,023 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:32:20,024 INFO L158 Benchmark]: Toolchain (without parser) took 17287.03ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 118.6MB in the beginning and 264.5MB in the end (delta: -145.9MB). Peak memory consumption was 213.4MB. Max. memory is 16.1GB. [2024-11-28 04:32:20,025 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:32:20,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.12ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 102.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:32:20,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.49ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 99.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:32:20,026 INFO L158 Benchmark]: Boogie Preprocessor took 78.70ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 96.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:32:20,026 INFO L158 Benchmark]: RCFGBuilder took 766.24ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 66.6MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:32:20,027 INFO L158 Benchmark]: TraceAbstraction took 15891.94ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 66.2MB in the beginning and 264.5MB in the end (delta: -198.4MB). Peak memory consumption was 163.0MB. Max. memory is 16.1GB. [2024-11-28 04:32:20,027 INFO L158 Benchmark]: Witness Printer took 6.74ms. Allocated memory is still 503.3MB. Free memory was 264.5MB in the beginning and 264.5MB in the end (delta: 68.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:32:20,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.12ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 102.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.49ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 99.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.70ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 96.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 766.24ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 66.6MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15891.94ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 66.2MB in the beginning and 264.5MB in the end (delta: -198.4MB). Peak memory consumption was 163.0MB. Max. memory is 16.1GB. * Witness Printer took 6.74ms. Allocated memory is still 503.3MB. Free memory was 264.5MB in the beginning and 264.5MB in the end (delta: 68.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[3] = { 1, 0, 0 }; [L25-L27] float float_Array_0[1] = { 63.5 }; [L25-L27] float float_Array_0[1] = { 63.5 }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L28-L30] signed char signed_char_Array_0[2][2][2] = { {{32, -4}, {32, -64}}, {{64, 16}, {4, 50}} }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 1 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 1 }; [L34] signed char last_1_signed_char_Array_0_1__0__0_ = 64; [L35] signed char last_1_signed_char_Array_0_0__1__1_ = -64; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L104] isInitial = 1 [L105] FCALL initially() [L107] CALL updateLastVariables() [L96] EXPR signed_char_Array_0[1][0][0] [L96] last_1_signed_char_Array_0_1__0__0_ = signed_char_Array_0[1][0][0] [L97] EXPR signed_char_Array_0[0][1][1] [L97] last_1_signed_char_Array_0_0__1__1_ = signed_char_Array_0[0][1][1] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L67] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L68] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L68] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L68] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L70] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L73] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L76] signed_char_Array_0[0][0][0] = __VERIFIER_nondet_char() [L77] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_char_Array_0[0][0][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_char_Array_0[0][0][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(signed_char_Array_0[0][0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] RET assume_abort_if_not(signed_char_Array_0[0][0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L79] signed_char_Array_0[0][1][0] = __VERIFIER_nondet_char() [L80] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[0][1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L80] RET assume_abort_if_not(signed_char_Array_0[0][1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] CALL assume_abort_if_not(signed_char_Array_0[0][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L81] RET assume_abort_if_not(signed_char_Array_0[0][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L82] signed_char_Array_0[1][1][0] = __VERIFIER_nondet_char() [L83] EXPR signed_char_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[1][1][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[1][1][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] EXPR signed_char_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[1][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L84] RET assume_abort_if_not(signed_char_Array_0[1][1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L85] signed_char_Array_0[0][0][1] = __VERIFIER_nondet_char() [L86] EXPR signed_char_Array_0[0][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[0][0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[0][0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] EXPR signed_char_Array_0[0][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0][0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[0][0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L88] signed_char_Array_0[1][0][1] = __VERIFIER_nondet_char() [L89] EXPR signed_char_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] EXPR signed_char_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(signed_char_Array_0[1][0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L90] RET assume_abort_if_not(signed_char_Array_0[1][0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L91] signed_char_Array_0[1][1][1] = __VERIFIER_nondet_char() [L92] EXPR signed_char_Array_0[1][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L92] CALL assume_abort_if_not(signed_char_Array_0[1][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L92] RET assume_abort_if_not(signed_char_Array_0[1][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] EXPR signed_char_Array_0[1][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(signed_char_Array_0[1][1][1] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L93] RET assume_abort_if_not(signed_char_Array_0[1][1][1] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L108] RET updateVariables() [L109] CALL step() [L39] EXPR BOOL_unsigned_char_Array_0[0] [L39] unsigned char stepLocal_0 = BOOL_unsigned_char_Array_0[0]; [L40] COND TRUE ! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_) [L41] EXPR BOOL_unsigned_char_Array_0[2] [L41] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_0=-511] [L41] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L41] COND TRUE (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && stepLocal_0 [L42] signed_long_int_Array_0[0] = ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] EXPR signed_char_Array_0[1][1][1] [L49] EXPR signed_char_Array_0[1][0][1] [L49] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) [L49] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L49] signed long int stepLocal_3 = (signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))); [L50] EXPR signed_char_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L50] COND TRUE signed_char_Array_0[0][0][0] < stepLocal_3 [L51] EXPR signed_char_Array_0[1][0][1] [L51] EXPR signed_char_Array_0[0][1][0] [L51] signed_char_Array_0[0][1][1] = ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]) [L55] float_Array_0[0] = 128.91f [L56] EXPR signed_char_Array_0[0][1][1] [L56] EXPR signed_long_int_Array_0[0] [L56] unsigned char stepLocal_2 = signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0]; [L57] EXPR BOOL_unsigned_char_Array_0[1] [L57] unsigned char stepLocal_1 = BOOL_unsigned_char_Array_0[1]; [L58] stepLocal_1 && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_2=0] [L58] stepLocal_1 && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L58] COND FALSE !(stepLocal_1 && BOOL_unsigned_char_Array_0[2]) [L63] EXPR signed_char_Array_0[0][0][0] [L63] EXPR signed_char_Array_0[0][1][0] [L63] signed_char_Array_0[1][0][0] = (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR (! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) [L100] EXPR BOOL_unsigned_char_Array_0[2] [L100] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] [L100] EXPR BOOL_unsigned_char_Array_0[0] [L100] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) [L100] EXPR signed_long_int_Array_0[0] [L100] EXPR ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) [L100] EXPR BOOL_unsigned_char_Array_0[1] [L100] EXPR BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))) [L100] EXPR signed_char_Array_0[1][0][0] [L100] EXPR signed_char_Array_0[0][0][0] [L100] EXPR signed_char_Array_0[0][1][0] [L100] EXPR (BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) [L100] EXPR signed_char_Array_0[0][0][0] [L100] EXPR signed_char_Array_0[1][1][1] [L100] EXPR signed_char_Array_0[1][0][1] [L100] EXPR signed_char_Array_0[0][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) [L100] EXPR ((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) [L100] EXPR signed_char_Array_0[0][1][1] [L100] EXPR signed_char_Array_0[1][0][1] [L100] EXPR signed_char_Array_0[0][1][0] [L100] EXPR (signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR (((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) [L100] EXPR float_Array_0[0] [L100] EXPR ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L100-L101] return ((((! (last_1_signed_char_Array_0_0__1__1_ >= last_1_signed_char_Array_0_1__0__0_)) ? (((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[1]) && BOOL_unsigned_char_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((last_1_signed_char_Array_0_1__0__0_) < (last_1_signed_char_Array_0_0__1__1_)) ? (last_1_signed_char_Array_0_1__0__0_) : (last_1_signed_char_Array_0_0__1__1_))))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) : (signed_long_int_Array_0[0] == ((signed long int) last_1_signed_char_Array_0_0__1__1_))) && ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] || (signed_char_Array_0[0][1][1] == signed_long_int_Array_0[0])) ? (signed_char_Array_0[1][0][0] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))) : 1) : (signed_char_Array_0[1][0][0] == ((signed char) (signed_char_Array_0[0][0][0] - signed_char_Array_0[0][1][0]))))) && ((signed_char_Array_0[0][0][0] < ((signed_char_Array_0[1][1][1] + signed_char_Array_0[1][0][1]) - ((((64) > (signed_char_Array_0[0][1][0])) ? (64) : (signed_char_Array_0[0][1][0]))))) ? (signed_char_Array_0[0][1][1] == ((signed char) ((64 - signed_char_Array_0[1][0][1]) - signed_char_Array_0[0][1][0]))) : (signed_char_Array_0[0][1][1] == ((signed char) ((((signed_char_Array_0[1][1][0]) < (signed_char_Array_0[0][0][1])) ? (signed_char_Array_0[1][1][0]) : (signed_char_Array_0[0][0][1]))))))) && (float_Array_0[0] == ((float) 128.91f)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_char_Array_0_0__1__1_=-64, last_1_signed_char_Array_0_1__0__0_=64, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 18, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1195 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1191 mSDsluCounter, 8731 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6231 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1244 IncrementalHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 2500 mSDtfsCounter, 1244 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=473occurred in iteration=17, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 561 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 2836 NumberOfCodeBlocks, 2836 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2670 ConstructedInterpolants, 0 QuantifiedInterpolants, 5929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 958 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 11543/11628 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:32:20,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:32:22,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:32:22,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:32:22,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:32:22,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:32:22,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:32:22,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:32:22,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:32:22,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:32:22,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:32:22,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:32:22,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:32:22,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:32:22,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:32:22,924 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:32:22,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:32:22,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:32:22,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:32:22,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:32:22,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:32:22,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:32:22,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:32:22,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:32:22,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:32:22,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:32:22,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:32:22,928 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:32:22,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:32:22,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:32:22,929 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 523cdc555ae18a7121d858cb3ce401c3fbc4c545022234654bee429dbd299e9d [2024-11-28 04:32:23,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:32:23,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:32:23,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:32:23,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:32:23,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:32:23,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:26,235 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad5f786bd/5d856416c7c748e995246ff0f60ac7ea/FLAGb11e7230d [2024-11-28 04:32:26,547 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:32:26,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:26,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad5f786bd/5d856416c7c748e995246ff0f60ac7ea/FLAGb11e7230d [2024-11-28 04:32:26,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad5f786bd/5d856416c7c748e995246ff0f60ac7ea [2024-11-28 04:32:26,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:32:26,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:32:26,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:26,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:32:26,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:32:26,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:26" (1/1) ... [2024-11-28 04:32:26,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b9bc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:26, skipping insertion in model container [2024-11-28 04:32:26,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:26" (1/1) ... [2024-11-28 04:32:26,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:32:26,812 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-28 04:32:26,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:26,959 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:32:26,972 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_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-57.i[916,929] [2024-11-28 04:32:27,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:27,077 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:32:27,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27 WrapperNode [2024-11-28 04:32:27,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:27,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:27,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:32:27,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:32:27,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,156 INFO L138 Inliner]: procedures = 33, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-11-28 04:32:27,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:27,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:32:27,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:32:27,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:32:27,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,191 INFO L175 MemorySlicer]: Split 110 memory accesses to 5 slices as follows [2, 24, 3, 72, 9]. 65 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 3, 1, 8, 1]. The 17 writes are split as follows [0, 3, 1, 10, 3]. [2024-11-28 04:32:27,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,220 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:32:27,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:32:27,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:32:27,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:32:27,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (1/1) ... [2024-11-28 04:32:27,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:32:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:27,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:32:27,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:32:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:32:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:32:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 04:32:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 04:32:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 04:32:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 04:32:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 04:32:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 04:32:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-28 04:32:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 04:32:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:32:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:32:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:32:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:32:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:32:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 04:32:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 04:32:27,543 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:32:27,545 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:32:28,184 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-28 04:32:28,184 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:32:28,195 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:32:28,195 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:32:28,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:28 BoogieIcfgContainer [2024-11-28 04:32:28,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:32:28,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:32:28,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:32:28,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:32:28,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:32:26" (1/3) ... [2024-11-28 04:32:28,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470abad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:28, skipping insertion in model container [2024-11-28 04:32:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:27" (2/3) ... [2024-11-28 04:32:28,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470abad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:28, skipping insertion in model container [2024-11-28 04:32:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:28" (3/3) ... [2024-11-28 04:32:28,206 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-57.i [2024-11-28 04:32:28,222 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:32:28,223 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-57.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:32:28,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:32:28,298 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;@2b4aa4ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:32:28,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:32:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:32:28,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:28,322 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:28,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:28,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1840313941, now seen corresponding path program 1 times [2024-11-28 04:32:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307206869] [2024-11-28 04:32:28,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:28,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:28,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:28,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:28,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:32:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:28,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:32:28,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-28 04:32:28,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:28,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:28,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307206869] [2024-11-28 04:32:28,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307206869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:28,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:28,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:32:28,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321805806] [2024-11-28 04:32:28,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:28,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:32:28,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:28,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:32:28,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:28,942 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:28,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:28,983 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-11-28 04:32:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:32:28,987 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-11-28 04:32:28,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:28,996 INFO L225 Difference]: With dead ends: 187 [2024-11-28 04:32:28,996 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 04:32:29,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:29,007 INFO L435 NwaCegarLoop]: 135 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, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:29,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 04:32:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-28 04:32:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:32:29,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-28 04:32:29,057 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-11-28 04:32:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:29,057 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-28 04:32:29,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:32:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-28 04:32:29,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:32:29,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:29,061 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:29,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:32:29,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:29,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:29,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash -957014791, now seen corresponding path program 1 times [2024-11-28 04:32:29,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:29,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614739461] [2024-11-28 04:32:29,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:29,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:29,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:29,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:29,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 04:32:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:29,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:32:29,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:29,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:29,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 04:32:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:30,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:30,720 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:30,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614739461] [2024-11-28 04:32:30,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614739461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:30,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:30,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:32:30,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952288399] [2024-11-28 04:32:30,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:30,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:32:30,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:30,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:32:30,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:32:30,724 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:31,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:31,239 INFO L93 Difference]: Finished difference Result 274 states and 400 transitions. [2024-11-28 04:32:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:32:31,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-11-28 04:32:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:31,242 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:32:31,242 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 04:32:31,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:31,244 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 94 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:31,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 322 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:32:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 04:32:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2024-11-28 04:32:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:32:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2024-11-28 04:32:31,291 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 134 [2024-11-28 04:32:31,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:31,292 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2024-11-28 04:32:31,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2024-11-28 04:32:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:32:31,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:31,295 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:31,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 04:32:31,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:31,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:31,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1707716275, now seen corresponding path program 1 times [2024-11-28 04:32:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:31,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882104642] [2024-11-28 04:32:31,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:31,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:31,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:31,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:31,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 04:32:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:31,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:32:31,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:32:32,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:32,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:32,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882104642] [2024-11-28 04:32:32,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882104642] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:32,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:32,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-28 04:32:32,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370814821] [2024-11-28 04:32:32,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:32,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:32,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:32,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:32,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:32:32,546 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:32,729 