./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:28:11,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:28:11,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:28:11,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:28:11,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:28:11,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:28:11,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:28:11,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:28:11,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:28:11,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:28:11,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:28:11,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:28:11,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:28:11,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:28:11,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:28:11,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:28:11,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:28:11,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:28:11,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:28:11,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:28:11,641 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:28:11,641 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:28:11,641 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:28:11,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:28:11,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:28:11,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:28:11,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:11,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:28:11,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:28:11,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:28:11,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:28:11,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:11,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:28:11,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:28:11,644 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:28:11,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:28:11,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:28:11,645 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 -> 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe [2024-11-27 20:28:12,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:28:12,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:28:12,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:28:12,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:28:12,045 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:28:12,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:15,314 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/f0fa21ea1/7ec02dfea46d4956b3a7c29cec669ff4/FLAG2c3c040f7 [2024-11-27 20:28:15,623 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:28:15,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:15,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/f0fa21ea1/7ec02dfea46d4956b3a7c29cec669ff4/FLAG2c3c040f7 [2024-11-27 20:28:15,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/f0fa21ea1/7ec02dfea46d4956b3a7c29cec669ff4 [2024-11-27 20:28:15,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:28:15,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:28:15,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:15,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:28:15,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:28:15,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:15" (1/1) ... [2024-11-27 20:28:15,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb620e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:15, skipping insertion in model container [2024-11-27 20:28:15,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:15" (1/1) ... [2024-11-27 20:28:15,917 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:28:16,068 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-11-27 20:28:16,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:16,173 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:28:16,186 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-11-27 20:28:16,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:16,276 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:28:16,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16 WrapperNode [2024-11-27 20:28:16,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:16,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:16,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:28:16,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:28:16,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,359 INFO L138 Inliner]: procedures = 29, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 401 [2024-11-27 20:28:16,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:16,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:28:16,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:28:16,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:28:16,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,419 INFO L175 MemorySlicer]: Split 101 memory accesses to 5 slices as follows [2, 37, 8, 40, 14]. 40 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 3, 2]. The 16 writes are split as follows [0, 9, 1, 3, 3]. [2024-11-27 20:28:16,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:28:16,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:28:16,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:28:16,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:28:16,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (1/1) ... [2024-11-27 20:28:16,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:16,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:16,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:28:16,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:28:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:28:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-27 20:28:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:28:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-27 20:28:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-27 20:28:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-27 20:28:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:28:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:28:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-27 20:28:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-27 20:28:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-27 20:28:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:28:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:28:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:28:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:28:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:28:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:28:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:28:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:28:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:28:16,699 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:28:16,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:28:17,206 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-27 20:28:17,207 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:28:17,217 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:28:17,217 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:28:17,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:17 BoogieIcfgContainer [2024-11-27 20:28:17,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:28:17,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:28:17,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:28:17,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:28:17,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:28:15" (1/3) ... [2024-11-27 20:28:17,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1323a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:17, skipping insertion in model container [2024-11-27 20:28:17,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:16" (2/3) ... [2024-11-27 20:28:17,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1323a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:17, skipping insertion in model container [2024-11-27 20:28:17,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:17" (3/3) ... [2024-11-27 20:28:17,227 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:17,244 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:28:17,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-46.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:28:17,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:28:17,336 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;@40401b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:28:17,338 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:28:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:28:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:28:17,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:17,355 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:17,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:17,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1009715545, now seen corresponding path program 1 times [2024-11-27 20:28:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850661638] [2024-11-27 20:28:17,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:17,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-27 20:28:17,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850661638] [2024-11-27 20:28:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850661638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:17,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611472888] [2024-11-27 20:28:17,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:17,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:17,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:17,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:17,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:28:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:18,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:28:18,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-27 20:28:18,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:28:18,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611472888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:18,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:18,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:28:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928874994] [2024-11-27 20:28:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:18,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:28:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:18,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:28:18,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:28:18,217 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:18,249 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-11-27 20:28:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:28:18,251 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-27 20:28:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:18,260 INFO L225 Difference]: With dead ends: 195 [2024-11-27 20:28:18,260 INFO L226 Difference]: Without dead ends: 97 [2024-11-27 20:28:18,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:28:18,269 INFO L435 NwaCegarLoop]: 140 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, 140 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 [2024-11-27 20:28:18,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:28:18,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-27 20:28:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-27 20:28:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:28:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2024-11-27 20:28:18,338 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 116 [2024-11-27 20:28:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:18,339 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2024-11-27 20:28:18,339 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:18,339 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2024-11-27 20:28:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:28:18,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:18,343 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:18,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:28:18,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:28:18,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:18,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:18,545 INFO L85 PathProgramCache]: Analyzing trace with hash -675339485, now seen corresponding path program 1 times [2024-11-27 20:28:18,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:18,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863433344] [2024-11-27 20:28:18,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:18,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:28:20,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:20,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863433344] [2024-11-27 20:28:20,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863433344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:20,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:20,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:28:20,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267916466] [2024-11-27 20:28:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:20,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:28:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:20,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:28:20,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:28:20,052 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:20,668 INFO L93 Difference]: Finished difference Result 364 states and 528 transitions. [2024-11-27 20:28:20,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:28:20,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-27 20:28:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:20,672 INFO L225 Difference]: With dead ends: 364 [2024-11-27 20:28:20,672 INFO L226 Difference]: Without dead ends: 270 [2024-11-27 20:28:20,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:28:20,674 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 372 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:20,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 612 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:28:20,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-27 20:28:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 265. [2024-11-27 20:28:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 224 states have (on average 1.3973214285714286) internal successors, (313), 225 states have internal predecessors, (313), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:28:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 387 transitions. [2024-11-27 20:28:20,714 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 387 transitions. Word has length 116 [2024-11-27 20:28:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:20,715 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 387 transitions. [2024-11-27 20:28:20,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 387 transitions. [2024-11-27 20:28:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:28:20,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:20,718 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:20,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:28:20,718 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:20,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1262145499, now seen corresponding path program 1 times [2024-11-27 20:28:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:20,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986836677] [2024-11-27 20:28:20,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:28:21,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:21,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986836677] [2024-11-27 20:28:21,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986836677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:21,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:21,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:28:21,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277613855] [2024-11-27 20:28:21,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:21,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:28:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:21,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:28:21,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:28:21,366 INFO L87 Difference]: Start difference. First operand 265 states and 387 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:21,610 INFO L93 Difference]: Finished difference Result 795 states and 1164 transitions. [2024-11-27 20:28:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:28:21,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-27 20:28:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:21,619 INFO L225 Difference]: With dead ends: 795 [2024-11-27 20:28:21,620 INFO L226 Difference]: Without dead ends: 533 [2024-11-27 20:28:21,621 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 [2024-11-27 20:28:21,624 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:21,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 523 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:28:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-27 20:28:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 301. [2024-11-27 20:28:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 260 states have (on average 1.396153846153846) internal successors, (363), 261 states have internal predecessors, (363), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:28:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 437 transitions. [2024-11-27 20:28:21,678 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 437 transitions. Word has length 116 [2024-11-27 20:28:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:21,678 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 437 transitions. [2024-11-27 20:28:21,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 437 transitions. [2024-11-27 20:28:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:28:21,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:21,685 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:21,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:28:21,686 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:21,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1079912016, now seen corresponding path program 1 times [2024-11-27 20:28:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130675974] [2024-11-27 20:28:21,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:28:21,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848832383] [2024-11-27 20:28:21,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:21,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:21,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:21,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:21,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:28:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:22,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:28:22,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:22,333 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 29 treesize of output 13 [2024-11-27 20:28:22,380 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 29 treesize of output 13 [2024-11-27 20:28:23,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:28:23,364 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 92 treesize of output 36 [2024-11-27 20:28:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:28:23,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:28:23,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:23,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130675974] [2024-11-27 20:28:23,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:28:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848832383] [2024-11-27 20:28:23,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848832383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:23,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:23,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:28:23,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461624738] [2024-11-27 20:28:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:23,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:28:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:23,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:28:23,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:28:23,696 INFO L87 Difference]: Start difference. First operand 301 states and 437 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:28,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:28:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:31,246 INFO L93 Difference]: Finished difference Result 774 states and 1118 transitions. [2024-11-27 20:28:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:28:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:28:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:31,251 INFO L225 Difference]: With dead ends: 774 [2024-11-27 20:28:31,251 INFO L226 Difference]: Without dead ends: 476 [2024-11-27 20:28:31,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:28:31,254 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 192 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:31,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 955 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-27 20:28:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-27 20:28:31,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 329. [2024-11-27 20:28:31,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 288 states have (on average 1.3923611111111112) internal successors, (401), 289 states have internal predecessors, (401), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:28:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 475 transitions. [2024-11-27 20:28:31,313 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 475 transitions. Word has length 118 [2024-11-27 20:28:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:31,313 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 475 transitions. [2024-11-27 20:28:31,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 475 transitions. [2024-11-27 20:28:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:28:31,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:31,319 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:31,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:28:31,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:31,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:31,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash -199951662, now seen corresponding path program 1 times [2024-11-27 20:28:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:31,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682160577] [2024-11-27 20:28:31,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:28:32,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682160577] [2024-11-27 20:28:32,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682160577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:32,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:32,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:28:32,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359643590] [2024-11-27 20:28:32,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:32,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:28:32,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:32,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:28:32,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:28:32,817 INFO L87 Difference]: Start difference. First operand 329 states and 475 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:35,907 INFO L93 Difference]: Finished difference Result 729 states and 1049 transitions. [2024-11-27 20:28:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:28:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:28:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:35,917 INFO L225 Difference]: With dead ends: 729 [2024-11-27 20:28:35,917 INFO L226 Difference]: Without dead ends: 399 [2024-11-27 20:28:35,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:28:35,919 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 258 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:35,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 646 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:28:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-27 20:28:35,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 329. [2024-11-27 20:28:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 288 states have (on average 1.3784722222222223) internal successors, (397), 289 states have internal predecessors, (397), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:28:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 471 transitions. [2024-11-27 20:28:35,971 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 471 transitions. Word has length 118 [2024-11-27 20:28:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:35,973 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 471 transitions. [2024-11-27 20:28:35,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:28:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 471 transitions. [2024-11-27 20:28:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:28:35,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:35,978 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:35,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:28:35,978 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:35,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash 93460718, now seen corresponding path program 1 times [2024-11-27 20:28:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:35,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665896489] [2024-11-27 20:28:35,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:35,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:28:36,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036186586] [2024-11-27 20:28:36,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:36,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:36,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:36,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:28:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:28:36,663 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:28:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:28:37,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:28:37,026 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:28:37,027 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:28:37,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:28:37,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 20:28:37,232 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 20:28:37,305 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:28:37,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:28:37 BoogieIcfgContainer [2024-11-27 20:28:37,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:28:37,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:28:37,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:28:37,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:28:37,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:17" (3/4) ... [2024-11-27 20:28:37,313 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:28:37,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:28:37,315 INFO L158 Benchmark]: Toolchain (without parser) took 21431.77ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 95.1MB in the beginning and 89.8MB in the end (delta: 5.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2024-11-27 20:28:37,315 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:28:37,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.24ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 80.7MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:28:37,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.26ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:28:37,316 INFO L158 Benchmark]: Boogie Preprocessor took 93.87ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 73.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:28:37,316 INFO L158 Benchmark]: RCFGBuilder took 762.84ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 44.3MB in the end (delta: 29.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 20:28:37,316 INFO L158 Benchmark]: TraceAbstraction took 20089.23ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 43.8MB in the beginning and 89.8MB in the end (delta: -46.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-27 20:28:37,317 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 184.5MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 17.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:28:37,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.24ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 80.7MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.26ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.87ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 73.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 762.84ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 44.3MB in the end (delta: 29.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20089.23ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 43.8MB in the beginning and 89.8MB in the end (delta: -46.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 184.5MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 17.6kB). 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 someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L25-L27] double double_Array_0[1] = { 31.75 }; [L25-L27] double double_Array_0[1] = { 31.75 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L34] unsigned char last_1_BOOL_unsigned_char_Array_0_4_ = 1; [L35] signed short int last_1_signed_short_int_Array_0_1_ = -4; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L105] isInitial = 1 [L106] FCALL initially() [L108] CALL updateLastVariables() [L97] EXPR BOOL_unsigned_char_Array_0[4] [L97] last_1_BOOL_unsigned_char_Array_0_4_ = BOOL_unsigned_char_Array_0[4] [L98] EXPR signed_short_int_Array_0[1] [L98] last_1_signed_short_int_Array_0_1_ = signed_short_int_Array_0[1] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L74] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L75] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L77] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L78] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L78] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L80] BOOL_unsigned_char_Array_0[3] = __VERIFIER_nondet_uchar() [L81] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L81] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L83] double_Array_0[0] = __VERIFIER_nondet_double() [L84] EXPR double_Array_0[0] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F [L84] EXPR double_Array_0[0] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L85] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L86] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L88] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L89] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[2] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[2] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(signed_char_Array_0[2] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] RET assume_abort_if_not(signed_char_Array_0[2] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] CALL assume_abort_if_not(signed_char_Array_0[2] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] RET assume_abort_if_not(signed_char_Array_0[2] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L92] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L93] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L93] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L109] RET updateVariables() [L110] CALL step() [L39] EXPR signed_short_int_Array_0[0] [L39] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L39] COND FALSE !(last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) [L44] EXPR signed_char_Array_0[2] [L44] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L44] EXPR ((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]) [L44] EXPR signed_char_Array_0[2] [L44] EXPR ((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L44] signed long int stepLocal_1 = (((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0])); [L45] EXPR signed_char_Array_0[0] [L45] EXPR signed_char_Array_0[2] [L45] signed long int stepLocal_0 = signed_char_Array_0[0] / signed_char_Array_0[2]; [L46] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L46] COND TRUE (- double_Array_0[0]) >= 16.75 [L47] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L47] COND TRUE stepLocal_0 >= signed_char_Array_0[0] [L48] COND TRUE stepLocal_1 > -32 [L49] BOOL_unsigned_char_Array_0[4] = 0 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L63] EXPR signed_char_Array_0[0] [L63] signed char stepLocal_2 = signed_char_Array_0[0]; [L64] EXPR signed_char_Array_0[0] [L64] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L64] EXPR signed_char_Array_0[0] | signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_2=-25] [L64] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L64] COND TRUE ((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < stepLocal_2 [L65] EXPR signed_short_int_Array_0[0] [L65] signed_short_int_Array_0[1] = (signed_short_int_Array_0[0] - 256) [L69] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L69] COND FALSE !(1 == signed_char_Array_0[2]) [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) [L101] EXPR BOOL_unsigned_char_Array_0[4] [L101] EXPR ((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101-L102] return (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 947 SdHoareTripleChecker+Valid, 10.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 947 mSDsluCounter, 2876 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2161 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1194 IncrementalHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 715 mSDtfsCounter, 1194 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 454 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 694 ConstructedInterpolants, 1 QuantifiedInterpolants, 3167 SizeOfPredicates, 3 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2158/2184 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 [2024-11-27 20:28:37,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:28:40,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:28:40,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:28:40,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:28:40,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:28:40,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:28:40,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:28:40,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:28:40,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:28:40,428 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:28:40,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:28:40,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:28:40,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:28:40,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:28:40,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:28:40,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:28:40,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:28:40,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:28:40,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:28:40,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:28:40,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:28:40,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:28:40,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:40,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:28:40,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:28:40,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:28:40,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:28:40,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:40,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:28:40,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:28:40,435 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 -> 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe [2024-11-27 20:28:40,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:28:40,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:28:40,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:28:40,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:28:40,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:28:40,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:43,935 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/c455c0cbd/5fbd75cbe94e4d6ca9b6f0e9e6803f35/FLAGba97960cc [2024-11-27 20:28:44,256 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:28:44,261 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:44,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/c455c0cbd/5fbd75cbe94e4d6ca9b6f0e9e6803f35/FLAGba97960cc [2024-11-27 20:28:44,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/data/c455c0cbd/5fbd75cbe94e4d6ca9b6f0e9e6803f35 [2024-11-27 20:28:44,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:28:44,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:28:44,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:44,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:28:44,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:28:44,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:44" (1/1) ... [2024-11-27 20:28:44,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718042a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:44, skipping insertion in model container [2024-11-27 20:28:44,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:28:44" (1/1) ... [2024-11-27 20:28:44,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:28:44,761 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-11-27 20:28:44,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:44,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:28:44,907 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_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-11-27 20:28:44,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:28:45,012 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:28:45,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45 WrapperNode [2024-11-27 20:28:45,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:28:45,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:45,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:28:45,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:28:45,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,097 INFO L138 Inliner]: procedures = 33, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 380 [2024-11-27 20:28:45,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:28:45,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:28:45,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:28:45,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:28:45,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,151 INFO L175 MemorySlicer]: Split 101 memory accesses to 5 slices as follows [2, 37, 8, 40, 14]. 40 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 3, 2]. The 16 writes are split as follows [0, 9, 1, 3, 3]. [2024-11-27 20:28:45,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:28:45,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:28:45,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:28:45,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:28:45,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (1/1) ... [2024-11-27 20:28:45,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:28:45,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:45,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:28:45,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:28:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:28:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-27 20:28:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-27 20:28:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-27 20:28:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 20:28:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-27 20:28:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-27 20:28:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-27 20:28:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:28:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:28:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-27 20:28:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-27 20:28:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-27 20:28:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-27 20:28:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-27 20:28:45,473 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:28:45,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:28:46,254 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-27 20:28:46,254 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:28:46,269 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:28:46,269 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:28:46,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:46 BoogieIcfgContainer [2024-11-27 20:28:46,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:28:46,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:28:46,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:28:46,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:28:46,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:28:44" (1/3) ... [2024-11-27 20:28:46,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59949cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:46, skipping insertion in model container [2024-11-27 20:28:46,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:28:45" (2/3) ... [2024-11-27 20:28:46,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59949cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:28:46, skipping insertion in model container [2024-11-27 20:28:46,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:28:46" (3/3) ... [2024-11-27 20:28:46,282 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-46.i [2024-11-27 20:28:46,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:28:46,299 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-46.