INFO L93 Difference]: Finished difference Result 321 states and 467 transitions. [2024-11-28 04:32:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:32,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-28 04:32:32,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:32,733 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:32:32,733 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 04:32:32,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:32:32,735 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 146 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:32,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 382 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 04:32:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-28 04:32:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 182 states have (on average 1.3681318681318682) internal successors, (249), 183 states have internal predecessors, (249), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:32:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 329 transitions. [2024-11-28 04:32:32,765 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 329 transitions. Word has length 141 [2024-11-28 04:32:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:32,765 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 329 transitions. [2024-11-28 04:32:32,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 329 transitions. [2024-11-28 04:32:32,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:32:32,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:32,768 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:32,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 04:32:32,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:32,971 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:32,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:32,972 INFO L85 PathProgramCache]: Analyzing trace with hash 898307279, now seen corresponding path program 1 times [2024-11-28 04:32:32,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:32,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426087867] [2024-11-28 04:32:32,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:32,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:32,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:32,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:32,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 04:32:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:33,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:32:33,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:33,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:33,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 04:32:33,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2024-11-28 04:32:33,913 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 04:32:33,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2024-11-28 04:32:34,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2024-11-28 04:32:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:34,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:34,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426087867] [2024-11-28 04:32:34,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426087867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:34,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:34,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:32:34,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244049392] [2024-11-28 04:32:34,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:34,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:32:34,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:34,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:32:34,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:32:34,136 INFO L87 Difference]: Start difference. First operand 226 states and 329 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:35,004 INFO L93 Difference]: Finished difference Result 433 states and 634 transitions. [2024-11-28 04:32:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:32:35,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-28 04:32:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:35,014 INFO L225 Difference]: With dead ends: 433 [2024-11-28 04:32:35,017 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 04:32:35,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:32:35,019 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 85 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:35,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 689 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:32:35,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 04:32:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 240. [2024-11-28 04:32:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 196 states have (on average 1.3724489795918366) internal successors, (269), 197 states have internal predecessors, (269), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:32:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 349 transitions. [2024-11-28 04:32:35,068 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 349 transitions. Word has length 141 [2024-11-28 04:32:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:35,069 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 349 transitions. [2024-11-28 04:32:35,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 349 transitions. [2024-11-28 04:32:35,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:35,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:35,076 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:35,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 04:32:35,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:35,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1860013238, now seen corresponding path program 1 times [2024-11-28 04:32:35,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:35,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560190377] [2024-11-28 04:32:35,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:35,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:35,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:35,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:35,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 04:32:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:35,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:32:35,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:35,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:35,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:35,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560190377] [2024-11-28 04:32:35,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560190377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:35,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:35,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:35,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020210524] [2024-11-28 04:32:35,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:35,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:35,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:35,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:35,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:35,642 INFO L87 Difference]: Start difference. First operand 240 states and 349 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:35,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:35,831 INFO L93 Difference]: Finished difference Result 509 states and 733 transitions. [2024-11-28 04:32:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:35,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 04:32:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:35,842 INFO L225 Difference]: With dead ends: 509 [2024-11-28 04:32:35,842 INFO L226 Difference]: Without dead ends: 338 [2024-11-28 04:32:35,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:35,844 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 41 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:35,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 467 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-28 04:32:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2024-11-28 04:32:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 283 states have (on average 1.3498233215547704) internal successors, (382), 286 states have internal predecessors, (382), 44 states have call successors, (44), 6 states have call predecessors, (44), 6 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 04:32:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 470 transitions. [2024-11-28 04:32:35,889 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 470 transitions. Word has length 144 [2024-11-28 04:32:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:35,890 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 470 transitions. [2024-11-28 04:32:35,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:35,891 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 470 transitions. [2024-11-28 04:32:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:35,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:35,895 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:35,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 04:32:36,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:36,099 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:36,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1733889480, now seen corresponding path program 1 times [2024-11-28 04:32:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:36,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427208579] [2024-11-28 04:32:36,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:36,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:36,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:36,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:36,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 04:32:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:36,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:32:36,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:36,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:36,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427208579] [2024-11-28 04:32:36,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427208579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:36,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:36,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:32:36,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188756657] [2024-11-28 04:32:36,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:36,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:32:36,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:36,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:32:36,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:32:36,353 INFO L87 Difference]: Start difference. First operand 334 states and 470 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:36,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:36,408 INFO L93 Difference]: Finished difference Result 564 states and 796 transitions. [2024-11-28 04:32:36,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:32:36,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 04:32:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:36,414 INFO L225 Difference]: With dead ends: 564 [2024-11-28 04:32:36,415 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 04:32:36,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:32:36,416 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:36,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 387 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 04:32:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2024-11-28 04:32:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 291 states have (on average 1.3402061855670102) internal successors, (390), 294 states have internal predecessors, (390), 44 states have call successors, (44), 6 states have call predecessors, (44), 6 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 04:32:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 478 transitions. [2024-11-28 04:32:36,458 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 478 transitions. Word has length 144 [2024-11-28 04:32:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:36,461 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 478 transitions. [2024-11-28 04:32:36,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:36,461 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 478 transitions. [2024-11-28 04:32:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:32:36,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:36,463 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:36,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 04:32:36,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:36,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:36,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1732042438, now seen corresponding path program 1 times [2024-11-28 04:32:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:36,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889262712] [2024-11-28 04:32:36,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:36,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:36,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:36,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-28 04:32:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:36,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:32:36,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:37,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:32:37,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 04:32:37,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:37,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 04:32:37,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:37,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 04:32:37,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:37,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-28 04:32:38,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:38,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-28 04:32:39,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:39,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 104 [2024-11-28 04:32:39,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:39,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 136 treesize of output 125 [2024-11-28 04:32:40,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:40,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 202 treesize of output 96 [2024-11-28 04:32:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 472 proven. 57 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-28 04:32:40,304 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:40,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:40,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889262712] [2024-11-28 04:32:40,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889262712] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:40,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:40,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 23 [2024-11-28 04:32:40,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215658763] [2024-11-28 04:32:40,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:40,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:40,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:40,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:40,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:32:40,620 INFO L87 Difference]: Start difference. First operand 342 states and 478 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:41,039 INFO L93 Difference]: Finished difference Result 645 states and 900 transitions. [2024-11-28 04:32:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:41,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-28 04:32:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:41,042 INFO L225 Difference]: With dead ends: 645 [2024-11-28 04:32:41,042 INFO L226 Difference]: Without dead ends: 419 [2024-11-28 04:32:41,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:32:41,044 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 62 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:41,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 680 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:32:41,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-28 04:32:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2024-11-28 04:32:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 355 states have (on average 1.332394366197183) internal successors, (473), 359 states have internal predecessors, (473), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 577 transitions. [2024-11-28 04:32:41,085 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 577 transitions. Word has length 144 [2024-11-28 04:32:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:41,085 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 577 transitions. [2024-11-28 04:32:41,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 577 transitions. [2024-11-28 04:32:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:41,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:41,090 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:41,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-28 04:32:41,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:41,291 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:41,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1641585567, now seen corresponding path program 1 times [2024-11-28 04:32:41,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:41,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078083793] [2024-11-28 04:32:41,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:41,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:41,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:41,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 04:32:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:41,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:32:41,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:41,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 04:32:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:41,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:41,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:41,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078083793] [2024-11-28 04:32:41,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078083793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:41,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:41,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:41,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114607208] [2024-11-28 04:32:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:41,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:41,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:41,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:41,587 INFO L87 Difference]: Start difference. First operand 416 states and 577 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:42,034 INFO L93 Difference]: Finished difference Result 1010 states and 1408 transitions. [2024-11-28 04:32:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:42,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:42,039 INFO L225 Difference]: With dead ends: 1010 [2024-11-28 04:32:42,039 INFO L226 Difference]: Without dead ends: 701 [2024-11-28 04:32:42,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:42,041 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 83 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:42,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 540 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:32:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-28 04:32:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 456. [2024-11-28 04:32:42,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 395 states have (on average 1.3443037974683545) internal successors, (531), 399 states have internal predecessors, (531), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 635 transitions. [2024-11-28 04:32:42,093 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 635 transitions. Word has length 145 [2024-11-28 04:32:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:42,094 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 635 transitions. [2024-11-28 04:32:42,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 635 transitions. [2024-11-28 04:32:42,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:42,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:42,100 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:42,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 04:32:42,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:42,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:42,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:42,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1267178335, now seen corresponding path program 1 times [2024-11-28 04:32:42,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:42,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666483194] [2024-11-28 04:32:42,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:42,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:42,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:42,303 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:42,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-28 04:32:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:42,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:32:42,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:42,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:42,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:42,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666483194] [2024-11-28 04:32:42,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666483194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:42,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:42,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:42,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331836486] [2024-11-28 04:32:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:42,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:42,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:42,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:42,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:42,598 INFO L87 Difference]: Start difference. First operand 456 states and 635 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:42,837 INFO L93 Difference]: Finished difference Result 900 states and 1253 transitions. [2024-11-28 04:32:42,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:42,841 INFO L225 Difference]: With dead ends: 900 [2024-11-28 04:32:42,841 INFO L226 Difference]: Without dead ends: 574 [2024-11-28 04:32:42,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:42,843 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 75 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:42,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 836 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-28 04:32:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 492. [2024-11-28 04:32:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 431 states have (on average 1.3433874709976799) internal successors, (579), 435 states have internal predecessors, (579), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 683 transitions. [2024-11-28 04:32:42,874 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 683 transitions. Word has length 145 [2024-11-28 04:32:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:42,875 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 683 transitions. [2024-11-28 04:32:42,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 683 transitions. [2024-11-28 04:32:42,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:42,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:42,877 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:42,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-28 04:32:43,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:43,078 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:43,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1747925283, now seen corresponding path program 1 times [2024-11-28 04:32:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:43,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11723831] [2024-11-28 04:32:43,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:43,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:43,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:43,080 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:43,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 04:32:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:43,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:32:43,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:32:43,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:43,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:43,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11723831] [2024-11-28 04:32:43,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11723831] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:43,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:43,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-28 04:32:43,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502641791] [2024-11-28 04:32:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:43,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:43,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:43,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:43,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:32:43,988 INFO L87 Difference]: Start difference. First operand 492 states and 683 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:44,211 INFO L93 Difference]: Finished difference Result 825 states and 1145 transitions. [2024-11-28 04:32:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:44,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:44,216 INFO L225 Difference]: With dead ends: 825 [2024-11-28 04:32:44,216 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 04:32:44,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:32:44,218 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 64 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:44,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 516 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 04:32:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 492. [2024-11-28 04:32:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 431 states have (on average 1.3410672853828307) internal successors, (578), 435 states have internal predecessors, (578), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 48 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:32:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 682 transitions. [2024-11-28 04:32:44,254 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 682 transitions. Word has length 145 [2024-11-28 04:32:44,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:44,254 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 682 transitions. [2024-11-28 04:32:44,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 682 transitions. [2024-11-28 04:32:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:44,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:44,258 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:44,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-28 04:32:44,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:44,459 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:44,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1845977435, now seen corresponding path program 1 times [2024-11-28 04:32:44,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:44,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372709610] [2024-11-28 04:32:44,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:44,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:44,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:44,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 04:32:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:44,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:32:44,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:44,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:44,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372709610] [2024-11-28 04:32:44,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372709610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:44,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:44,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:44,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498311311] [2024-11-28 04:32:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:44,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:44,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:44,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:44,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:44,797 INFO L87 Difference]: Start difference. First operand 492 states and 682 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:45,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:45,009 INFO L93 Difference]: Finished difference Result 833 states and 1148 transitions. [2024-11-28 04:32:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:45,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:45,014 INFO L225 Difference]: With dead ends: 833 [2024-11-28 04:32:45,014 INFO L226 Difference]: Without dead ends: 504 [2024-11-28 04:32:45,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:45,016 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 53 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:45,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 548 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:45,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-28 04:32:45,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 474. [2024-11-28 04:32:45,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 413 states have (on average 1.334140435835351) internal successors, (551), 416 states have internal predecessors, (551), 50 states have call successors, (50), 10 states have call predecessors, (50), 10 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 651 transitions. [2024-11-28 04:32:45,065 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 651 transitions. Word has length 145 [2024-11-28 04:32:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:45,066 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 651 transitions. [2024-11-28 04:32:45,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 651 transitions. [2024-11-28 04:32:45,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:32:45,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:45,068 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:45,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-28 04:32:45,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:45,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:45,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:45,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1244546081, now seen corresponding path program 1 times [2024-11-28 04:32:45,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:45,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722489985] [2024-11-28 04:32:45,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:45,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:45,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:45,277 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:45,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 04:32:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:45,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:32:45,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:32:45,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:45,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:45,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722489985] [2024-11-28 04:32:45,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722489985] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:45,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:45,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:32:45,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731859388] [2024-11-28 04:32:45,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:45,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:45,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:45,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:45,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:45,977 INFO L87 Difference]: Start difference. First operand 474 states and 651 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:46,155 INFO L93 Difference]: Finished difference Result 866 states and 1184 transitions. [2024-11-28 04:32:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-28 04:32:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:46,158 INFO L225 Difference]: With dead ends: 866 [2024-11-28 04:32:46,159 INFO L226 Difference]: Without dead ends: 541 [2024-11-28 04:32:46,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:32:46,160 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 137 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:46,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 435 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-28 04:32:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 461. [2024-11-28 04:32:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 399 states have (on average 1.330827067669173) internal successors, (531), 402 states have internal predecessors, (531), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 631 transitions. [2024-11-28 04:32:46,189 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 631 transitions. Word has length 145 [2024-11-28 04:32:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:46,190 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 631 transitions. [2024-11-28 04:32:46,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 631 transitions. [2024-11-28 04:32:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:46,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:46,192 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:46,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:46,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:46,393 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:46,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2144036769, now seen corresponding path program 1 times [2024-11-28 04:32:46,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:46,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053804947] [2024-11-28 04:32:46,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:46,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:46,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:46,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-28 04:32:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:46,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:32:46,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:46,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:32:46,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2024-11-28 04:32:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:46,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:46,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:46,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053804947] [2024-11-28 04:32:46,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053804947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:46,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:46,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024063838] [2024-11-28 04:32:46,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:46,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:32:46,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:46,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:32:46,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:46,963 INFO L87 Difference]: Start difference. First operand 461 states and 631 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:47,198 INFO L93 Difference]: Finished difference Result 475 states and 648 transitions. [2024-11-28 04:32:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:47,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:47,214 INFO L225 Difference]: With dead ends: 475 [2024-11-28 04:32:47,214 INFO L226 Difference]: Without dead ends: 473 [2024-11-28 04:32:47,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:47,216 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 161 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:47,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 850 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:47,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-28 04:32:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-28 04:32:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 411 states have (on average 1.3211678832116789) internal successors, (543), 414 states have internal predecessors, (543), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:32:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 643 transitions. [2024-11-28 04:32:47,246 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 643 transitions. Word has length 147 [2024-11-28 04:32:47,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:47,246 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 643 transitions. [2024-11-28 04:32:47,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 643 transitions. [2024-11-28 04:32:47,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:47,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:47,249 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:47,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-28 04:32:47,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:47,449 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:47,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2142189727, now seen corresponding path program 1 times [2024-11-28 04:32:47,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745152153] [2024-11-28 04:32:47,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:47,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:47,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:47,454 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:47,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-28 04:32:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:47,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:32:47,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:47,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:47,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 04:32:47,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:47,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 04:32:48,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2024-11-28 04:32:49,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:49,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 74 [2024-11-28 04:32:50,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:50,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 99 treesize of output 92 [2024-11-28 04:32:50,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:50,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 122 treesize of output 121 [2024-11-28 04:32:51,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:51,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 196 treesize of output 96 [2024-11-28 04:32:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 447 proven. 33 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-28 04:32:51,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:52,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:52,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745152153] [2024-11-28 04:32:52,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745152153] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:52,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:52,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [25] total 27 [2024-11-28 04:32:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245045676] [2024-11-28 04:32:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:52,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:52,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:52,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:52,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:32:52,344 INFO L87 Difference]: Start difference. First operand 473 states and 643 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:52,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:52,977 INFO L93 Difference]: Finished difference Result 1173 states and 1588 transitions. [2024-11-28 04:32:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:52,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:52,983 INFO L225 Difference]: With dead ends: 1173 [2024-11-28 04:32:52,983 INFO L226 Difference]: Without dead ends: 833 [2024-11-28 04:32:52,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:32:52,986 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 68 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:52,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 643 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:32:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-28 04:32:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 830. [2024-11-28 04:32:53,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 738 states have (on average 1.3197831978319783) internal successors, (974), 745 states have internal predecessors, (974), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:32:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1118 transitions. [2024-11-28 04:32:53,052 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1118 transitions. Word has length 147 [2024-11-28 04:32:53,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:53,052 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1118 transitions. [2024-11-28 04:32:53,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1118 transitions. [2024-11-28 04:32:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:53,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:53,055 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:53,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-28 04:32:53,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:53,256 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:53,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 339421219, now seen corresponding path program 1 times [2024-11-28 04:32:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:53,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936280932] [2024-11-28 04:32:53,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:53,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:53,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:53,259 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:53,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-28 04:32:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:53,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:32:53,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:32:53,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:54,049 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:54,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936280932] [2024-11-28 04:32:54,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936280932] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:54,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:54,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:32:54,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584732838] [2024-11-28 04:32:54,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:54,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:54,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:54,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:54,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:54,052 INFO L87 Difference]: Start difference. First operand 830 states and 1118 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:54,236 INFO L93 Difference]: Finished difference Result 1629 states and 2179 transitions. [2024-11-28 04:32:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:54,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:54,242 INFO L225 Difference]: With dead ends: 1629 [2024-11-28 04:32:54,242 INFO L226 Difference]: Without dead ends: 961 [2024-11-28 04:32:54,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:32:54,244 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 129 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:54,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 429 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-28 04:32:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 846. [2024-11-28 04:32:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 754 states have (on average 1.3103448275862069) internal successors, (988), 761 states have internal predecessors, (988), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:32:54,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1132 transitions. [2024-11-28 04:32:54,311 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1132 transitions. Word has length 147 [2024-11-28 04:32:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:54,312 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1132 transitions. [2024-11-28 04:32:54,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1132 transitions. [2024-11-28 04:32:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:32:54,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:54,314 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:54,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-28 04:32:54,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:54,515 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:54,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash 762123045, now seen corresponding path program 1 times [2024-11-28 04:32:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:54,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882912455] [2024-11-28 04:32:54,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:54,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:54,518 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-28 04:32:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:54,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:32:54,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 36 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:32:55,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:55,393 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:55,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882912455] [2024-11-28 04:32:55,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882912455] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:55,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:55,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:32:55,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361697887] [2024-11-28 04:32:55,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:55,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:55,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:55,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:55,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:32:55,396 INFO L87 Difference]: Start difference. First operand 846 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:55,593 INFO L93 Difference]: Finished difference Result 1597 states and 2125 transitions. [2024-11-28 04:32:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:55,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-28 04:32:55,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:55,598 INFO L225 Difference]: With dead ends: 1597 [2024-11-28 04:32:55,598 INFO L226 Difference]: Without dead ends: 949 [2024-11-28 04:32:55,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:32:55,600 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 95 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:55,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 435 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-28 04:32:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 832. [2024-11-28 04:32:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 740 states have (on average 1.3054054054054054) internal successors, (966), 747 states have internal predecessors, (966), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:32:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1110 transitions. [2024-11-28 04:32:55,665 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1110 transitions. Word has length 147 [2024-11-28 04:32:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:55,666 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1110 transitions. [2024-11-28 04:32:55,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1110 transitions. [2024-11-28 04:32:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:32:55,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:55,668 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:55,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-28 04:32:55,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:55,869 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:55,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1008121572, now seen corresponding path program 1 times [2024-11-28 04:32:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:55,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978814994] [2024-11-28 04:32:55,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:55,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:55,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:55,875 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:55,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-28 04:32:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:56,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:32:56,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:56,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:56,278 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:56,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978814994] [2024-11-28 04:32:56,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978814994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:56,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:56,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:56,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431003800] [2024-11-28 04:32:56,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:56,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:56,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:56,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:56,281 INFO L87 Difference]: Start difference. First operand 832 states and 1110 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:56,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:56,512 INFO L93 Difference]: Finished difference Result 1612 states and 2138 transitions. [2024-11-28 04:32:56,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:56,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-28 04:32:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:56,517 INFO L225 Difference]: With dead ends: 1612 [2024-11-28 04:32:56,518 INFO L226 Difference]: Without dead ends: 978 [2024-11-28 04:32:56,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:32:56,520 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:56,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 670 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:56,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-28 04:32:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 854. [2024-11-28 04:32:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 762 states have (on average 1.2992125984251968) internal successors, (990), 769 states have internal predecessors, (990), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:32:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1134 transitions. [2024-11-28 04:32:56,583 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1134 transitions. Word has length 148 [2024-11-28 04:32:56,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:56,584 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1134 transitions. [2024-11-28 04:32:56,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1134 transitions. [2024-11-28 04:32:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:32:56,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:56,586 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:56,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:56,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:56,791 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:56,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash -749956134, now seen corresponding path program 1 times [2024-11-28 04:32:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:56,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173893071] [2024-11-28 04:32:56,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:56,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:56,794 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:56,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-28 04:32:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:57,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:32:57,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:32:57,073 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:57,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:57,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173893071] [2024-11-28 04:32:57,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173893071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:57,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:57,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:57,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633793817] [2024-11-28 04:32:57,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:57,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:57,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:57,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:57,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:57,078 INFO L87 Difference]: Start difference. First operand 854 states and 1134 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:57,174 INFO L93 Difference]: Finished difference Result 1526 states and 2029 transitions. [2024-11-28 04:32:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-28 04:32:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:57,178 INFO L225 Difference]: With dead ends: 1526 [2024-11-28 04:32:57,179 INFO L226 Difference]: Without dead ends: 878 [2024-11-28 04:32:57,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:57,181 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:57,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-28 04:32:57,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 872. [2024-11-28 04:32:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 780 states have (on average 1.2923076923076924) internal successors, (1008), 787 states have internal predecessors, (1008), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:32:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1152 transitions. [2024-11-28 04:32:57,236 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1152 transitions. Word has length 148 [2024-11-28 04:32:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:57,237 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 1152 transitions. [2024-11-28 04:32:57,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:32:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1152 transitions. [2024-11-28 04:32:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:32:57,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:57,242 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:57,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-28 04:32:57,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:57,442 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:57,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:57,443 INFO L85 PathProgramCache]: Analyzing trace with hash -961998085, now seen corresponding path program 1 times [2024-11-28 04:32:57,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:57,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121776469] [2024-11-28 04:32:57,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:57,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:32:57,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:32:57,445 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:32:57,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-28 04:32:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:57,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:32:57,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:57,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:32:57,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 04:32:57,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:57,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-28 04:32:58,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:32:58,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-11-28 04:32:58,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2024-11-28 04:32:58,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 62 [2024-11-28 04:33:01,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:01,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 117 [2024-11-28 04:33:01,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:01,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 164 treesize of output 128 [2024-11-28 04:33:02,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:02,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 157 treesize of output 75 [2024-11-28 04:33:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 497 proven. 