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:28:46,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:28:46,377 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;@139e2a04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:28:46,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:28:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:28:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:28:46,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:46,391 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:46,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:46,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:46,396 INFO L85 PathProgramCache]: Analyzing trace with hash -421847647, now seen corresponding path program 1 times [2024-11-27 20:28:46,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:28:46,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565491387] [2024-11-27 20:28:46,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:46,407 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 [2024-11-27 20:28:46,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:28:46,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:28:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:28:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:46,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:28:46,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 20:28:46,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:28:46,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:28:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565491387] [2024-11-27 20:28:46,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565491387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:28:46,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:28:46,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:28:46,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681492398] [2024-11-27 20:28:46,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:28:46,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:28:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:28:46,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:28:46,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:28:46,937 INFO L87 Difference]: Start difference. First operand has 93 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:46,970 INFO L93 Difference]: Finished difference Result 179 states and 278 transitions. [2024-11-27 20:28:46,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:28:46,972 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-27 20:28:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:46,981 INFO L225 Difference]: With dead ends: 179 [2024-11-27 20:28:46,981 INFO L226 Difference]: Without dead ends: 89 [2024-11-27 20:28:46,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:28:46,994 INFO L435 NwaCegarLoop]: 128 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, 128 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 [2024-11-27 20:28:46,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:28:47,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-27 20:28:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-27 20:28:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:28:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2024-11-27 20:28:47,046 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 114 [2024-11-27 20:28:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:47,047 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2024-11-27 20:28:47,047 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:28:47,047 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2024-11-27 20:28:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:28:47,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:47,052 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:47,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:28:47,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:28:47,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:28:47,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:47,258 INFO L85 PathProgramCache]: Analyzing trace with hash 807549213, now seen corresponding path program 1 times [2024-11-27 20:28:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:28:47,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137232398] [2024-11-27 20:28:47,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:47,260 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 [2024-11-27 20:28:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:28:47,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:28:47,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:28:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:47,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:28:47,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:47,788 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 21 treesize of output 9 [2024-11-27 20:28:49,148 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 [2024-11-27 20:28:51,015 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 30 treesize of output 18 [2024-11-27 20:28:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:28:52,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:55,804 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 23 treesize of output 15 [2024-11-27 20:28:56,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:28:56,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137232398] [2024-11-27 20:28:56,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137232398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:56,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1523544172] [2024-11-27 20:28:56,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:56,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:28:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:28:56,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:28:56,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-27 20:28:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:57,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:28:57,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:58,002 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 17 treesize of output 9 [2024-11-27 20:28:59,300 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 [2024-11-27 20:29:01,864 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 [2024-11-27 20:29:03,435 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 34 treesize of output 22 [2024-11-27 20:29:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-27 20:29:05,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:06,101 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 23 treesize of output 15 [2024-11-27 20:29:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1523544172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:06,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:29:06,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-11-27 20:29:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892168965] [2024-11-27 20:29:06,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:29:06,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 20:29:06,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:06,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 20:29:06,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 20:29:06,425 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-27 20:29:32,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:29:33,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:33,270 INFO L93 Difference]: Finished difference Result 351 states and 497 transitions. [2024-11-27 20:29:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 20:29:33,271 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 114 [2024-11-27 20:29:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:33,275 INFO L225 Difference]: With dead ends: 351 [2024-11-27 20:29:33,279 INFO L226 Difference]: Without dead ends: 265 [2024-11-27 20:29:33,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 265 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=645, Invalid=2325, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 20:29:33,285 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 712 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:33,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1060 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2024-11-27 20:29:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-27 20:29:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 212. [2024-11-27 20:29:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 169 states have internal predecessors, (223), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:29:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 297 transitions. [2024-11-27 20:29:33,363 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 297 transitions. Word has length 114 [2024-11-27 20:29:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:33,364 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 297 transitions. [2024-11-27 20:29:33,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-27 20:29:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 297 transitions. [2024-11-27 20:29:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:29:33,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:33,371 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:33,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:33,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-27 20:29:33,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:29:33,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:33,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash 220743199, now seen corresponding path program 1 times [2024-11-27 20:29:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:33,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028569986] [2024-11-27 20:29:33,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:33,774 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 [2024-11-27 20:29:33,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:33,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:33,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:34,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:29:34,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:34,139 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 [2024-11-27 20:29:34,215 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 43 treesize of output 25 [2024-11-27 20:29:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:34,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:34,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:34,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028569986] [2024-11-27 20:29:34,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028569986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:34,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:34,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:29:34,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697021481] [2024-11-27 20:29:34,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:34,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:29:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:34,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:29:34,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:29:34,281 INFO L87 Difference]: Start difference. First operand 212 states and 297 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:34,864 INFO L93 Difference]: Finished difference Result 491 states and 699 transitions. [2024-11-27 20:29:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:29:34,866 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-27 20:29:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:34,872 INFO L225 Difference]: With dead ends: 491 [2024-11-27 20:29:34,872 INFO L226 Difference]: Without dead ends: 363 [2024-11-27 20:29:34,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:29:34,874 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:34,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 457 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:29:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-27 20:29:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 228. [2024-11-27 20:29:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 184 states have (on average 1.326086956521739) internal successors, (244), 185 states have internal predecessors, (244), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:29:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 318 transitions. [2024-11-27 20:29:34,942 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 318 transitions. Word has length 114 [2024-11-27 20:29:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:34,943 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 318 transitions. [2024-11-27 20:29:34,943 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 318 transitions. [2024-11-27 20:29:34,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:29:34,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:34,946 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:34,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:35,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:35,147 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:35,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:35,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1417211638, now seen corresponding path program 1 times [2024-11-27 20:29:35,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:35,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114873934] [2024-11-27 20:29:35,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:35,149 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 [2024-11-27 20:29:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:35,151 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:35,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:35,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:29:35,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:37,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:29:37,586 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 144 treesize of output 54 [2024-11-27 20:29:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 20:29:37,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:37,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:37,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114873934] [2024-11-27 20:29:37,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114873934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:37,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:37,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:29:37,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264257280] [2024-11-27 20:29:37,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:37,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:29:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:37,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:29:37,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:29:37,727 INFO L87 Difference]: Start difference. First operand 228 states and 318 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:29:39,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:39,638 INFO L93 Difference]: Finished difference Result 682 states and 954 transitions. [2024-11-27 20:29:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:29:39,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-27 20:29:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:39,645 INFO L225 Difference]: With dead ends: 682 [2024-11-27 20:29:39,646 INFO L226 Difference]: Without dead ends: 540 [2024-11-27 20:29:39,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:29:39,650 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 267 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:39,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1076 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:29:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-27 20:29:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 520. [2024-11-27 20:29:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.331764705882353) internal successors, (566), 431 states have internal predecessors, (566), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 20:29:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 726 transitions. [2024-11-27 20:29:39,756 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 726 transitions. Word has length 116 [2024-11-27 20:29:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:39,756 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 726 transitions. [2024-11-27 20:29:39,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:29:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 726 transitions. [2024-11-27 20:29:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:29:39,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:39,760 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:39,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:39,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:39,961 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:39,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash 407816570, now seen corresponding path program 1 times [2024-11-27 20:29:39,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611794742] [2024-11-27 20:29:39,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:39,963 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 [2024-11-27 20:29:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:39,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:39,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:40,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:29:40,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:40,378 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 23 treesize of output 11 [2024-11-27 20:29:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:40,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:40,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:40,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611794742] [2024-11-27 20:29:40,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611794742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:40,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:40,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:29:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21223848] [2024-11-27 20:29:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:40,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:29:40,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:40,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:29:40,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:29:40,509 INFO L87 Difference]: Start difference. First operand 520 states and 726 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:42,569 INFO L93 Difference]: Finished difference Result 1032 states and 1450 transitions. [2024-11-27 20:29:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:29:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-27 20:29:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:42,577 INFO L225 Difference]: With dead ends: 1032 [2024-11-27 20:29:42,577 INFO L226 Difference]: Without dead ends: 688 [2024-11-27 20:29:42,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:29:42,579 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 80 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:42,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 408 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:29:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-27 20:29:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 520. [2024-11-27 20:29:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.3247058823529412) internal successors, (563), 431 states have internal predecessors, (563), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 20:29:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 723 transitions. [2024-11-27 20:29:42,661 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 723 transitions. Word has length 116 [2024-11-27 20:29:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:42,661 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 723 transitions. [2024-11-27 20:29:42,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 723 transitions. [2024-11-27 20:29:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:29:42,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:42,667 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:42,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:42,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:42,868 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:42,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash 14789560, now seen corresponding path program 1 times [2024-11-27 20:29:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:42,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507633517] [2024-11-27 20:29:42,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:42,869 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 [2024-11-27 20:29:42,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:42,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:42,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:43,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:29:43,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:43,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:43,247 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:43,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507633517] [2024-11-27 20:29:43,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507633517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:43,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:43,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:29:43,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920083584] [2024-11-27 20:29:43,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:43,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:29:43,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:43,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:29:43,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:29:43,249 INFO L87 Difference]: Start difference. First operand 520 states and 723 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:43,449 INFO L93 Difference]: Finished difference Result 927 states and 1302 transitions. [2024-11-27 20:29:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:29:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-27 20:29:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:43,478 INFO L225 Difference]: With dead ends: 927 [2024-11-27 20:29:43,478 INFO L226 Difference]: Without dead ends: 535 [2024-11-27 20:29:43,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:29:43,481 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:43,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:29:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-27 20:29:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-11-27 20:29:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 440 states have (on average 1.3136363636363637) internal successors, (578), 446 states have internal predecessors, (578), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 20:29:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 738 transitions. [2024-11-27 20:29:43,571 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 738 transitions. Word has length 116 [2024-11-27 20:29:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:43,572 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 738 transitions. [2024-11-27 20:29:43,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 738 transitions. [2024-11-27 20:29:43,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:29:43,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:43,575 