21 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-28 04:33:06,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:08,376 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:08,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:08,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121776469] [2024-11-28 04:33:08,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121776469] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:08,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:08,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [32] total 38 [2024-11-28 04:33:08,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213747811] [2024-11-28 04:33:08,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:08,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:33:08,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:08,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:33:08,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:33:08,378 INFO L87 Difference]: Start difference. First operand 872 states and 1152 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:09,728 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2024-11-28 04:33:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:33:09,729 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:33:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:09,734 INFO L225 Difference]: With dead ends: 1933 [2024-11-28 04:33:09,734 INFO L226 Difference]: Without dead ends: 1267 [2024-11-28 04:33:09,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:33:09,737 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 169 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:09,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 679 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:33:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-28 04:33:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1095. [2024-11-28 04:33:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1003 states have (on average 1.3110667996011964) internal successors, (1315), 1010 states have internal predecessors, (1315), 72 states have call successors, (72), 19 states have call predecessors, (72), 19 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 04:33:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1459 transitions. [2024-11-28 04:33:09,818 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1459 transitions. Word has length 149 [2024-11-28 04:33:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:09,818 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1459 transitions. [2024-11-28 04:33:09,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:09,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1459 transitions. [2024-11-28 04:33:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:33:09,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:09,820 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:09,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-28 04:33:10,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:10,021 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:10,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash -260933507, now seen corresponding path program 1 times [2024-11-28 04:33:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:10,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829317567] [2024-11-28 04:33:10,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:10,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:10,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:33:10,023 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:33:10,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-28 04:33:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:10,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:33:10,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:10,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:33:10,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 04:33:10,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:10,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 04:33:10,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:10,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-11-28 04:33:10,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:10,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-28 04:33:11,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:11,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 79 [2024-11-28 04:33:11,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:11,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 117 treesize of output 107 [2024-11-28 04:33:12,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:12,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 118 treesize of output 54 [2024-11-28 04:33:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 433 proven. 27 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 04:33:12,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:12,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:12,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829317567] [2024-11-28 04:33:12,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829317567] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:12,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:12,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-28 04:33:12,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841815630] [2024-11-28 04:33:12,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:12,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:33:12,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:12,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:33:12,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:33:12,312 INFO L87 Difference]: Start difference. First operand 1095 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:12,715 INFO L93 Difference]: Finished difference Result 2370 states and 3142 transitions. [2024-11-28 04:33:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:33:12,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:33:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:12,722 INFO L225 Difference]: With dead ends: 2370 [2024-11-28 04:33:12,722 INFO L226 Difference]: Without dead ends: 1552 [2024-11-28 04:33:12,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:33:12,724 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 71 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:12,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 400 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:33:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-11-28 04:33:12,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1413. [2024-11-28 04:33:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1303 states have (on average 1.3092862624712203) internal successors, (1706), 1312 states have internal predecessors, (1706), 84 states have call successors, (84), 25 states have call predecessors, (84), 25 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 04:33:12,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1874 transitions. [2024-11-28 04:33:12,801 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1874 transitions. Word has length 149 [2024-11-28 04:33:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:12,802 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1874 transitions. [2024-11-28 04:33:12,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1874 transitions. [2024-11-28 04:33:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:33:12,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:12,804 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:12,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-28 04:33:13,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:13,005 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:13,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:13,006 INFO L85 PathProgramCache]: Analyzing trace with hash 422744069, now seen corresponding path program 1 times [2024-11-28 04:33:13,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:13,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036814005] [2024-11-28 04:33:13,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:13,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:13,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:33:13,009 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:33:13,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-28 04:33:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:13,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:33:13,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:13,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 04:33:13,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-28 04:33:13,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-11-28 04:33:13,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:13,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 30 [2024-11-28 04:33:13,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 30 [2024-11-28 04:33:14,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 63 [2024-11-28 04:33:17,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:17,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 89 [2024-11-28 04:33:17,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:17,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 151 treesize of output 116 [2024-11-28 04:33:18,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:18,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 79 [2024-11-28 04:33:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 491 proven. 21 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 04:33:19,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:20,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:20,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036814005] [2024-11-28 04:33:20,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036814005] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:20,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:20,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [32] total 38 [2024-11-28 04:33:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365393511] [2024-11-28 04:33:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:20,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:33:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:20,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:33:20,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1161, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:33:20,222 INFO L87 Difference]: Start difference. First operand 1413 states and 1874 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:21,596 INFO L93 Difference]: Finished difference Result 2613 states and 3453 transitions. [2024-11-28 04:33:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:33:21,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:33:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:21,604 INFO L225 Difference]: With dead ends: 2613 [2024-11-28 04:33:21,604 INFO L226 Difference]: Without dead ends: 1552 [2024-11-28 04:33:21,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=271, Invalid=1369, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:33:21,607 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 66 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:21,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 844 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:33:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-11-28 04:33:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1396. [2024-11-28 04:33:21,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1285 states have (on average 1.306614785992218) internal successors, (1679), 1294 states have internal predecessors, (1679), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 04:33:21,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1847 transitions. [2024-11-28 04:33:21,686 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1847 transitions. Word has length 149 [2024-11-28 04:33:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:21,687 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1847 transitions. [2024-11-28 04:33:21,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1847 transitions. [2024-11-28 04:33:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:33:21,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:21,689 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:21,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:21,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:21,890 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:21,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:21,892 INFO L85 PathProgramCache]: Analyzing trace with hash -260398211, now seen corresponding path program 1 times [2024-11-28 04:33:21,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:21,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120854895] [2024-11-28 04:33:21,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:21,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:33:21,895 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:33:21,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-28 04:33:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:22,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:33:22,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:22,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:33:22,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 04:33:22,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:22,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 04:33:22,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:22,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-11-28 04:33:22,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:22,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-28 04:33:23,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:23,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 75 [2024-11-28 04:33:23,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:23,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 104 [2024-11-28 04:33:23,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:23,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 108 treesize of output 50 [2024-11-28 04:33:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 433 proven. 27 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 04:33:23,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:24,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:24,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120854895] [2024-11-28 04:33:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120854895] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:24,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:24,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-28 04:33:24,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21312471] [2024-11-28 04:33:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:24,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:33:24,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:24,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:33:24,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:33:24,246 INFO L87 Difference]: Start difference. First operand 1396 states and 1847 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:24,658 INFO L93 Difference]: Finished difference Result 2517 states and 3327 transitions. [2024-11-28 04:33:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:33:24,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:33:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:24,665 INFO L225 Difference]: With dead ends: 2517 [2024-11-28 04:33:24,665 INFO L226 Difference]: Without dead ends: 1477 [2024-11-28 04:33:24,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:33:24,669 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 69 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:24,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 558 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:33:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-28 04:33:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1274. [2024-11-28 04:33:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1192 states have (on average 1.3171140939597314) internal successors, (1570), 1197 states have internal predecessors, (1570), 62 states have call successors, (62), 19 states have call predecessors, (62), 19 states have return successors, (62), 57 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:33:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1694 transitions. [2024-11-28 04:33:24,772 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1694 transitions. Word has length 149 [2024-11-28 04:33:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:24,774 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1694 transitions. [2024-11-28 04:33:24,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:24,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1694 transitions. [2024-11-28 04:33:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:33:24,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:24,776 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:24,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-28 04:33:24,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:24,977 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:24,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash 440666367, now seen corresponding path program 1 times [2024-11-28 04:33:24,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:24,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883068760] [2024-11-28 04:33:24,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:24,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:24,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:33:24,980 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:33:24,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-28 04:33:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:25,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 04:33:25,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:25,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:33:25,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 04:33:25,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:25,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 04:33:25,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:25,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 04:33:26,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2024-11-28 04:33:27,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 86 [2024-11-28 04:33:30,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:30,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 135 [2024-11-28 04:33:30,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:30,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 146 [2024-11-28 04:33:32,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:32,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 220 treesize of output 96 [2024-11-28 04:33:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 504 proven. 33 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 04:33:36,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:39,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:39,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883068760] [2024-11-28 04:33:39,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883068760] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:39,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:39,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [37] total 43 [2024-11-28 04:33:39,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663147824] [2024-11-28 04:33:39,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:39,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:33:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:39,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:33:39,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1477, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:33:39,296 INFO L87 Difference]: Start difference. First operand 1274 states and 1694 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:41,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:41,621 INFO L93 Difference]: Finished difference Result 2307 states and 3059 transitions. [2024-11-28 04:33:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:33:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:33:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:41,628 INFO L225 Difference]: With dead ends: 2307 [2024-11-28 04:33:41,628 INFO L226 Difference]: Without dead ends: 1389 [2024-11-28 04:33:41,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=357, Invalid=1713, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:33:41,631 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 107 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:41,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 714 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:33:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-11-28 04:33:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1247. [2024-11-28 04:33:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1165 states have (on average 1.3167381974248926) internal successors, (1534), 1170 states have internal predecessors, (1534), 62 states have call successors, (62), 19 states have call predecessors, (62), 19 states have return successors, (62), 57 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:33:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1658 transitions. [2024-11-28 04:33:41,716 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1658 transitions. Word has length 149 [2024-11-28 04:33:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:41,717 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1658 transitions. [2024-11-28 04:33:41,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:33:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1658 transitions. [2024-11-28 04:33:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:33:41,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:41,719 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:41,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-28 04:33:41,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:41,920 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:41,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1804402313, now seen corresponding path program 1 times [2024-11-28 04:33:41,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:41,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653255684] [2024-11-28 04:33:41,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:41,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:33:41,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:33:41,923 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:33:41,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-28 04:33:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:42,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-28 04:33:42,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:42,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:33:42,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 04:33:42,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:42,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 04:33:42,914 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:42,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 04:33:43,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 04:33:43,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 64 [2024-11-28 04:33:46,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:46,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 94 [2024-11-28 04:33:47,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:47,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 112 [2024-11-28 04:33:48,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:33:48,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 174 treesize of output 80 [2024-11-28 04:33:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 468 proven. 