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:43,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:43,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:43,776 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:43,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash 316892812, now seen corresponding path program 1 times [2024-11-27 20:29:43,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300973854] [2024-11-27 20:29:43,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:43,778 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 [2024-11-27 20:29:43,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:43,781 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:43,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:44,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:29:44,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 20:29:44,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:44,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:44,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300973854] [2024-11-27 20:29:44,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300973854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:44,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:44,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:29:44,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992483552] [2024-11-27 20:29:44,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:44,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:29:44,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:44,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:29:44,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:29:44,085 INFO L87 Difference]: Start difference. First operand 535 states and 738 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:29:44,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:44,224 INFO L93 Difference]: Finished difference Result 993 states and 1375 transitions. [2024-11-27 20:29:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:29:44,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-27 20:29:44,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:44,232 INFO L225 Difference]: With dead ends: 993 [2024-11-27 20:29:44,232 INFO L226 Difference]: Without dead ends: 535 [2024-11-27 20:29:44,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:29:44,237 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:44,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:29:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-27 20:29:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-11-27 20:29:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 440 states have (on average 1.3068181818181819) internal successors, (575), 446 states have internal predecessors, (575), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 20:29:44,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 735 transitions. [2024-11-27 20:29:44,303 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 735 transitions. Word has length 116 [2024-11-27 20:29:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:44,304 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 735 transitions. [2024-11-27 20:29:44,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:29:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 735 transitions. [2024-11-27 20:29:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 20:29:44,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:44,307 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:44,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:44,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:44,507 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:44,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash 298100019, now seen corresponding path program 1 times [2024-11-27 20:29:44,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:44,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23804655] [2024-11-27 20:29:44,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:44,508 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 [2024-11-27 20:29:44,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:44,510 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:44,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:29:44,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:44,815 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 21 treesize of output 9 [2024-11-27 20:29:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:45,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:45,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:45,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23804655] [2024-11-27 20:29:45,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23804655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:45,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:45,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:29:45,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447281220] [2024-11-27 20:29:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:45,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:29:45,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:45,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:29:45,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:29:45,225 INFO L87 Difference]: Start difference. First operand 535 states and 735 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:45,854 INFO L93 Difference]: Finished difference Result 1593 states and 2212 transitions. [2024-11-27 20:29:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:29:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-27 20:29:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:45,862 INFO L225 Difference]: With dead ends: 1593 [2024-11-27 20:29:45,863 INFO L226 Difference]: Without dead ends: 1186 [2024-11-27 20:29:45,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:29:45,865 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 237 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:45,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 333 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:29:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-11-27 20:29:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1110. [2024-11-27 20:29:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 963 states have (on average 1.343717549325026) internal successors, (1294), 973 states have internal predecessors, (1294), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 20:29:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1546 transitions. [2024-11-27 20:29:46,007 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1546 transitions. Word has length 117 [2024-11-27 20:29:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:46,007 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1546 transitions. [2024-11-27 20:29:46,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1546 transitions. [2024-11-27 20:29:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 20:29:46,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:46,010 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:46,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:29:46,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:46,211 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:46,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2103538353, now seen corresponding path program 1 times [2024-11-27 20:29:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594187493] [2024-11-27 20:29:46,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:46,213 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 [2024-11-27 20:29:46,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:46,216 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:46,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:46,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:29:46,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:46,578 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 [2024-11-27 20:29:47,044 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 33 treesize of output 28 [2024-11-27 20:29:47,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:29:47,421 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 43 treesize of output 41 [2024-11-27 20:29:49,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:29:49,652 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 58 treesize of output 44 [2024-11-27 20:29:49,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:29:49,781 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 58 treesize of output 55 [2024-11-27 20:29:50,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:29:50,152 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 98 treesize of output 48 [2024-11-27 20:29:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 108 proven. 72 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-27 20:29:50,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:50,827 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594187493] [2024-11-27 20:29:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594187493] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:50,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:29:50,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 18 [2024-11-27 20:29:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678655169] [2024-11-27 20:29:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:50,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:29:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:50,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:29:50,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:29:50,829 INFO L87 Difference]: Start difference. First operand 1110 states and 1546 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:51,564 INFO L93 Difference]: Finished difference Result 2110 states and 2954 transitions. [2024-11-27 20:29:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:29:51,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-27 20:29:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:51,571 INFO L225 Difference]: With dead ends: 2110 [2024-11-27 20:29:51,571 INFO L226 Difference]: Without dead ends: 1132 [2024-11-27 20:29:51,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:29:51,576 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 43 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:51,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 694 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:29:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-27 20:29:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1100. [2024-11-27 20:29:51,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 953 states have (on average 1.347324239244491) internal successors, (1284), 963 states have internal predecessors, (1284), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 20:29:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1536 transitions. [2024-11-27 20:29:51,678 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1536 transitions. Word has length 117 [2024-11-27 20:29:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:51,678 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1536 transitions. [2024-11-27 20:29:51,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:51,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1536 transitions. [2024-11-27 20:29:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:29:51,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:51,681 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:51,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:51,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:51,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:51,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash -185295277, now seen corresponding path program 1 times [2024-11-27 20:29:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:51,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263057511] [2024-11-27 20:29:51,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:51,884 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 [2024-11-27 20:29:51,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:51,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:51,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:52,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:29:52,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:52,360 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 21 treesize of output 9 [2024-11-27 20:29:53,490 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 [2024-11-27 20:29:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:29:56,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:57,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:57,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263057511] [2024-11-27 20:29:57,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263057511] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:57,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:29:57,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2024-11-27 20:29:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929185107] [2024-11-27 20:29:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:57,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:29:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:57,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:29:57,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:29:57,425 INFO L87 Difference]: Start difference. First operand 1100 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:58,205 INFO L93 Difference]: Finished difference Result 2938 states and 4112 transitions. [2024-11-27 20:29:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:29:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:29:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:58,217 INFO L225 Difference]: With dead ends: 2938 [2024-11-27 20:29:58,217 INFO L226 Difference]: Without dead ends: 1970 [2024-11-27 20:29:58,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:29:58,225 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 132 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:58,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 404 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:29:58,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2024-11-27 20:29:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1486. [2024-11-27 20:29:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1339 states have (on average 1.368185212845407) internal successors, (1832), 1349 states have internal predecessors, (1832), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 20:29:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2084 transitions. [2024-11-27 20:29:58,366 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2084 transitions. Word has length 118 [2024-11-27 20:29:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:58,367 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 2084 transitions. [2024-11-27 20:29:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2084 transitions. [2024-11-27 20:29:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:29:58,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:58,372 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:58,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:29:58,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:58,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:58,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:58,577 INFO L85 PathProgramCache]: Analyzing trace with hash -994641903, now seen corresponding path program 1 times [2024-11-27 20:29:58,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525346796] [2024-11-27 20:29:58,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:58,578 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 [2024-11-27 20:29:58,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:58,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:58,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:58,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:29:58,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:58,889 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 [2024-11-27 20:29:58,980 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 43 treesize of output 25 [2024-11-27 20:29:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:29:59,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:29:59,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:29:59,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525346796] [2024-11-27 20:29:59,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525346796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:29:59,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:29:59,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:29:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361160553] [2024-11-27 20:29:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:29:59,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:29:59,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:59,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:29:59,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:29:59,049 INFO L87 Difference]: Start difference. First operand 1486 states and 2084 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:59,484 INFO L93 Difference]: Finished difference Result 3189 states and 4487 transitions. [2024-11-27 20:29:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:29:59,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:29:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:59,494 INFO L225 Difference]: With dead ends: 3189 [2024-11-27 20:29:59,494 INFO L226 Difference]: Without dead ends: 1845 [2024-11-27 20:29:59,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:29:59,498 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 111 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:59,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 885 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:29:59,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-11-27 20:29:59,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1771. [2024-11-27 20:29:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1552 states have (on average 1.3421391752577319) internal successors, (2083), 1569 states have internal predecessors, (2083), 188 states have call successors, (188), 30 states have call predecessors, (188), 30 states have return successors, (188), 171 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-27 20:29:59,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2459 transitions. [2024-11-27 20:29:59,685 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2459 transitions. Word has length 118 [2024-11-27 20:29:59,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:59,686 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 2459 transitions. [2024-11-27 20:29:59,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:29:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2459 transitions. [2024-11-27 20:29:59,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:29:59,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:59,690 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:59,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:29:59,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:29:59,891 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:29:59,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash -434022304, now seen corresponding path program 1 times [2024-11-27 20:29:59,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:29:59,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831054425] [2024-11-27 20:29:59,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:59,892 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 [2024-11-27 20:29:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:29:59,895 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:29:59,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:00,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:30:00,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:00,299 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 [2024-11-27 20:30:00,391 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 43 treesize of output 25 [2024-11-27 20:30:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:30:00,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:00,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831054425] [2024-11-27 20:30:00,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831054425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:00,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:00,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:30:00,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170761283] [2024-11-27 20:30:00,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:00,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:30:00,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:00,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:30:00,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:00,541 INFO L87 Difference]: Start difference. First operand 1771 states and 2459 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:01,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:01,750 INFO L93 Difference]: Finished difference Result 3498 states and 4860 transitions. [2024-11-27 20:30:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:30:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:30:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:01,760 INFO L225 Difference]: With dead ends: 3498 [2024-11-27 20:30:01,760 INFO L226 Difference]: Without dead ends: 1869 [2024-11-27 20:30:01,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:01,765 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 114 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:01,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 680 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:30:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2024-11-27 20:30:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1835. [2024-11-27 20:30:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1616 