33 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 04:33:55,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:33:58,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:58,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653255684] [2024-11-28 04:33:58,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653255684] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:58,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [35] total 41 [2024-11-28 04:33:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815470372] [2024-11-28 04:33:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:58,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:33:58,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:58,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:33:58,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1365, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:33:58,435 INFO L87 Difference]: Start difference. First operand 1247 states and 1658 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:34:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:00,834 INFO L93 Difference]: Finished difference Result 2201 states and 2926 transitions. [2024-11-28 04:34:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:34:00,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-28 04:34:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:00,840 INFO L225 Difference]: With dead ends: 2201 [2024-11-28 04:34:00,841 INFO L226 Difference]: Without dead ends: 1310 [2024-11-28 04:34:00,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 253 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=303, Invalid=1589, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:34:00,843 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 209 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:00,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 791 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:34:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2024-11-28 04:34:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1080. [2024-11-28 04:34:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1028 states have (on average 1.33852140077821) internal successors, (1376), 1029 states have internal predecessors, (1376), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:34:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1456 transitions. [2024-11-28 04:34:00,890 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1456 transitions. Word has length 149 [2024-11-28 04:34:00,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:00,890 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1456 transitions. [2024-11-28 04:34:00,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:34:00,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1456 transitions. [2024-11-28 04:34:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 04:34:00,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:00,892 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:00,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:01,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:01,093 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:01,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash 166006165, now seen corresponding path program 1 times [2024-11-28 04:34:01,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:01,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406757890] [2024-11-28 04:34:01,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:01,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:01,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:01,096 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:01,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-28 04:34:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:01,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:34:01,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:01,453 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:34:01,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:01,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406757890] [2024-11-28 04:34:01,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406757890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:01,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:01,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:34:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152173606] [2024-11-28 04:34:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:01,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:34:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:01,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:34:01,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:34:01,455 INFO L87 Difference]: Start difference. First operand 1080 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:34:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:02,020 INFO L93 Difference]: Finished difference Result 2140 states and 2890 transitions. [2024-11-28 04:34:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:34:02,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-11-28 04:34:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:02,025 INFO L225 Difference]: With dead ends: 2140 [2024-11-28 04:34:02,026 INFO L226 Difference]: Without dead ends: 1416 [2024-11-28 04:34:02,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:34:02,027 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 96 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:02,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 440 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:34:02,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-28 04:34:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1224. [2024-11-28 04:34:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1172 states have (on average 1.341296928327645) internal successors, (1572), 1173 states have internal predecessors, (1572), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:34:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1652 transitions. [2024-11-28 04:34:02,078 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1652 transitions. Word has length 150 [2024-11-28 04:34:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:02,078 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1652 transitions. [2024-11-28 04:34:02,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:34:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1652 transitions. [2024-11-28 04:34:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:34:02,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:02,080 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:02,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:02,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:02,281 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:02,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1371848033, now seen corresponding path program 1 times [2024-11-28 04:34:02,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:02,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301841462] [2024-11-28 04:34:02,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:02,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:02,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:02,283 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:02,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-28 04:34:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:02,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:34:02,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:02,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:02,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:02,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:02,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:34:02,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:02,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-28 04:34:02,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:02,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 87 [2024-11-28 04:34:03,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:03,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 37 [2024-11-28 04:34:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-28 04:34:04,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:04,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:04,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301841462] [2024-11-28 04:34:04,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301841462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:04,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:04,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:34:04,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878832997] [2024-11-28 04:34:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:04,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:34:04,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:04,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:34:04,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:34:04,272 INFO L87 Difference]: Start difference. First operand 1224 states and 1652 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:17,132 INFO L93 Difference]: Finished difference Result 2756 states and 3710 transitions. [2024-11-28 04:34:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:34:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-28 04:34:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:17,139 INFO L225 Difference]: With dead ends: 2756 [2024-11-28 04:34:17,140 INFO L226 Difference]: Without dead ends: 1924 [2024-11-28 04:34:17,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:34:17,141 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 331 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:17,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 530 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-11-28 04:34:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-11-28 04:34:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1812. [2024-11-28 04:34:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1739 states have (on average 1.3335250143760782) internal successors, (2319), 1742 states have internal predecessors, (2319), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:34:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2427 transitions. [2024-11-28 04:34:17,219 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2427 transitions. Word has length 151 [2024-11-28 04:34:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:17,219 INFO L471 AbstractCegarLoop]: Abstraction has 1812 states and 2427 transitions. [2024-11-28 04:34:17,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2427 transitions. [2024-11-28 04:34:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:34:17,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:17,221 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:17,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-28 04:34:17,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:17,422 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:17,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash -691789663, now seen corresponding path program 1 times [2024-11-28 04:34:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170872268] [2024-11-28 04:34:17,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:17,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:17,424 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:17,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-28 04:34:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:17,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:34:17,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:17,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:34:17,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:17,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:34:17,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:17,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-28 04:34:17,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:17,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 73 [2024-11-28 04:34:18,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:18,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 33 [2024-11-28 04:34:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 04:34:18,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:18,338 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:18,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170872268] [2024-11-28 04:34:18,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170872268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:18,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:18,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:34:18,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583950231] [2024-11-28 04:34:18,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:18,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:34:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:18,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:34:18,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:18,339 INFO L87 Difference]: Start difference. First operand 1812 states and 2427 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:20,396 INFO L93 Difference]: Finished difference Result 3194 states and 4293 transitions. [2024-11-28 04:34:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:34:20,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-28 04:34:20,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:20,403 INFO L225 Difference]: With dead ends: 3194 [2024-11-28 04:34:20,403 INFO L226 Difference]: Without dead ends: 1932 [2024-11-28 04:34:20,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:34:20,405 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 241 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:20,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1149 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:34:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2024-11-28 04:34:20,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1870. [2024-11-28 04:34:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1794 states have (on average 1.3288740245261985) internal successors, (2384), 1797 states have internal predecessors, (2384), 56 states have call successors, (56), 19 states have call predecessors, (56), 19 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 04:34:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2496 transitions. [2024-11-28 04:34:20,502 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2496 transitions. Word has length 151 [2024-11-28 04:34:20,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:20,503 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2496 transitions. [2024-11-28 04:34:20,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2496 transitions. [2024-11-28 04:34:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:34:20,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:20,505 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:20,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-28 04:34:20,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:20,706 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:20,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:20,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1394480287, now seen corresponding path program 1 times [2024-11-28 04:34:20,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:20,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014401686] [2024-11-28 04:34:20,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:20,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:20,708 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:20,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-28 04:34:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:21,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:34:21,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:21,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:21,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:34:21,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:21,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 04:34:21,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:21,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-28 04:34:21,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:21,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 53 [2024-11-28 04:34:21,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:21,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 90 [2024-11-28 04:34:22,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:22,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 42 [2024-11-28 04:34:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-28 04:34:22,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:22,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:22,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014401686] [2024-11-28 04:34:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014401686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:22,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:34:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053586323] [2024-11-28 04:34:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:22,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:34:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:22,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:34:22,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:34:22,309 INFO L87 Difference]: Start difference. First operand 1870 states and 2496 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:34:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:24,523 INFO L93 Difference]: Finished difference Result 3382 states and 4516 transitions. [2024-11-28 04:34:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:34:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2024-11-28 04:34:24,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:24,530 INFO L225 Difference]: With dead ends: 3382 [2024-11-28 04:34:24,530 INFO L226 Difference]: Without dead ends: 2062 [2024-11-28 04:34:24,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:34:24,533 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 317 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:24,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1099 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:34:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2024-11-28 04:34:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1992. [2024-11-28 04:34:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1896 states have (on average 1.3185654008438819) internal successors, (2500), 1901 states have internal predecessors, (2500), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:34:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2640 transitions. [2024-11-28 04:34:24,628 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2640 transitions. Word has length 151 [2024-11-28 04:34:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:24,629 INFO L471 AbstractCegarLoop]: Abstraction has 1992 states and 2640 transitions. [2024-11-28 04:34:24,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:34:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2640 transitions. [2024-11-28 04:34:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:34:24,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:24,630 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:24,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-28 04:34:24,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:24,831 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:24,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:24,831 INFO L85 PathProgramCache]: Analyzing trace with hash -714421917, now seen corresponding path program 1 times [2024-11-28 04:34:24,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:24,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648936046] [2024-11-28 04:34:24,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:24,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:24,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:24,833 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:24,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-28 04:34:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:25,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:34:25,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:25,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:25,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:34:25,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:34:25,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:34:25,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:25,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 43 [2024-11-28 04:34:25,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:25,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 77 [2024-11-28 04:34:25,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:25,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 36 [2024-11-28 04:34:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 04:34:26,018 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:26,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648936046] [2024-11-28 04:34:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648936046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:34:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691070675] [2024-11-28 04:34:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:26,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:34:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:26,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:34:26,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:34:26,020 INFO L87 Difference]: Start difference. First operand 1992 states and 2640 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:27,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:27,515 INFO L93 Difference]: Finished difference Result 3496 states and 4648 transitions. [2024-11-28 04:34:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:34:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-28 04:34:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:27,523 INFO L225 Difference]: With dead ends: 3496 [2024-11-28 04:34:27,523 INFO L226 Difference]: Without dead ends: 2054 [2024-11-28 04:34:27,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:34:27,525 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 266 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:27,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 567 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:34:27,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-28 04:34:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1992. [2024-11-28 04:34:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1896 states have (on average 1.3164556962025316) internal successors, (2496), 1901 states have internal predecessors, (2496), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:34:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2636 transitions. [2024-11-28 04:34:27,649 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2636 transitions. Word has length 151 [2024-11-28 04:34:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:27,649 INFO L471 AbstractCegarLoop]: Abstraction has 1992 states and 2636 transitions. [2024-11-28 04:34:27,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2636 transitions. [2024-11-28 04:34:27,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:34:27,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:27,651 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:27,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-28 04:34:27,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:27,852 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:27,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:27,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1923608896, now seen corresponding path program 1 times [2024-11-28 04:34:27,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:27,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50334648] [2024-11-28 04:34:27,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:27,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:27,854 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:27,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-28 04:34:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:28,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:34:28,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:28,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:34:28,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:28,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:34:28,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:34:28,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:28,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 04:34:28,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:28,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 77 [2024-11-28 04:34:28,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:28,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 35 [2024-11-28 04:34:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:34:28,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:28,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:28,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50334648] [2024-11-28 04:34:28,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50334648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:28,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:28,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:34:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878756440] [2024-11-28 04:34:28,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:28,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:34:28,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:28,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:34:28,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:34:28,875 INFO L87 Difference]: Start difference. First operand 1992 states and 2636 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:31,324 INFO L93 Difference]: Finished difference Result 3727 states and 4932 transitions. [2024-11-28 04:34:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:34:31,325 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 152 [2024-11-28 04:34:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:31,333 INFO L225 Difference]: With dead ends: 3727 [2024-11-28 04:34:31,333 INFO L226 Difference]: Without dead ends: 2285 [2024-11-28 04:34:31,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:34:31,336 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 244 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:31,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1193 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:34:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2024-11-28 04:34:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2128. [2024-11-28 04:34:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2032 states have (on average 1.3208661417322836) internal successors, (2684), 2037 states have internal predecessors, (2684), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:34:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2824 transitions. [2024-11-28 04:34:31,512 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2824 transitions. Word has length 152 [2024-11-28 04:34:31,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:31,513 INFO L471 AbstractCegarLoop]: Abstraction has 2128 states and 2824 transitions. [2024-11-28 04:34:31,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2824 transitions. [2024-11-28 04:34:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:34:31,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:31,515 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:31,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-28 04:34:31,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:31,716 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:31,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1665443458, now seen corresponding path program 1 times [2024-11-28 04:34:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:31,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275446458] [2024-11-28 04:34:31,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:31,719 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:31,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-28 04:34:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:32,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:34:32,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:32,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:34:32,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:32,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:32,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:32,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:32,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-28 04:34:32,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:32,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 80 [2024-11-28 04:34:32,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:32,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 34 [2024-11-28 04:34:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-28 04:34:33,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:33,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275446458] [2024-11-28 04:34:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275446458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:33,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:33,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:34:33,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916469537] [2024-11-28 04:34:33,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:33,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:34:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:33,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:34:33,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:34:33,236 INFO L87 Difference]: Start difference. First operand 2128 states and 2824 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:44,341 INFO L93 Difference]: Finished difference Result 3771 states and 5014 transitions. [2024-11-28 04:34:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:34:44,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 152 [2024-11-28 04:34:44,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:44,350 INFO L225 Difference]: With dead ends: 3771 [2024-11-28 04:34:44,350 INFO L226 Difference]: Without dead ends: 2235 [2024-11-28 04:34:44,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:34:44,352 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 236 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:44,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 588 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-28 04:34:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2024-11-28 04:34:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2128. [2024-11-28 04:34:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2032 states have (on average 1.3188976377952757) internal successors, (2680), 2037 states have internal predecessors, (2680), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:34:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2820 transitions. [2024-11-28 04:34:44,509 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2820 transitions. Word has length 152 [2024-11-28 04:34:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:44,510 INFO L471 AbstractCegarLoop]: Abstraction has 2128 states and 2820 transitions. [2024-11-28 04:34:44,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:34:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2820 transitions. [2024-11-28 04:34:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:34:44,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:44,512 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:44,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-28 04:34:44,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:44,712 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:44,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -380862, now seen corresponding path program 1 times [2024-11-28 04:34:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057728191] [2024-11-28 04:34:44,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:44,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:44,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:44,715 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:44,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-28 04:34:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:45,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:34:45,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:45,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:34:45,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:45,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:34:45,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:34:45,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:45,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-28 04:34:45,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:45,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 86 [2024-11-28 04:34:45,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:45,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 40 [2024-11-28 04:34:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-28 04:34:46,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:46,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:46,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057728191] [2024-11-28 04:34:46,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057728191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:46,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:46,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:34:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931494036] [2024-11-28 04:34:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:46,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:34:46,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:46,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:34:46,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:34:46,547 INFO L87 Difference]: Start difference. First operand 2128 states and 2820 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:57,484 INFO L93 Difference]: Finished difference Result 3781 states and 5022 transitions. [2024-11-28 04:34:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:34:57,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-28 04:34:57,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:57,489 INFO L225 Difference]: With dead ends: 3781 [2024-11-28 04:34:57,490 INFO L226 Difference]: Without dead ends: 2245 [2024-11-28 04:34:57,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:34:57,492 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 351 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:57,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 586 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-28 04:34:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2024-11-28 04:34:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2134. [2024-11-28 04:34:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2038 states have (on average 1.3189401373895977) internal successors, (2688), 2043 states have internal predecessors, (2688), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:34:57,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2828 transitions. [2024-11-28 04:34:57,607 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2828 transitions. Word has length 152 [2024-11-28 04:34:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:57,607 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 2828 transitions. [2024-11-28 04:34:57,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:34:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2828 transitions. [2024-11-28 04:34:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 04:34:57,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:57,609 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:57,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-28 04:34:57,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:57,809 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:57,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash 257784576, now seen corresponding path program 1 times [2024-11-28 04:34:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:57,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677768049] [2024-11-28 04:34:57,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:57,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:34:57,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:34:57,812 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:34:57,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-28 04:34:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:58,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:34:58,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:58,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:58,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:58,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:58,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:58,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2024-11-28 04:34:58,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:58,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-28 04:34:58,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:34:58,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 31 [2024-11-28 04:34:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:34:58,516 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:58,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:58,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677768049] [2024-11-28 04:34:58,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677768049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:58,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:58,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:34:58,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883566860] [2024-11-28 04:34:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:58,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:34:58,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:58,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:34:58,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:58,518 INFO L87 Difference]: Start difference. First operand 2134 states and 2828 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:00,287 INFO L93 Difference]: Finished difference Result 3825 states and 5068 transitions. [2024-11-28 04:35:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:35:00,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 152 [2024-11-28 04:35:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:00,292 INFO L225 Difference]: With dead ends: 3825 [2024-11-28 04:35:00,292 INFO L226 Difference]: Without dead ends: 2283 [2024-11-28 04:35:00,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:00,294 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 133 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:00,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1538 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:35:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2024-11-28 04:35:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2128. [2024-11-28 04:35:00,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2032 states have (on average 1.3198818897637796) internal successors, (2682), 2037 states have internal predecessors, (2682), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2822 transitions. [2024-11-28 04:35:00,413 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2822 transitions. Word has length 152 [2024-11-28 04:35:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:00,414 INFO L471 AbstractCegarLoop]: Abstraction has 2128 states and 2822 transitions. [2024-11-28 04:35:00,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2822 transitions. [2024-11-28 04:35:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:00,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:00,416 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:00,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:00,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:00,616 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:00,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1171387236, now seen corresponding path program 1 times [2024-11-28 04:35:00,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:00,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927120843] [2024-11-28 04:35:00,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:00,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:00,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:00,619 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:00,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-28 04:35:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:00,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:35:00,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:00,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:00,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:01,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:01,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:01,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:01,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:01,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-28 04:35:01,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:01,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 21 [2024-11-28 04:35:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:35:01,491 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:01,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:01,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927120843] [2024-11-28 04:35:01,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927120843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:01,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:01,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:35:01,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271578350] [2024-11-28 04:35:01,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:01,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:35:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:01,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:35:01,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:35:01,493 INFO L87 Difference]: Start difference. First operand 2128 states and 2822 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:03,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:03,540 INFO L93 Difference]: Finished difference Result 4362 states and 5747 transitions. [2024-11-28 04:35:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:35:03,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-28 04:35:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:03,545 INFO L225 Difference]: With dead ends: 4362 [2024-11-28 04:35:03,545 INFO L226 Difference]: Without dead ends: 2826 [2024-11-28 04:35:03,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:03,547 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 168 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:03,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1089 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:35:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2024-11-28 04:35:03,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2436. [2024-11-28 04:35:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2340 states have (on average 1.323931623931624) internal successors, (3098), 2345 states have internal predecessors, (3098), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3238 transitions. [2024-11-28 04:35:03,662 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3238 transitions. Word has length 154 [2024-11-28 04:35:03,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:03,663 INFO L471 AbstractCegarLoop]: Abstraction has 2436 states and 3238 transitions. [2024-11-28 04:35:03,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3238 transitions. [2024-11-28 04:35:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:03,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:03,664 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:03,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:03,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:03,865 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:03,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash -913221798, now seen corresponding path program 1 times [2024-11-28 04:35:03,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:03,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10500282] [2024-11-28 04:35:03,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:03,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:03,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:03,870 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:03,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-28 04:35:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:04,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:35:04,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:04,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:04,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:04,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:04,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:35:04,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:04,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-28 04:35:04,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:04,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 25 [2024-11-28 04:35:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-11-28 04:35:05,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:05,569 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:05,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10500282] [2024-11-28 04:35:05,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10500282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:05,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:05,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:35:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958968215] [2024-11-28 04:35:05,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:05,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:35:05,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:05,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:35:05,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:05,570 INFO L87 Difference]: Start difference. First operand 2436 states and 3238 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:17,552 INFO L93 Difference]: Finished difference Result 4104 states and 5485 transitions. [2024-11-28 04:35:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:17,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2024-11-28 04:35:17,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:17,558 INFO L225 Difference]: With dead ends: 4104 [2024-11-28 04:35:17,558 INFO L226 Difference]: Without dead ends: 2302 [2024-11-28 04:35:17,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:35:17,561 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 204 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:17,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 411 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-28 04:35:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-28 04:35:17,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2300. [2024-11-28 04:35:17,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2204 states have (on average 1.3157894736842106) internal successors, (2900), 2209 states have internal predecessors, (2900), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3040 transitions. [2024-11-28 04:35:17,721 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3040 transitions. Word has length 154 [2024-11-28 04:35:17,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:17,722 INFO L471 AbstractCegarLoop]: Abstraction has 2300 states and 3040 transitions. [2024-11-28 04:35:17,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:17,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3040 transitions. [2024-11-28 04:35:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:17,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:17,723 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:17,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-28 04:35:17,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:17,924 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:17,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:17,924 INFO L85 PathProgramCache]: Analyzing trace with hash 751840798, now seen corresponding path program 1 times [2024-11-28 04:35:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:17,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113964838] [2024-11-28 04:35:17,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:17,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:17,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:17,928 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:17,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-28 04:35:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:18,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:35:18,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:18,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:18,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:18,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:18,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:18,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:18,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-28 04:35:18,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:18,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-28 04:35:18,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:18,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 21 [2024-11-28 04:35:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-28 04:35:19,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:19,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113964838] [2024-11-28 04:35:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113964838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:35:19,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119456908] [2024-11-28 04:35:19,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:19,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:35:19,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:19,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:35:19,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:35:19,543 INFO L87 Difference]: Start difference. First operand 2300 states and 3040 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:30,409 INFO L93 Difference]: Finished difference Result 3968 states and 5281 transitions. [2024-11-28 04:35:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-28 04:35:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:30,415 INFO L225 Difference]: With dead ends: 3968 [2024-11-28 04:35:30,415 INFO L226 Difference]: Without dead ends: 2302 [2024-11-28 04:35:30,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:30,418 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 171 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:30,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 408 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-28 04:35:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-28 04:35:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2300. [2024-11-28 04:35:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2204 states have (on average 1.3130671506352087) internal successors, (2894), 2209 states have internal predecessors, (2894), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:30,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3034 transitions. [2024-11-28 04:35:30,628 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3034 transitions. Word has length 154 [2024-11-28 04:35:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:30,629 INFO L471 AbstractCegarLoop]: Abstraction has 2300 states and 3034 transitions. [2024-11-28 04:35:30,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3034 transitions. [2024-11-28 04:35:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:30,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:30,631 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:30,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:30,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:30,832 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:30,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:30,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1010006236, now seen corresponding path program 1 times [2024-11-28 04:35:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:30,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597545844] [2024-11-28 04:35:30,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:30,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:30,836 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:30,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-28 04:35:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:31,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:35:31,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:31,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:31,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:31,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:31,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:31,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-28 04:35:31,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:31,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-11-28 04:35:31,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:31,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 28 [2024-11-28 04:35:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 04:35:31,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:31,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:31,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597545844] [2024-11-28 04:35:31,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597545844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:31,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:31,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:35:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943546774] [2024-11-28 04:35:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:31,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:35:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:31,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:35:31,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:31,800 INFO L87 Difference]: Start difference. First operand 2300 states and 3034 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:35,046 INFO L93 Difference]: Finished difference Result 4172 states and 5495 transitions. [2024-11-28 04:35:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:35:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-28 04:35:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:35,054 INFO L225 Difference]: With dead ends: 4172 [2024-11-28 04:35:35,054 INFO L226 Difference]: Without dead ends: 2506 [2024-11-28 04:35:35,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:35:35,057 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 256 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:35,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1819 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:35:35,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-11-28 04:35:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2302. [2024-11-28 04:35:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2206 states have (on average 1.313689936536718) internal successors, (2898), 2211 states have internal predecessors, (2898), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3038 transitions. [2024-11-28 04:35:35,263 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3038 transitions. Word has length 154 [2024-11-28 04:35:35,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:35,263 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3038 transitions. [2024-11-28 04:35:35,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3038 transitions. [2024-11-28 04:35:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:35,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:35,266 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:35,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-28 04:35:35,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:35,466 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:35,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -840835240, now seen corresponding path program 1 times [2024-11-28 04:35:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204851898] [2024-11-28 04:35:35,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:35,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:35,471 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:35,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-28 04:35:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:35,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:35:35,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:35,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:35,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:35,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:35,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:36,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:36,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-11-28 04:35:36,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:36,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-11-28 04:35:36,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:36,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 20 [2024-11-28 04:35:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 04:35:37,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:37,023 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:37,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204851898] [2024-11-28 04:35:37,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204851898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:37,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:37,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:35:37,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436030436] [2024-11-28 04:35:37,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:37,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:35:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:37,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:35:37,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:35:37,024 INFO L87 Difference]: Start difference. First operand 2302 states and 3038 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:49,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:49,299 INFO L93 Difference]: Finished difference Result 4051 states and 5366 transitions. [2024-11-28 04:35:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:49,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-28 04:35:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:49,306 INFO L225 Difference]: With dead ends: 4051 [2024-11-28 04:35:49,306 INFO L226 Difference]: Without dead ends: 2383 [2024-11-28 04:35:49,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:49,309 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 167 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:49,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 480 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-28 04:35:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-28 04:35:49,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2302. [2024-11-28 04:35:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2206 states have (on average 1.3091568449682685) internal successors, (2888), 2211 states have internal predecessors, (2888), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3028 transitions. [2024-11-28 04:35:49,517 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3028 transitions. Word has length 154 [2024-11-28 04:35:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:49,518 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3028 transitions. [2024-11-28 04:35:49,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:35:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3028 transitions. [2024-11-28 04:35:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:35:49,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:49,520 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:49,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-28 04:35:49,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:49,723 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:49,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash 824227356, now seen corresponding path program 1 times [2024-11-28 04:35:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696772697] [2024-11-28 