states have (on average 1.328589108910891) internal successors, (2147), 1633 states have internal predecessors, (2147), 188 states have call successors, (188), 30 states have call predecessors, (188), 30 states have return successors, (188), 171 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-27 20:30:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2523 transitions. [2024-11-27 20:30:01,988 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2523 transitions. Word has length 118 [2024-11-27 20:30:01,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:01,989 INFO L471 AbstractCegarLoop]: Abstraction has 1835 states and 2523 transitions. [2024-11-27 20:30:01,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2523 transitions. [2024-11-27 20:30:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:30:01,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:01,992 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:02,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:02,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:02,197 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:02,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:02,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1020828318, now seen corresponding path program 1 times [2024-11-27 20:30:02,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:02,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179805726] [2024-11-27 20:30:02,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:02,198 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 [2024-11-27 20:30:02,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:02,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:02,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:02,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:30:02,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:04,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:30:04,221 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 145 treesize of output 55 [2024-11-27 20:30:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-27 20:30:09,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:09,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:09,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179805726] [2024-11-27 20:30:09,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179805726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:09,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:09,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:30:09,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791395299] [2024-11-27 20:30:09,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:09,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:30:09,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:09,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:30:09,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:30:09,891 INFO L87 Difference]: Start difference. First operand 1835 states and 2523 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:30:13,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:15,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:16,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:20,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:24,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:28,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:30,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:37,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:30:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:40,194 INFO L93 Difference]: Finished difference Result 3437 states and 4714 transitions. [2024-11-27 20:30:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:30:40,195 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), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-27 20:30:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:40,204 INFO L225 Difference]: With dead ends: 3437 [2024-11-27 20:30:40,205 INFO L226 Difference]: Without dead ends: 1744 [2024-11-27 20:30:40,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:30:40,209 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 278 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:40,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 544 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 210 Invalid, 2 Unknown, 0 Unchecked, 30.1s Time] [2024-11-27 20:30:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-27 20:30:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1584. [2024-11-27 20:30:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1382 states have (on average 1.3205499276411) internal successors, (1825), 1396 states have internal predecessors, (1825), 170 states have call successors, (170), 31 states have call predecessors, (170), 31 states have return successors, (170), 156 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-27 20:30:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2165 transitions. [2024-11-27 20:30:40,393 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2165 transitions. Word has length 118 [2024-11-27 20:30:40,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:40,394 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2165 transitions. [2024-11-27 20:30:40,394 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), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 20:30:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2165 transitions. [2024-11-27 20:30:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:30:40,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:40,397 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:40,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:40,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:40,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:40,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:40,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1503648465, now seen corresponding path program 1 times [2024-11-27 20:30:40,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:40,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356813809] [2024-11-27 20:30:40,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:40,603 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 [2024-11-27 20:30:40,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:40,606 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:40,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:40,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:30:40,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:40,986 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 [2024-11-27 20:30:40,993 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 [2024-11-27 20:30:41,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:30:41,107 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 72 treesize of output 42 [2024-11-27 20:30:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:30:41,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:41,183 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356813809] [2024-11-27 20:30:41,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356813809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:41,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:41,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:30:41,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512699483] [2024-11-27 20:30:41,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:41,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:30:41,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:41,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:30:41,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:30:41,185 INFO L87 Difference]: Start difference. First operand 1584 states and 2165 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:41,573 INFO L93 Difference]: Finished difference Result 3088 states and 4225 transitions. [2024-11-27 20:30:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:30:41,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:30:41,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:41,582 INFO L225 Difference]: With dead ends: 3088 [2024-11-27 20:30:41,582 INFO L226 Difference]: Without dead ends: 1650 [2024-11-27 20:30:41,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:30:41,586 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 88 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:41,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 927 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:30:41,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-27 20:30:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1648. [2024-11-27 20:30:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1442 states have (on average 1.3072122052704578) internal successors, (1885), 1456 states have internal predecessors, (1885), 170 states have call successors, (170), 35 states have call predecessors, (170), 35 states have return successors, (170), 156 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-27 20:30:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2225 transitions. [2024-11-27 20:30:41,767 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2225 transitions. Word has length 118 [2024-11-27 20:30:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:41,767 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2225 transitions. [2024-11-27 20:30:41,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2225 transitions. [2024-11-27 20:30:41,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:30:41,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:41,771 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:41,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:41,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:41,971 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:41,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash 694301839, now seen corresponding path program 1 times [2024-11-27 20:30:41,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:41,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390000436] [2024-11-27 20:30:41,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:41,975 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 [2024-11-27 20:30:41,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:41,977 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:41,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:42,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:30:42,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:42,452 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 21 treesize of output 9 [2024-11-27 20:30:43,572 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 [2024-11-27 20:30:47,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:30:47,458 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 71 treesize of output 37 [2024-11-27 20:30:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:30:49,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:30:50,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390000436] [2024-11-27 20:30:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390000436] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:50,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:30:50,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-27 20:30:50,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941392463] [2024-11-27 20:30:50,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:50,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:50,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:50,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:30:50,893 INFO L87 Difference]: Start difference. First operand 1648 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:51,682 INFO L93 Difference]: Finished difference Result 3152 states and 4265 transitions. [2024-11-27 20:30:51,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:30:51,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-27 20:30:51,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:51,692 INFO L225 Difference]: With dead ends: 3152 [2024-11-27 20:30:51,692 INFO L226 Difference]: Without dead ends: 1650 [2024-11-27 20:30:51,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:30:51,698 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 77 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:51,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 507 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:30:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-27 20:30:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1404. [2024-11-27 20:30:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1236 states have (on average 1.3131067961165048) internal successors, (1623), 1244 states have internal predecessors, (1623), 134 states have call successors, (134), 33 states have call predecessors, (134), 33 states have return successors, (134), 126 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-27 20:30:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1891 transitions. [2024-11-27 20:30:51,845 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1891 transitions. Word has length 118 [2024-11-27 20:30:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:51,845 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1891 transitions. [2024-11-27 20:30:51,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:30:51,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1891 transitions. [2024-11-27 20:30:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:30:51,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:51,849 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:51,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:52,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:52,054 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:52,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1461470510, now seen corresponding path program 1 times [2024-11-27 20:30:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:52,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130600267] [2024-11-27 20:30:52,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:52,056 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 [2024-11-27 20:30:52,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:52,060 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:52,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:52,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:30:52,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:52,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:30:52,855 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 157 treesize of output 67 [2024-11-27 20:30:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 196 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-27 20:30:52,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:53,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:30:53,426 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 101 treesize of output 1 [2024-11-27 20:30:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:30:53,488 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:53,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130600267] [2024-11-27 20:30:53,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130600267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:53,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:30:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-27 20:30:53,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337869248] [2024-11-27 20:30:53,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:53,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:30:53,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:53,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:30:53,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:30:53,490 INFO L87 Difference]: Start difference. First operand 1404 states and 1891 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-27 20:30:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:55,132 INFO L93 Difference]: Finished difference Result 2190 states and 2920 transitions. [2024-11-27 20:30:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:30:55,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 118 [2024-11-27 20:30:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:55,137 INFO L225 Difference]: With dead ends: 2190 [2024-11-27 20:30:55,137 INFO L226 Difference]: Without dead ends: 763 [2024-11-27 20:30:55,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:30:55,140 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 107 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:55,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 662 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:30:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-27 20:30:55,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 743. [2024-11-27 20:30:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 653 states have (on average 1.2817764165390506) internal successors, (837), 655 states have internal predecessors, (837), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 20:30:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 977 transitions. [2024-11-27 20:30:55,256 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 977 transitions. Word has length 118 [2024-11-27 20:30:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:55,257 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 977 transitions. [2024-11-27 20:30:55,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-27 20:30:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 977 transitions. [2024-11-27 20:30:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:30:55,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:55,259 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:55,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:30:55,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:55,460 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:55,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 349099979, now seen corresponding path program 1 times [2024-11-27 20:30:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:55,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675393692] [2024-11-27 20:30:55,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:55,462 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 [2024-11-27 20:30:55,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:55,467 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:55,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:55,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:30:55,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:56,307 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 22 treesize of output 10 [2024-11-27 20:30:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-27 20:30:56,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:30:57,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:57,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675393692] [2024-11-27 20:30:57,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675393692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:57,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:30:57,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 20:30:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149610508] [2024-11-27 20:30:57,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:57,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:30:57,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:57,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:30:57,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:57,021 INFO L87 Difference]: Start difference. First operand 743 states and 977 transitions. Second operand has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:30:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:58,266 INFO L93 Difference]: Finished difference Result 1301 states and 1682 transitions. [2024-11-27 20:30:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:30:58,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 120 [2024-11-27 20:30:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:58,271 INFO L225 Difference]: With dead ends: 1301 [2024-11-27 20:30:58,271 INFO L226 Difference]: Without dead ends: 639 [2024-11-27 20:30:58,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:30:58,273 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 72 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:58,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 392 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:30:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-27 20:30:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 609. [2024-11-27 20:30:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 514 states have (on average 1.2295719844357977) internal successors, (632), 516 states have internal predecessors, (632), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 20:30:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 772 transitions. [2024-11-27 20:30:58,373 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 772 transitions. Word has length 120 [2024-11-27 20:30:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:58,374 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 772 transitions. [2024-11-27 20:30:58,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:30:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 772 transitions. [2024-11-27 20:30:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:30:58,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:58,376 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:58,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:58,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:58,577 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:58,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1358607819, now seen corresponding path program 1 times [2024-11-27 20:30:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:58,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928603231] [2024-11-27 20:30:58,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:58,579 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 [2024-11-27 