04:35:49,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:49,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:49,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:49,728 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:49,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-28 04:35:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:50,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:35:50,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:50,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:50,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:50,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 04:35:50,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:35:50,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:50,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 43 [2024-11-28 04:35:50,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:50,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 24 [2024-11-28 04:35:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 04:35:50,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:50,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:50,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696772697] [2024-11-28 04:35:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696772697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:50,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:50,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:35:50,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185799865] [2024-11-28 04:35:50,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:50,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:35:50,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:50,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:35:50,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:50,559 INFO L87 Difference]: Start difference. First operand 2302 states and 3028 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:51,778 INFO L93 Difference]: Finished difference Result 3959 states and 5218 transitions. [2024-11-28 04:35:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:35:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2024-11-28 04:35:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:51,783 INFO L225 Difference]: With dead ends: 3959 [2024-11-28 04:35:51,783 INFO L226 Difference]: Without dead ends: 2249 [2024-11-28 04:35:51,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:35:51,785 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 186 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:51,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 495 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:35:51,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-11-28 04:35:51,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2168. [2024-11-28 04:35:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2072 states have (on average 1.3021235521235521) internal successors, (2698), 2077 states have internal predecessors, (2698), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2838 transitions. [2024-11-28 04:35:51,930 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2838 transitions. Word has length 154 [2024-11-28 04:35:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:51,931 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 2838 transitions. [2024-11-28 04:35:51,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2838 transitions. [2024-11-28 04:35:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:35:51,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:51,933 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:51,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-11-28 04:35:52,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:52,134 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:52,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1415784321, now seen corresponding path program 1 times [2024-11-28 04:35:52,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:52,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913561828] [2024-11-28 04:35:52,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:52,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:52,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:52,137 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:52,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-28 04:35:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:52,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:35:52,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:52,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:35:52,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:52,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:52,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2024-11-28 04:35:52,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:52,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 04:35:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:35:52,836 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:52,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913561828] [2024-11-28 04:35:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913561828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:52,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:52,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:35:52,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118617883] [2024-11-28 04:35:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:52,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:35:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:52,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:35:52,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:35:52,837 INFO L87 Difference]: Start difference. First operand 2168 states and 2838 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:53,895 INFO L93 Difference]: Finished difference Result 3747 states and 4934 transitions. [2024-11-28 04:35:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:35:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-28 04:35:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:53,899 INFO L225 Difference]: With dead ends: 3747 [2024-11-28 04:35:53,900 INFO L226 Difference]: Without dead ends: 2171 [2024-11-28 04:35:53,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:53,901 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 66 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:53,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1329 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:35:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2024-11-28 04:35:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2120. [2024-11-28 04:35:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2024 states have (on average 1.3053359683794465) internal successors, (2642), 2029 states have internal predecessors, (2642), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2782 transitions. [2024-11-28 04:35:54,193 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2782 transitions. Word has length 155 [2024-11-28 04:35:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:54,194 INFO L471 AbstractCegarLoop]: Abstraction has 2120 states and 2782 transitions. [2024-11-28 04:35:54,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2782 transitions. [2024-11-28 04:35:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:35:54,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:54,196 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:54,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-28 04:35:54,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:54,397 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:54,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:54,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1315258047, now seen corresponding path program 1 times [2024-11-28 04:35:54,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:54,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238160732] [2024-11-28 04:35:54,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:54,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:54,400 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:54,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-28 04:35:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:54,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:35:54,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:54,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 04:35:54,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:35:54,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:54,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 04:35:55,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:55,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 04:35:55,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:55,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-11-28 04:35:55,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:35:55,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 26 [2024-11-28 04:35:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 04:35:55,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:55,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238160732] [2024-11-28 04:35:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238160732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:55,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:55,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:35:55,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374606021] [2024-11-28 04:35:55,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:35:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:55,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:35:55,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:35:55,676 INFO L87 Difference]: Start difference. First operand 2120 states and 2782 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:57,256 INFO L93 Difference]: Finished difference Result 3729 states and 4910 transitions. [2024-11-28 04:35:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:57,257 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 155 [2024-11-28 04:35:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:57,260 INFO L225 Difference]: With dead ends: 3729 [2024-11-28 04:35:57,260 INFO L226 Difference]: Without dead ends: 2201 [2024-11-28 04:35:57,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:35:57,262 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 158 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:57,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 977 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:35:57,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2024-11-28 04:35:57,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2072. [2024-11-28 04:35:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1976 states have (on average 1.3087044534412955) internal successors, (2586), 1981 states have internal predecessors, (2586), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2726 transitions. [2024-11-28 04:35:57,486 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2726 transitions. Word has length 155 [2024-11-28 04:35:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:57,487 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 2726 transitions. [2024-11-28 04:35:57,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:35:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2726 transitions. [2024-11-28 04:35:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 04:35:57,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:57,491 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:57,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-28 04:35:57,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:57,691 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:57,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash 550314820, now seen corresponding path program 1 times [2024-11-28 04:35:57,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:57,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688012888] [2024-11-28 04:35:57,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:57,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:57,694 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:57,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-28 04:35:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:58,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:35:58,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:58,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 04:35:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-28 04:35:58,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:58,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:58,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688012888] [2024-11-28 04:35:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688012888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:58,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:58,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:35:58,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401027997] [2024-11-28 04:35:58,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:58,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:35:58,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:58,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:35:58,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:35:58,157 INFO L87 Difference]: Start difference. First operand 2072 states and 2726 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:58,401 INFO L93 Difference]: Finished difference Result 4115 states and 5435 transitions. [2024-11-28 04:35:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:35:58,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 278 [2024-11-28 04:35:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:58,407 INFO L225 Difference]: With dead ends: 4115 [2024-11-28 04:35:58,407 INFO L226 Difference]: Without dead ends: 2635 [2024-11-28 04:35:58,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:35:58,410 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 58 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:58,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 666 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:35:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2024-11-28 04:35:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2184. [2024-11-28 04:35:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2088 states have (on average 1.3031609195402298) internal successors, (2721), 2093 states have internal predecessors, (2721), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2861 transitions. [2024-11-28 04:35:58,675 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2861 transitions. Word has length 278 [2024-11-28 04:35:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:58,677 INFO L471 AbstractCegarLoop]: Abstraction has 2184 states and 2861 transitions. [2024-11-28 04:35:58,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2861 transitions. [2024-11-28 04:35:58,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-28 04:35:58,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:58,681 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:58,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-28 04:35:58,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:58,882 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:58,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash -423009302, now seen corresponding path program 1 times [2024-11-28 04:35:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:58,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584600395] [2024-11-28 04:35:58,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:58,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:58,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:58,886 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:58,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-28 04:35:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:59,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:35:59,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-28 04:35:59,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:59,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:59,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584600395] [2024-11-28 04:35:59,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584600395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:59,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:59,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888990891] [2024-11-28 04:35:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:59,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:59,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:35:59,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:59,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:59,353 INFO L87 Difference]: Start difference. First operand 2184 states and 2861 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:59,544 INFO L93 Difference]: Finished difference Result 4067 states and 5335 transitions. [2024-11-28 04:35:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 280 [2024-11-28 04:35:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:59,549 INFO L225 Difference]: With dead ends: 4067 [2024-11-28 04:35:59,550 INFO L226 Difference]: Without dead ends: 2423 [2024-11-28 04:35:59,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:59,552 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 61 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:59,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:35:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-11-28 04:35:59,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2124. [2024-11-28 04:35:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2028 states have (on average 1.2781065088757397) internal successors, (2592), 2033 states have internal predecessors, (2592), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:35:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2732 transitions. [2024-11-28 04:35:59,782 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2732 transitions. Word has length 280 [2024-11-28 04:35:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:59,783 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 2732 transitions. [2024-11-28 04:35:59,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:35:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2732 transitions. [2024-11-28 04:35:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-28 04:35:59,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:59,787 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:59,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-28 04:35:59,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:59,988 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:59,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -452658814, now seen corresponding path program 1 times [2024-11-28 04:35:59,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388156597] [2024-11-28 04:35:59,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:59,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:35:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:35:59,992 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:35:59,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-28 04:36:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:00,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:36:00,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 1234 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-28 04:36:00,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-28 04:36:00,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388156597] [2024-11-28 04:36:00,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388156597] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:00,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:00,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-28 04:36:00,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601961466] [2024-11-28 04:36:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:00,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:36:00,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:00,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:36:00,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:36:00,997 INFO L87 Difference]: Start difference. First operand 2124 states and 2732 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:01,351 INFO L93 Difference]: Finished difference Result 3955 states and 5056 transitions. [2024-11-28 04:36:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:36:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 282 [2024-11-28 04:36:01,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:01,357 INFO L225 Difference]: With dead ends: 3955 [2024-11-28 04:36:01,357 INFO L226 Difference]: Without dead ends: 2423 [2024-11-28 04:36:01,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:01,360 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 59 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:01,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 558 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-11-28 04:36:01,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2003. [2024-11-28 04:36:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1907 states have (on average 1.2663869952805453) internal successors, (2415), 1912 states have internal predecessors, (2415), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2555 transitions. [2024-11-28 04:36:01,609 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2555 transitions. Word has length 282 [2024-11-28 04:36:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:01,609 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2555 transitions. [2024-11-28 04:36:01,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2555 transitions. [2024-11-28 04:36:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-28 04:36:01,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:01,614 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:01,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:01,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:01,815 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:01,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1451303246, now seen corresponding path program 1 times [2024-11-28 04:36:01,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:01,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490869406] [2024-11-28 04:36:01,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:01,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:01,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:01,819 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:01,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-28 04:36:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:02,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:36:02,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2583 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-28 04:36:02,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:02,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490869406] [2024-11-28 04:36:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490869406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:02,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:02,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:02,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087299115] [2024-11-28 04:36:02,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:02,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:02,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:02,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:02,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:02,312 INFO L87 Difference]: Start difference. First operand 2003 states and 2555 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:02,491 INFO L93 Difference]: Finished difference Result 3457 states and 4361 transitions. [2024-11-28 04:36:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:02,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 283 [2024-11-28 04:36:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:02,494 INFO L225 Difference]: With dead ends: 3457 [2024-11-28 04:36:02,494 INFO L226 Difference]: Without dead ends: 2030 [2024-11-28 04:36:02,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:02,495 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:02,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:36:02,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-28 04:36:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1859. [2024-11-28 04:36:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1763 states have (on average 1.2325581395348837) internal successors, (2173), 1768 states have internal predecessors, (2173), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2313 transitions. [2024-11-28 04:36:02,758 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2313 transitions. Word has length 283 [2024-11-28 04:36:02,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:02,759 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2313 transitions. [2024-11-28 04:36:02,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2313 transitions. [2024-11-28 04:36:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:02,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:02,761 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:02,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-28 04:36:02,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:02,961 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:02,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:02,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1064392808, now seen corresponding path program 1 times [2024-11-28 04:36:02,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:02,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130232494] [2024-11-28 04:36:02,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:02,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:02,964 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:02,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-28 04:36:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:03,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:36:03,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:03,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2024-11-28 04:36:03,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2024-11-28 04:36:03,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2024-11-28 04:36:03,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 139 [2024-11-28 04:36:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-28 04:36:03,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:03,774 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130232494] [2024-11-28 04:36:03,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130232494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:03,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:03,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:03,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156017690] [2024-11-28 04:36:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:03,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:03,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:03,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:03,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:03,775 INFO L87 Difference]: Start difference. First operand 1859 states and 2313 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:04,141 INFO L93 Difference]: Finished difference Result 3761 states and 4645 transitions. [2024-11-28 04:36:04,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:04,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:04,147 INFO L225 Difference]: With dead ends: 3761 [2024-11-28 04:36:04,147 INFO L226 Difference]: Without dead ends: 2478 [2024-11-28 04:36:04,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:04,149 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 55 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:04,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 638 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-28 04:36:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 1967. [2024-11-28 04:36:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1871 states have (on average 1.2378407268840192) internal successors, (2316), 1876 states have internal predecessors, (2316), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2456 transitions. [2024-11-28 04:36:04,385 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2456 transitions. Word has length 285 [2024-11-28 04:36:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:04,385 