20:30:58,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:58,582 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:30:58,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:30:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:59,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:30:59,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:59,167 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 21 treesize of output 9 [2024-11-27 20:31:00,386 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 [2024-11-27 20:31:05,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:31:05,198 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 80 treesize of output 42 [2024-11-27 20:31:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:31:08,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:28,659 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 31 treesize of output 23 [2024-11-27 20:31:34,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928603231] [2024-11-27 20:31:34,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928603231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1873483157] [2024-11-27 20:31:34,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:34,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:31:34,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:31:34,428 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:31:34,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-27 20:31:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:35,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:31:35,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:36,764 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 17 treesize of output 9 [2024-11-27 20:31:38,951 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 [2024-11-27 20:31:47,524 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 [2024-11-27 20:31:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:31:53,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:07,544 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 31 treesize of output 23 [2024-11-27 20:32:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1873483157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:09,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:09,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 30 [2024-11-27 20:32:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166026795] [2024-11-27 20:32:09,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:09,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 20:32:09,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:32:09,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 20:32:09,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:32:09,969 INFO L87 Difference]: Start difference. First operand 609 states and 772 transitions. Second operand has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-27 20:32:23,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:24,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:44,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:50,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:51,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:55,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:00,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:00,479 INFO L93 Difference]: Finished difference Result 1516 states and 1917 transitions. [2024-11-27 20:34:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 20:34:00,480 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 120 [2024-11-27 20:34:00,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:00,486 INFO L225 Difference]: With dead ends: 1516 [2024-11-27 20:34:00,487 INFO L226 Difference]: Without dead ends: 988 [2024-11-27 20:34:00,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1676 ImplicationChecksByTransitivity, 107.4s TimeCoverageRelationStatistics Valid=994, Invalid=4704, Unknown=2, NotChecked=0, Total=5700 [2024-11-27 20:34:00,490 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 983 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:00,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1523 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 55.6s Time] [2024-11-27 20:34:00,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-27 20:34:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 605. [2024-11-27 20:34:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 510 states have (on average 1.227450980392157) internal successors, (626), 512 states have internal predecessors, (626), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 20:34:00,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 766 transitions. [2024-11-27 20:34:00,616 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 766 transitions. Word has length 120 [2024-11-27 20:34:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:00,617 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 766 transitions. [2024-11-27 20:34:00,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-11-27 20:34:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 766 transitions. [2024-11-27 20:34:00,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:34:00,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:00,620 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:00,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:00,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-27 20:34:01,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:34:01,021 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:01,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:01,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1247415735, now seen corresponding path program 1 times [2024-11-27 20:34:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:01,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712240612] [2024-11-27 20:34:01,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:01,023 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 [2024-11-27 20:34:01,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:01,028 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:34:01,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:01,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:34:01,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:01,448 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 [2024-11-27 20:34:02,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:02,295 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 33 treesize of output 35 [2024-11-27 20:34:02,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:02,556 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 39 treesize of output 15 [2024-11-27 20:34:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-27 20:34:02,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:34:03,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:03,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712240612] [2024-11-27 20:34:03,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712240612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:34:03,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:34:03,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2024-11-27 20:34:03,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119292710] [2024-11-27 20:34:03,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:03,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:34:03,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:03,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:34:03,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:34:03,902 INFO L87 Difference]: Start difference. First operand 605 states and 766 transitions. Second operand has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:34:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:06,497 INFO L93 Difference]: Finished difference Result 1373 states and 1755 transitions. [2024-11-27 20:34:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:34:06,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 120 [2024-11-27 20:34:06,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:06,504 INFO L225 Difference]: With dead ends: 1373 [2024-11-27 20:34:06,504 INFO L226 Difference]: Without dead ends: 849 [2024-11-27 20:34:06,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:34:06,506 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 273 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:06,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 586 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:34:06,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-27 20:34:06,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 815. [2024-11-27 20:34:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 714 states have (on average 1.2436974789915967) internal successors, (888), 718 states have internal predecessors, (888), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-27 20:34:06,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1036 transitions. [2024-11-27 20:34:06,625 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1036 transitions. Word has length 120 [2024-11-27 20:34:06,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:06,626 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1036 transitions. [2024-11-27 20:34:06,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:34:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1036 transitions. [2024-11-27 20:34:06,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:34:06,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:06,628 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:06,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:34:06,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:06,829 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:06,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1834221749, now seen corresponding path program 1 times [2024-11-27 20:34:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196508516] [2024-11-27 20:34:06,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:06,831 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 [2024-11-27 20:34:06,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:06,834 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:34:06,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:07,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:34:07,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:07,364 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 [2024-11-27 20:34:07,829 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 36 treesize of output 29 [2024-11-27 20:34:10,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:10,423 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 53 treesize of output 43 [2024-11-27 20:34:10,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:10,942 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 97 treesize of output 43 [2024-11-27 20:34:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-27 20:34:11,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:34:12,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196508516] [2024-11-27 20:34:12,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196508516] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:12,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:12,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17 [2024-11-27 20:34:12,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605896276] [2024-11-27 20:34:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:12,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:12,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:12,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:34:12,231 INFO L87 Difference]: Start difference. First operand 815 states and 1036 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:34:13,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:13,557 INFO L93 Difference]: Finished difference Result 1573 states and 2007 transitions. [2024-11-27 20:34:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:34:13,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-27 20:34:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:13,564 INFO L225 Difference]: With dead ends: 1573 [2024-11-27 20:34:13,565 INFO L226 Difference]: Without dead ends: 843 [2024-11-27 20:34:13,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:34:13,567 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 52 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:13,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 836 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:34:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-27 20:34:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 839. [2024-11-27 20:34:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 738 states have (on average 1.2357723577235773) internal successors, (912), 742 states have internal predecessors, (912), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-27 20:34:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1060 transitions. [2024-11-27 20:34:13,661 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1060 transitions. Word has length 120 [2024-11-27 20:34:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:13,662 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1060 transitions. [2024-11-27 20:34:13,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:34:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1060 transitions. [2024-11-27 20:34:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:34:13,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:13,664 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:13,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:13,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:13,865 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:13,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:13,866 INFO L85 PathProgramCache]: Analyzing trace with hash -626146711, now seen corresponding path program 1 times [2024-11-27 20:34:13,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:34:13,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272239655] [2024-11-27 20:34:13,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:13,866 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 [2024-11-27 20:34:13,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:34:13,868 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:34:13,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:34:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:14,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 20:34:14,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:14,322 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 21 treesize of output 9 [2024-11-27 20:34:16,310 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 [2024-11-27 20:34:35,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:35,324 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 99 treesize of output 49 [2024-11-27 20:34:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:34:39,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:34:53,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:34:53,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272239655] [2024-11-27 20:34:53,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272239655] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:53,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:53,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [22] total 31 [2024-11-27 20:34:53,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102261901] [2024-11-27 20:34:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:53,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:34:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:53,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:34:53,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:34:53,788 INFO L87 Difference]: Start difference. First operand 839 states and 1060 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:35:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:07,999 INFO L93 Difference]: Finished difference Result 1855 states and 2360 transitions. [2024-11-27 20:35:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:35:08,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-27 20:35:08,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:08,014 INFO L225 Difference]: With dead ends: 1855 [2024-11-27 20:35:08,014 INFO L226 Difference]: Without dead ends: 1101 [2024-11-27 20:35:08,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:35:08,018 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 346 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:08,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 819 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-27 20:35:08,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-27 20:35:08,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 863. [2024-11-27 20:35:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 762 states have (on average 1.2335958005249343) internal successors, (940), 766 states have internal predecessors, (940), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-27 20:35:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1088 transitions. [2024-11-27 20:35:08,169 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1088 transitions. Word has length 120 [2024-11-27 20:35:08,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:08,173 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1088 transitions. [2024-11-27 20:35:08,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:35:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1088 transitions. [2024-11-27 20:35:08,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:35:08,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:08,175 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:08,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:35:08,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:35:08,376 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:08,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:08,377 INFO L85 PathProgramCache]: Analyzing trace with hash 404544067, now seen corresponding path program 1 times [2024-11-27 20:35:08,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:08,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316758432] [2024-11-27 20:35:08,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:08,378 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 [2024-11-27 20:35:08,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:35:08,381 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:35:08,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:35:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:08,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:35:08,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:35:08,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:08,972 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:08,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316758432] [2024-11-27 20:35:08,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316758432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:08,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:08,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:35:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144966295] [2024-11-27 20:35:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:08,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:35:08,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:08,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:08,974 INFO L87 Difference]: Start difference. First operand 863 states and 1088 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:35:09,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:09,266 INFO L93 Difference]: Finished difference Result 889 states and 1119 transitions. [2024-11-27 20:35:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:35:09,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-27 20:35:09,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:09,271 INFO L225 Difference]: With dead ends: 889 [2024-11-27 20:35:09,272 INFO L226 Difference]: Without dead ends: 887 [2024-11-27 20:35:09,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:09,274 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:09,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:35:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-27 20:35:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2024-11-27 20:35:09,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 786 states have (on average 1.2264631043256997) internal successors, (964), 790 states have internal predecessors, (964), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-27 20:35:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1112 transitions. [2024-11-27 20:35:09,398 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1112 transitions. Word has length 120 [2024-11-27 20:35:09,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:09,399 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1112 transitions. [2024-11-27 20:35:09,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:35:09,399 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1112 transitions. [2024-11-27 20:35:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:35:09,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:09,401 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:09,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:35:09,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:35:09,602 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:35:09,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1914796325, now seen corresponding path program 1 times [2024-11-27 20:35:09,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087008708] [2024-11-27 20:35:09,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:09,603 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 [2024-11-27 20:35:09,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:35:09,605 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:35:09,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:35:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:10,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 20:35:10,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:10,068 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 21 treesize of output 9 [2024-11-27 20:35:12,077 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 [2024-11-27 20:35:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:35:31,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:35:47,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:47,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087008708] [2024-11-27 20:35:47,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087008708] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:47,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:47,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [21] total 32 [2024-11-27 20:35:47,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778396144] [2024-11-27 20:35:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:47,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:35:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:35:47,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:35:47,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2024-11-27 20:35:47,291 INFO L87 Difference]: Start difference. First operand 887 states and 1112 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:07,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:07,311 INFO L93 Difference]: Finished difference Result 1907 states and 2374 transitions. [2024-11-27 20:36:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:36:07,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:36:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:07,321 INFO L225 Difference]: With dead ends: 1907 [2024-11-27 20:36:07,321 INFO L226 Difference]: Without dead ends: 1109 [2024-11-27 20:36:07,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:36:07,323 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 644 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:07,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1173 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2024-11-27 20:36:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-11-27 20:36:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 905. [2024-11-27 20:36:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 798 states have (on average 1.2230576441102756) internal successors, (976), 802 states have internal predecessors, (976), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:36:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1132 transitions. [2024-11-27 20:36:07,452 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1132 transitions. Word has length 121 [2024-11-27 20:36:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:07,453 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1132 transitions. [2024-11-27 20:36:07,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1132 transitions. [2024-11-27 20:36:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:36:07,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:07,455 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:07,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:36:07,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:07,656 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:07,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:07,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1369053721, now seen corresponding path program 1 times [2024-11-27 20:36:07,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:36:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224808312] [2024-11-27 20:36:07,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:07,657 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 [2024-11-27 20:36:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:36:07,659 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:36:07,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:08,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:36:08,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:36:17,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:36:24,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:36:24,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224808312] [2024-11-27 20:36:24,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224808312] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:24,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:24,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2024-11-27 20:36:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060893105] [2024-11-27 20:36:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:24,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:36:24,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:36:24,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:36:24,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:36:24,681 INFO L87 Difference]: Start difference. First operand 905 states and 1132 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:44,247 INFO L93 Difference]: Finished difference Result 1875 states and 2334 transitions. [2024-11-27 20:36:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:36:44,261 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:36:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:44,264 INFO L225 Difference]: With dead ends: 1875 [2024-11-27 20:36:44,264 INFO L226 Difference]: Without dead ends: 1059 [2024-11-27 20:36:44,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=231, Invalid=581, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:36:44,266 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 419 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:44,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1495 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2024-11-27 20:36:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-27 20:36:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 903. [2024-11-27 20:36:44,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 796 states have (on average 1.2185929648241205) internal successors, (970), 800 states have internal predecessors, (970), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:36:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1126 transitions. [2024-11-27 20:36:44,407 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1126 transitions. Word has length 121 [2024-11-27 20:36:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:44,408 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1126 transitions. [2024-11-27 20:36:44,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1126 transitions. [2024-11-27 20:36:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:36:44,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:44,410 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:44,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:44,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:44,611 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:44,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:44,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1175791485, now seen corresponding path program 1 times [2024-11-27 20:36:44,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:36:44,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982839502] [2024-11-27 20:36:44,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:44,612 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 [2024-11-27 20:36:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:36:44,616 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:36:44,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:44,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:36:44,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:44,992 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 [2024-11-27 20:36:45,155 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 43 treesize of output 25 [2024-11-27 20:36:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:36:45,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:45,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:36:45,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982839502] [2024-11-27 20:36:45,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982839502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:45,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:45,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:36:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095358682] [2024-11-27 20:36:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:45,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:45,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:36:45,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:45,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:45,360 INFO L87 Difference]: Start difference. First operand 903 states and 1126 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:46,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:46,755 INFO L93 Difference]: Finished difference Result 2036 states and 2560 transitions. [2024-11-27 20:36:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:46,756 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:36:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:46,766 INFO L225 Difference]: With dead ends: 2036 [2024-11-27 20:36:46,766 INFO L226 Difference]: Without dead ends: 1222 [2024-11-27 20:36:46,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:36:46,768 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 108 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:46,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1117 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:36:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-27 20:36:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 967. [2024-11-27 20:36:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 860 states have (on average 1.2279069767441861) internal successors, (1056), 864 states have internal predecessors, (1056), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:36:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1212 transitions. [2024-11-27 20:36:46,874 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1212 transitions. Word has length 121 [2024-11-27 20:36:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:46,875 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1212 transitions. [2024-11-27 20:36:46,875 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1212 transitions. [2024-11-27 20:36:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:36:46,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:46,876 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:46,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:47,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:47,077 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:47,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1285604130, now seen corresponding path program 1 times [2024-11-27 20:36:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:36:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300890953] [2024-11-27 20:36:47,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:47,078 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 [2024-11-27 20:36:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:36:47,080 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:36:47,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:36:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:47,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:36:47,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:50,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:36:50,431 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 47 treesize of output 23 [2024-11-27 20:36:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:36:50,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:50,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:36:50,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300890953] [2024-11-27 20:36:50,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300890953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:50,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:50,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:36:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798992856] [2024-11-27 20:36:50,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:50,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:36:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:36:50,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:36:50,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:36:50,724 INFO L87 Difference]: Start difference. First operand 967 states and 1212 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:59,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:59,664 INFO L93 Difference]: Finished difference Result 2864 states and 3590 transitions. [2024-11-27 20:36:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:36:59,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:36:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:59,673 INFO L225 Difference]: With dead ends: 2864 [2024-11-27 20:36:59,673 INFO L226 Difference]: Without dead ends: 1986 [2024-11-27 20:36:59,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:36:59,676 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 253 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:59,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1339 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-27 20:36:59,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2024-11-27 20:36:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1017. [2024-11-27 20:36:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 910 states have (on average 1.2351648351648352) internal successors, (1124), 914 states have internal predecessors, (1124), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:36:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1280 transitions. [2024-11-27 20:36:59,825 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1280 transitions. Word has length 121 [2024-11-27 20:36:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:59,826 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1280 transitions. [2024-11-27 20:36:59,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:36:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1280 transitions. [2024-11-27 20:36:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:36:59,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:59,828 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:59,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:00,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:00,029 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:37:00,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -302743772, now seen corresponding path program 1 times [2024-11-27 20:37:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:37:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090401457] [2024-11-27 20:37:00,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:00,031 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 [2024-11-27 20:37:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:37:00,033 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:37:00,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:37:00,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:37:00,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:02,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:37:02,622 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 69 treesize of output 31 [2024-11-27 20:37:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:37:04,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:37:04,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:37:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090401457] [2024-11-27 20:37:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090401457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:37:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:37:04,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:37:04,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145965266] [2024-11-27 20:37:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:37:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:37:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:37:04,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:37:04,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:37:04,637 INFO L87 Difference]: Start difference. First operand 1017 states and 1280 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:37:20,695 INFO L93 Difference]: Finished difference Result 2758 states and 3467 transitions. [2024-11-27 20:37:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:37:20,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:37:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:37:20,708 INFO L225 Difference]: With dead ends: 2758 [2024-11-27 20:37:20,708 INFO L226 Difference]: Without dead ends: 1830 [2024-11-27 20:37:20,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:37:20,711 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 182 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:37:20,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 934 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2024-11-27 20:37:20,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-27 20:37:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1045. [2024-11-27 20:37:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 938 states have (on average 1.232409381663113) internal successors, (1156), 942 states have internal predecessors, (1156), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:37:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1312 transitions. [2024-11-27 20:37:20,833 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1312 transitions. Word has length 121 [2024-11-27 20:37:20,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:37:20,834 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1312 transitions. [2024-11-27 20:37:20,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1312 transitions. [2024-11-27 20:37:20,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:37:20,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:37:20,836 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:37:20,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:37:21,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:21,037 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:37:21,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:21,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1426152740, now seen corresponding path program 1 times [2024-11-27 20:37:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:37:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557940210] [2024-11-27 20:37:21,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:21,038 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 [2024-11-27 20:37:21,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:37:21,040 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:37:21,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:37:21,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:37:21,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:26,090 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:37:26,091 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 57 treesize of output 29 [2024-11-27 20:37:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:37:26,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:37:26,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:37:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557940210] [2024-11-27 20:37:26,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557940210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:37:26,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:37:26,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:37:26,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889651189] [2024-11-27 20:37:26,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:37:26,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:37:26,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:37:26,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:37:26,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:37:26,532 INFO L87 Difference]: Start difference. First operand 1045 states and 1312 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:37:36,685 INFO L93 Difference]: Finished difference Result 2439 states and 3056 transitions. [2024-11-27 20:37:36,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:37:36,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:37:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:37:36,702 INFO L225 Difference]: With dead ends: 2439 [2024-11-27 20:37:36,702 INFO L226 Difference]: Without dead ends: 1493 [2024-11-27 20:37:36,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:37:36,705 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 163 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:37:36,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1333 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-27 20:37:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-27 20:37:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1039. [2024-11-27 20:37:36,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 932 states have (on average 1.2317596566523605) internal successors, (1148), 936 states have internal predecessors, (1148), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:37:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1304 transitions. [2024-11-27 20:37:36,854 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1304 transitions. Word has length 121 [2024-11-27 20:37:36,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:37:36,854 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1304 transitions. [2024-11-27 20:37:36,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:36,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1304 transitions. [2024-11-27 20:37:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:37:36,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:37:36,856 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:37:36,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:37:37,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:37,057 