INFO L471 AbstractCegarLoop]: Abstraction has 1967 states and 2456 transitions. [2024-11-28 04:36:04,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2456 transitions. [2024-11-28 04:36:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:04,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:04,388 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:04,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-28 04:36:04,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:04,588 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:04,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:04,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1322558246, now seen corresponding path program 1 times [2024-11-28 04:36:04,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:04,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357130865] [2024-11-28 04:36:04,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:04,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:04,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:04,591 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:04,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-28 04:36:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:05,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:36:05,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-28 04:36:05,074 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:05,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357130865] [2024-11-28 04:36:05,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357130865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:05,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:05,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:36:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074677646] [2024-11-28 04:36:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:05,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:36:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:05,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:36:05,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:36:05,076 INFO L87 Difference]: Start difference. First operand 1967 states and 2456 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:05,367 INFO L93 Difference]: Finished difference Result 3796 states and 4695 transitions. [2024-11-28 04:36:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:36:05,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:05,370 INFO L225 Difference]: With dead ends: 3796 [2024-11-28 04:36:05,370 INFO L226 Difference]: Without dead ends: 2361 [2024-11-28 04:36:05,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:05,372 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 77 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:05,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 517 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-11-28 04:36:05,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2055. [2024-11-28 04:36:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1959 states have (on average 1.2246043899948953) internal successors, (2399), 1964 states have internal predecessors, (2399), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2539 transitions. [2024-11-28 04:36:05,536 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2539 transitions. Word has length 285 [2024-11-28 04:36:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:05,536 INFO L471 AbstractCegarLoop]: Abstraction has 2055 states and 2539 transitions. [2024-11-28 04:36:05,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2539 transitions. [2024-11-28 04:36:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:05,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:05,539 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:05,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-11-28 04:36:05,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:05,739 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:05,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:05,740 INFO L85 PathProgramCache]: Analyzing trace with hash 735752232, now seen corresponding path program 1 times [2024-11-28 04:36:05,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:05,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509782577] [2024-11-28 04:36:05,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:05,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:05,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:05,742 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:05,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-28 04:36:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:06,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:36:06,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1238 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-28 04:36:06,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-28 04:36:06,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:06,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509782577] [2024-11-28 04:36:06,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509782577] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:06,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:06,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-28 04:36:06,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997785306] [2024-11-28 04:36:06,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:06,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:06,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:06,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:06,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:06,731 INFO L87 Difference]: Start difference. First operand 2055 states and 2539 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:07,118 INFO L93 Difference]: Finished difference Result 3900 states and 4775 transitions. [2024-11-28 04:36:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:07,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:07,124 INFO L225 Difference]: With dead ends: 3900 [2024-11-28 04:36:07,124 INFO L226 Difference]: Without dead ends: 2327 [2024-11-28 04:36:07,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:36:07,127 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 70 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:07,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:36:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2024-11-28 04:36:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1913. [2024-11-28 04:36:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1817 states have (on average 1.1623555310952118) internal successors, (2112), 1822 states have internal predecessors, (2112), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2252 transitions. [2024-11-28 04:36:07,287 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2252 transitions. Word has length 285 [2024-11-28 04:36:07,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:07,287 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2252 transitions. [2024-11-28 04:36:07,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2252 transitions. [2024-11-28 04:36:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:07,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:07,290 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:07,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-11-28 04:36:07,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:07,490 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:07,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:07,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1463106856, now seen corresponding path program 1 times [2024-11-28 04:36:07,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:07,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864056716] [2024-11-28 04:36:07,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:07,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:07,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:07,493 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:07,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-28 04:36:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:07,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:36:07,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:07,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 04:36:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-28 04:36:08,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:08,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:08,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864056716] [2024-11-28 04:36:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864056716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:08,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:08,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779885918] [2024-11-28 04:36:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:08,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:08,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:08,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:08,021 INFO L87 Difference]: Start difference. First operand 1913 states and 2252 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:08,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:08,352 INFO L93 Difference]: Finished difference Result 3675 states and 4307 transitions. [2024-11-28 04:36:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:08,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:08,358 INFO L225 Difference]: With dead ends: 3675 [2024-11-28 04:36:08,358 INFO L226 Difference]: Without dead ends: 2260 [2024-11-28 04:36:08,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:08,360 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:08,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 836 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-11-28 04:36:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1696. [2024-11-28 04:36:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1600 states have (on average 1.161875) internal successors, (1859), 1605 states have internal predecessors, (1859), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 1999 transitions. [2024-11-28 04:36:08,531 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 1999 transitions. Word has length 285 [2024-11-28 04:36:08,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:08,532 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 1999 transitions. [2024-11-28 04:36:08,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 1999 transitions. [2024-11-28 04:36:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:08,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:08,534 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:08,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-11-28 04:36:08,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:08,735 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:08,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:08,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1206871910, now seen corresponding path program 1 times [2024-11-28 04:36:08,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:08,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312570411] [2024-11-28 04:36:08,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:08,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:08,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:08,738 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:08,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-28 04:36:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:09,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:36:09,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2024-11-28 04:36:09,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:09,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:09,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312570411] [2024-11-28 04:36:09,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312570411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:09,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:09,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:09,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200038036] [2024-11-28 04:36:09,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:09,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:09,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:09,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:09,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:09,259 INFO L87 Difference]: Start difference. First operand 1696 states and 1999 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:09,622 INFO L93 Difference]: Finished difference Result 3249 states and 3786 transitions. [2024-11-28 04:36:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:36:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:09,627 INFO L225 Difference]: With dead ends: 3249 [2024-11-28 04:36:09,627 INFO L226 Difference]: Without dead ends: 1826 [2024-11-28 04:36:09,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:36:09,630 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 42 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:09,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:36:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-28 04:36:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1576. [2024-11-28 04:36:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1480 states have (on average 1.1513513513513514) internal successors, (1704), 1485 states have internal predecessors, (1704), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1844 transitions. [2024-11-28 04:36:09,784 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1844 transitions. Word has length 285 [2024-11-28 04:36:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:09,785 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1844 transitions. [2024-11-28 04:36:09,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1844 transitions. [2024-11-28 04:36:09,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:09,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:09,787 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:09,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-11-28 04:36:09,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:09,987 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:09,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1676061096, now seen corresponding path program 1 times [2024-11-28 04:36:09,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:09,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135328611] [2024-11-28 04:36:09,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:09,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:09,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:09,990 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:09,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-28 04:36:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:10,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:36:10,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-11-28 04:36:10,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:10,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135328611] [2024-11-28 04:36:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135328611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:10,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:10,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:36:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765321375] [2024-11-28 04:36:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:10,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:36:10,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:10,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:36:10,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:36:10,639 INFO L87 Difference]: Start difference. First operand 1576 states and 1844 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:11,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:11,082 INFO L93 Difference]: Finished difference Result 3168 states and 3657 transitions. [2024-11-28 04:36:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:11,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:11,085 INFO L225 Difference]: With dead ends: 3168 [2024-11-28 04:36:11,085 INFO L226 Difference]: Without dead ends: 1769 [2024-11-28 04:36:11,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:36:11,086 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 118 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:11,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 869 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:36:11,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-11-28 04:36:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1510. [2024-11-28 04:36:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1414 states have (on average 1.1414427157001414) internal successors, (1614), 1419 states have internal predecessors, (1614), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 1754 transitions. [2024-11-28 04:36:11,224 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 1754 transitions. Word has length 285 [2024-11-28 04:36:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:11,224 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 1754 transitions. [2024-11-28 04:36:11,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 1754 transitions. [2024-11-28 04:36:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-28 04:36:11,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:11,226 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:11,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-11-28 04:36:11,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:11,427 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:11,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash -12882646, now seen corresponding path program 1 times [2024-11-28 04:36:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:11,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105135043] [2024-11-28 04:36:11,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:11,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:11,429 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:11,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-28 04:36:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:11,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:36:11,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-11-28 04:36:11,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:11,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:11,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105135043] [2024-11-28 04:36:11,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105135043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:11,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:11,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:11,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231318332] [2024-11-28 04:36:11,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:11,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:11,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:11,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:11,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:11,945 INFO L87 Difference]: Start difference. First operand 1510 states and 1754 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:12,295 INFO L93 Difference]: Finished difference Result 3055 states and 3500 transitions. [2024-11-28 04:36:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:36:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-11-28 04:36:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:12,298 INFO L225 Difference]: With dead ends: 3055 [2024-11-28 04:36:12,298 INFO L226 Difference]: Without dead ends: 1638 [2024-11-28 04:36:12,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:12,300 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 41 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:12,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 585 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-11-28 04:36:12,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1394. [2024-11-28 04:36:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1298 states have (on average 1.1163328197226503) internal successors, (1449), 1303 states have internal predecessors, (1449), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1589 transitions. [2024-11-28 04:36:12,464 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1589 transitions. Word has length 285 [2024-11-28 04:36:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:12,465 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1589 transitions. [2024-11-28 04:36:12,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1589 transitions. [2024-11-28 04:36:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-28 04:36:12,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:12,468 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:12,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:12,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:12,668 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:12,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:12,669 INFO L85 PathProgramCache]: Analyzing trace with hash -277411499, now seen corresponding path program 1 times [2024-11-28 04:36:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685790146] [2024-11-28 04:36:12,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:12,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:12,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:12,671 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:12,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-28 04:36:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:13,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:36:13,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 1234 proven. 36 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-28 04:36:13,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-11-28 04:36:13,601 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:13,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685790146] [2024-11-28 04:36:13,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685790146] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:13,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:13,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 04:36:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120894714] [2024-11-28 04:36:13,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:13,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:36:13,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:13,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:36:13,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:36:13,602 INFO L87 Difference]: Start difference. First operand 1394 states and 1589 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:13,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:13,988 INFO L93 Difference]: Finished difference Result 2867 states and 3234 transitions. [2024-11-28 04:36:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:13,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 286 [2024-11-28 04:36:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:13,993 INFO L225 Difference]: With dead ends: 2867 [2024-11-28 04:36:13,993 INFO L226 Difference]: Without dead ends: 1540 [2024-11-28 04:36:13,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:36:13,996 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 43 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:13,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 508 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-28 04:36:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1301. [2024-11-28 04:36:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1205 states have (on average 1.1012448132780084) internal successors, (1327), 1210 states have internal predecessors, (1327), 70 states have call successors, (70), 25 states have call predecessors, (70), 25 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 04:36:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1467 transitions. [2024-11-28 04:36:14,176 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1467 transitions. Word has length 286 [2024-11-28 04:36:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:14,176 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1467 transitions. [2024-11-28 04:36:14,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1467 transitions. [2024-11-28 04:36:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-28 04:36:14,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:14,178 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:14,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-11-28 04:36:14,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:14,378 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:14,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -888660648, now seen corresponding path program 1 times [2024-11-28 04:36:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:36:14,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858738652] [2024-11-28 04:36:14,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:14,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:14,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:36:14,381 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:36:14,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-28 04:36:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:14,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:36:14,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-11-28 04:36:14,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:14,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:36:14,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858738652] [2024-11-28 04:36:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858738652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:14,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:14,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:36:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044608231] [2024-11-28 04:36:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:14,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:36:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:14,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:36:14,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:36:14,873 INFO L87 Difference]: Start difference. First operand 1301 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:15,137 INFO L93 Difference]: Finished difference Result 2540 states and 2844 transitions. [2024-11-28 04:36:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:36:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 287 [2024-11-28 04:36:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:15,140 INFO L225 Difference]: With dead ends: 2540 [2024-11-28 04:36:15,140 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:36:15,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:15,143 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 28 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:15,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:36:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:36:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:36:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:15,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:36:15,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2024-11-28 04:36:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:15,144 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:36:15,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:36:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:36:15,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:36:15,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:36:15,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-11-28 04:36:15,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32dfb0e5-abc6-48e9-9aa5-53f6c93ea65b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:36:15,350 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:15,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:36:33,503 WARN L286 SmtUtils]: Spent 17.20s on a formula simplification. DAG size of input: 292 DAG size of output: 314 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 04:40:52,552 WARN L286 SmtUtils]: Spent 4.32m on a formula simplification. DAG size of input: 408 DAG size of output: 509 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 04:41:10,410 WARN L286 SmtUtils]: Spent 17.17s on a formula simplification. DAG size of input: 292 DAG size of output: 314 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)