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:37:37,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash -162195162, now seen corresponding path program 1 times [2024-11-27 20:37:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:37:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849736883] [2024-11-27 20:37:37,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:37,059 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 [2024-11-27 20:37:37,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:37:37,062 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:37:37,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:37:37,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:37:37,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:40,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:37:40,178 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 61 treesize of output 29 [2024-11-27 20:37:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:37:42,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:37:42,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:37:42,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849736883] [2024-11-27 20:37:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849736883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:37:42,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:37:42,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:37:42,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042687338] [2024-11-27 20:37:42,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:37:42,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:37:42,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:37:42,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:37:42,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:37:42,565 INFO L87 Difference]: Start difference. First operand 1039 states and 1304 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:37:57,756 INFO L93 Difference]: Finished difference Result 2281 states and 2865 transitions. [2024-11-27 20:37:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:37:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-27 20:37:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:37:57,767 INFO L225 Difference]: With dead ends: 2281 [2024-11-27 20:37:57,767 INFO L226 Difference]: Without dead ends: 1341 [2024-11-27 20:37:57,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:37:57,770 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:37:57,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 776 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2024-11-27 20:37:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-27 20:37:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1025. [2024-11-27 20:37:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 918 states have (on average 1.2287581699346406) internal successors, (1128), 922 states have internal predecessors, (1128), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:37:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1284 transitions. [2024-11-27 20:37:57,926 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1284 transitions. Word has length 121 [2024-11-27 20:37:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:37:57,927 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1284 transitions. [2024-11-27 20:37:57,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:37:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1284 transitions. [2024-11-27 20:37:57,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:37:57,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:37:57,929 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:37:57,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:58,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:58,134 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:37:58,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash 674585128, now seen corresponding path program 1 times [2024-11-27 20:37:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:37:58,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491442724] [2024-11-27 20:37:58,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:58,135 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 [2024-11-27 20:37:58,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:37:58,138 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:37:58,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:37:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:37:59,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 20:37:59,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:59,337 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 21 treesize of output 9 [2024-11-27 20:38:07,959 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 54 treesize of output 45 [2024-11-27 20:38:20,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:38:20,049 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 49 treesize of output 31 [2024-11-27 20:38:20,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:38:20,086 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 78 treesize of output 38 [2024-11-27 20:38:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:38:23,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:38:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:38:45,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:38:45,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491442724] [2024-11-27 20:38:45,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491442724] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:45,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:38:45,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [22] total 35 [2024-11-27 20:38:45,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214333849] [2024-11-27 20:38:45,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:45,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:38:45,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:38:45,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:38:45,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 20:38:45,157 INFO L87 Difference]: Start difference. First operand 1025 states and 1284 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:38:58,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:02,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:06,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:10,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:11,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:16,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:20,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:24,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:28,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:46,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:50,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:54,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:39:58,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:40:03,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:40:07,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:40:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:40:10,477 INFO L93 Difference]: Finished difference Result 2437 states and 3062 transitions. [2024-11-27 20:40:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:40:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-11-27 20:40:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:40:10,487 INFO L225 Difference]: With dead ends: 2437 [2024-11-27 20:40:10,487 INFO L226 Difference]: Without dead ends: 1511 [2024-11-27 20:40:10,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 20:40:10,490 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 123 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 14 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:40:10,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1272 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 610 Invalid, 14 Unknown, 0 Unchecked, 75.8s Time] [2024-11-27 20:40:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-27 20:40:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1153. [2024-11-27 20:40:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1046 states have (on average 1.2323135755258126) internal successors, (1289), 1050 states have internal predecessors, (1289), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:40:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1445 transitions. [2024-11-27 20:40:10,644 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1445 transitions. Word has length 122 [2024-11-27 20:40:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:40:10,644 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1445 transitions. [2024-11-27 20:40:10,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:40:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1445 transitions. [2024-11-27 20:40:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:40:10,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:40:10,645 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:40:10,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Forceful destruction successful, exit code 0 [2024-11-27 20:40:10,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:40:10,846 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:40:10,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:40:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2027962321, now seen corresponding path program 1 times [2024-11-27 20:40:10,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:40:10,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64458315] [2024-11-27 20:40:10,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:40:10,847 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 [2024-11-27 20:40:10,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:40:10,849 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:40:10,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:40:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:40:11,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:40:11,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:40:12,111 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 39 treesize of output 21 [2024-11-27 20:40:12,182 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-27 20:40:12,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:40:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:40:13,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:40:13,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64458315] [2024-11-27 20:40:13,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64458315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:40:13,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:40:13,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-11-27 20:40:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770845630] [2024-11-27 20:40:13,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:40:13,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:40:13,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:40:13,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:40:13,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:40:13,219 INFO L87 Difference]: Start difference. First operand 1153 states and 1445 transitions. Second operand has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:40:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:40:14,987 INFO L93 Difference]: Finished difference Result 2238 states and 2803 transitions. [2024-11-27 20:40:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:40:14,988 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 122 [2024-11-27 20:40:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:40:14,993 INFO L225 Difference]: With dead ends: 2238 [2024-11-27 20:40:14,993 INFO L226 Difference]: Without dead ends: 1187 [2024-11-27 20:40:14,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:40:14,996 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 195 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:40:14,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 387 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:40:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2024-11-27 20:40:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1153. [2024-11-27 20:40:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1046 states have (on average 1.2246653919694073) internal successors, (1281), 1050 states have internal predecessors, (1281), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:40:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1437 transitions. [2024-11-27 20:40:15,142 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1437 transitions. Word has length 122 [2024-11-27 20:40:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:40:15,143 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1437 transitions. [2024-11-27 20:40:15,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 20:40:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1437 transitions. [2024-11-27 20:40:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:40:15,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:40:15,145 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:40:15,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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)] Ended with exit code 0 [2024-11-27 20:40:15,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:40:15,346 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:40:15,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:40:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2048150257, now seen corresponding path program 1 times [2024-11-27 20:40:15,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:40:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104958915] [2024-11-27 20:40:15,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:40:15,347 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 [2024-11-27 20:40:15,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:40:15,349 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:40:15,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:40:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:40:15,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:40:15,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:40:15,817 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 21 treesize of output 9 [2024-11-27 20:40:17,977 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 [2024-11-27 20:40:22,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:40:22,115 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 64 treesize of output 34 [2024-11-27 20:40:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:40:24,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:40:47,627 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 31 treesize of output 23 [2024-11-27 20:40:54,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:40:54,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104958915] [2024-11-27 20:40:54,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104958915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:40:54,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1042613423] [2024-11-27 20:40:54,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:40:54,008 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:40:54,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:40:54,011 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:40:54,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-27 20:40:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:40:55,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:40:55,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:40:56,666 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 17 treesize of output 9 [2024-11-27 20:40:59,279 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 [2024-11-27 20:41:11,065 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 [2024-11-27 20:41:23,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:41:23,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 36 [2024-11-27 20:41:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 208 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-27 20:41:27,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:41:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:41:41,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1042613423] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:41:41,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:41:41,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 19] total 41 [2024-11-27 20:41:41,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110287910] [2024-11-27 20:41:41,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:41:41,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:41:41,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:41:41,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:41:41,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2094, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 20:41:41,635 INFO L87 Difference]: Start difference. First operand 1153 states and 1437 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:41:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:41:54,294 INFO L93 Difference]: Finished difference Result 2448 states and 3073 transitions. [2024-11-27 20:41:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:41:54,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-11-27 20:41:54,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:41:54,304 INFO L225 Difference]: With dead ends: 2448 [2024-11-27 20:41:54,304 INFO L226 Difference]: Without dead ends: 1407 [2024-11-27 20:41:54,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 69.5s TimeCoverageRelationStatistics Valid=384, Invalid=2268, Unknown=0, NotChecked=0, Total=2652 [2024-11-27 20:41:54,306 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 280 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:41:54,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 790 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-27 20:41:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-27 20:41:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1129. [2024-11-27 20:41:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1022 states have (on average 1.2240704500978474) internal successors, (1251), 1026 states have internal predecessors, (1251), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 20:41:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1407 transitions. [2024-11-27 20:41:54,434 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1407 transitions. Word has length 122 [2024-11-27 20:41:54,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:41:54,434 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1407 transitions. [2024-11-27 20:41:54,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:41:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1407 transitions. [2024-11-27 20:41:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:41:54,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:41:54,436 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:41:54,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-27 20:41:54,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:41:54,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:41:54,837 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:41:54,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:41:54,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1697154134, now seen corresponding path program 1 times [2024-11-27 20:41:54,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:41:54,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469426631] [2024-11-27 20:41:54,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:41:54,838 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 [2024-11-27 20:41:54,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:41:54,840 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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) [2024-11-27 20:41:54,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388bcd2a-25f8-4351-b4e0-ee5ca71e48c6/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 [2024-11-27 20:41:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:41:56,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:41:56,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:41:56,296 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 21 treesize of output 9 [2024-11-27 20:42:00,180 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 54 treesize of output 45 [2024-11-27 20:42:07,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:42:07,526 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 58 treesize of output 36 [2024-11-27 20:42:07,538 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 28 treesize of output 16 [2024-11-27 20:42:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:42:09,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:42:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:42:20,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469426631] [2024-11-27 20:42:20,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469426631] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:42:20,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:42:20,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 26 [2024-11-27 20:42:20,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40341311] [2024-11-27 20:42:20,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:20,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:42:20,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:20,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:42:20,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:42:20,109 INFO L87 Difference]: Start difference. First operand 1129 states and 1407 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-27 20:42:27,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:42:31,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:42:35,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:42:39,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:42:43,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []